http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/bits/BitsORUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/bits/BitsORUDF.java 
b/core/src/main/java/hivemall/tools/bits/BitsORUDF.java
index 909628a..98a659c 100644
--- a/core/src/main/java/hivemall/tools/bits/BitsORUDF.java
+++ b/core/src/main/java/hivemall/tools/bits/BitsORUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.bits;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/bits/ToBitsUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/bits/ToBitsUDF.java 
b/core/src/main/java/hivemall/tools/bits/ToBitsUDF.java
index 0ebda7f..ba9bcd9 100644
--- a/core/src/main/java/hivemall/tools/bits/ToBitsUDF.java
+++ b/core/src/main/java/hivemall/tools/bits/ToBitsUDF.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 package hivemall.tools.bits;
 
 import hivemall.utils.hadoop.HiveUtils;

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/bits/UnBitsUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/bits/UnBitsUDF.java 
b/core/src/main/java/hivemall/tools/bits/UnBitsUDF.java
index 1525972..705d19d 100644
--- a/core/src/main/java/hivemall/tools/bits/UnBitsUDF.java
+++ b/core/src/main/java/hivemall/tools/bits/UnBitsUDF.java
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 package hivemall.tools.bits;
 
 import hivemall.utils.hadoop.HiveUtils;

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/compress/DeflateUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/compress/DeflateUDF.java 
b/core/src/main/java/hivemall/tools/compress/DeflateUDF.java
index e34c925..26c4c0e 100644
--- a/core/src/main/java/hivemall/tools/compress/DeflateUDF.java
+++ b/core/src/main/java/hivemall/tools/compress/DeflateUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.compress;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/compress/InflateUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/compress/InflateUDF.java 
b/core/src/main/java/hivemall/tools/compress/InflateUDF.java
index f4afa62..0021208 100644
--- a/core/src/main/java/hivemall/tools/compress/InflateUDF.java
+++ b/core/src/main/java/hivemall/tools/compress/InflateUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.compress;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/map/MapGetSumUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/map/MapGetSumUDF.java 
b/core/src/main/java/hivemall/tools/map/MapGetSumUDF.java
index e53f919..a511963 100644
--- a/core/src/main/java/hivemall/tools/map/MapGetSumUDF.java
+++ b/core/src/main/java/hivemall/tools/map/MapGetSumUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.map;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/map/MapTailNUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/map/MapTailNUDF.java 
b/core/src/main/java/hivemall/tools/map/MapTailNUDF.java
index 26c10bc..f2da8b8 100644
--- a/core/src/main/java/hivemall/tools/map/MapTailNUDF.java
+++ b/core/src/main/java/hivemall/tools/map/MapTailNUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.map;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/map/UDAFToMap.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/map/UDAFToMap.java 
b/core/src/main/java/hivemall/tools/map/UDAFToMap.java
index 5b1c89a..e4d42d9 100644
--- a/core/src/main/java/hivemall/tools/map/UDAFToMap.java
+++ b/core/src/main/java/hivemall/tools/map/UDAFToMap.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.map;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/map/UDAFToOrderedMap.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/map/UDAFToOrderedMap.java 
b/core/src/main/java/hivemall/tools/map/UDAFToOrderedMap.java
index c06cbd8..1acc67e 100644
--- a/core/src/main/java/hivemall/tools/map/UDAFToOrderedMap.java
+++ b/core/src/main/java/hivemall/tools/map/UDAFToOrderedMap.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.map;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/mapred/DistributedCacheLookupUDF.java
----------------------------------------------------------------------
diff --git 
a/core/src/main/java/hivemall/tools/mapred/DistributedCacheLookupUDF.java 
b/core/src/main/java/hivemall/tools/mapred/DistributedCacheLookupUDF.java
index 1904309..1f6c324 100644
--- a/core/src/main/java/hivemall/tools/mapred/DistributedCacheLookupUDF.java
+++ b/core/src/main/java/hivemall/tools/mapred/DistributedCacheLookupUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.mapred;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/mapred/JobConfGetsUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/mapred/JobConfGetsUDF.java 
b/core/src/main/java/hivemall/tools/mapred/JobConfGetsUDF.java
index 06481b3..7c978d0 100644
--- a/core/src/main/java/hivemall/tools/mapred/JobConfGetsUDF.java
+++ b/core/src/main/java/hivemall/tools/mapred/JobConfGetsUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.mapred;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/mapred/JobIdUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/mapred/JobIdUDF.java 
b/core/src/main/java/hivemall/tools/mapred/JobIdUDF.java
index a7c5a72..d4c962e 100644
--- a/core/src/main/java/hivemall/tools/mapred/JobIdUDF.java
+++ b/core/src/main/java/hivemall/tools/mapred/JobIdUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.mapred;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/mapred/RowIdUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/mapred/RowIdUDF.java 
b/core/src/main/java/hivemall/tools/mapred/RowIdUDF.java
index 307bff0..558bb68 100644
--- a/core/src/main/java/hivemall/tools/mapred/RowIdUDF.java
+++ b/core/src/main/java/hivemall/tools/mapred/RowIdUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.mapred;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/mapred/TaskIdUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/mapred/TaskIdUDF.java 
b/core/src/main/java/hivemall/tools/mapred/TaskIdUDF.java
index 8f31f02..157a5a4 100644
--- a/core/src/main/java/hivemall/tools/mapred/TaskIdUDF.java
+++ b/core/src/main/java/hivemall/tools/mapred/TaskIdUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.mapred;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/math/SigmoidGenericUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/math/SigmoidGenericUDF.java 
b/core/src/main/java/hivemall/tools/math/SigmoidGenericUDF.java
index 485a918..881d94d 100644
--- a/core/src/main/java/hivemall/tools/math/SigmoidGenericUDF.java
+++ b/core/src/main/java/hivemall/tools/math/SigmoidGenericUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.math;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/text/Base91UDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/text/Base91UDF.java 
b/core/src/main/java/hivemall/tools/text/Base91UDF.java
index c55e1d1..44d6b22 100644
--- a/core/src/main/java/hivemall/tools/text/Base91UDF.java
+++ b/core/src/main/java/hivemall/tools/text/Base91UDF.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.text;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/text/NormalizeUnicodeUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/text/NormalizeUnicodeUDF.java 
b/core/src/main/java/hivemall/tools/text/NormalizeUnicodeUDF.java
index 8b3f878..d34225d 100644
--- a/core/src/main/java/hivemall/tools/text/NormalizeUnicodeUDF.java
+++ b/core/src/main/java/hivemall/tools/text/NormalizeUnicodeUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.text;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/text/SplitWordsUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/text/SplitWordsUDF.java 
b/core/src/main/java/hivemall/tools/text/SplitWordsUDF.java
index 2a5b01f..3f318f2 100644
--- a/core/src/main/java/hivemall/tools/text/SplitWordsUDF.java
+++ b/core/src/main/java/hivemall/tools/text/SplitWordsUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.text;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/text/StopwordUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/text/StopwordUDF.java 
b/core/src/main/java/hivemall/tools/text/StopwordUDF.java
index 482b91f..9d68de1 100644
--- a/core/src/main/java/hivemall/tools/text/StopwordUDF.java
+++ b/core/src/main/java/hivemall/tools/text/StopwordUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.text;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/text/TokenizeUDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/text/TokenizeUDF.java 
b/core/src/main/java/hivemall/tools/text/TokenizeUDF.java
index 7b2cda4..a5c8777 100644
--- a/core/src/main/java/hivemall/tools/text/TokenizeUDF.java
+++ b/core/src/main/java/hivemall/tools/text/TokenizeUDF.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.text;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/tools/text/Unbase91UDF.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/tools/text/Unbase91UDF.java 
b/core/src/main/java/hivemall/tools/text/Unbase91UDF.java
index fd421f4..32b1098 100644
--- a/core/src/main/java/hivemall/tools/text/Unbase91UDF.java
+++ b/core/src/main/java/hivemall/tools/text/Unbase91UDF.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.tools.text;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/HivemallUtils.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/HivemallUtils.java 
b/core/src/main/java/hivemall/utils/HivemallUtils.java
index fdbaf0b..d8d8979 100644
--- a/core/src/main/java/hivemall/utils/HivemallUtils.java
+++ b/core/src/main/java/hivemall/utils/HivemallUtils.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/buffer/DynamicByteArray.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/buffer/DynamicByteArray.java 
b/core/src/main/java/hivemall/utils/buffer/DynamicByteArray.java
index c1e710e..87a8fbb 100644
--- a/core/src/main/java/hivemall/utils/buffer/DynamicByteArray.java
+++ b/core/src/main/java/hivemall/utils/buffer/DynamicByteArray.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
- *
- * Copyright (C) 2015 Makoto YUI
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- *         http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 /*
  * Licensed to the Apache Software Foundation (ASF) under one

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/buffer/HeapBuffer.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/buffer/HeapBuffer.java 
b/core/src/main/java/hivemall/utils/buffer/HeapBuffer.java
index e7075f8..e0a3c9e 100644
--- a/core/src/main/java/hivemall/utils/buffer/HeapBuffer.java
+++ b/core/src/main/java/hivemall/utils/buffer/HeapBuffer.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.buffer;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/codec/Base91.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/codec/Base91.java 
b/core/src/main/java/hivemall/utils/codec/Base91.java
index 4e25fc0..27bdf62 100644
--- a/core/src/main/java/hivemall/utils/codec/Base91.java
+++ b/core/src/main/java/hivemall/utils/codec/Base91.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 /*
  * basE91 encoding/decoding routines

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/codec/CompressionCodec.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/codec/CompressionCodec.java 
b/core/src/main/java/hivemall/utils/codec/CompressionCodec.java
index 1355205..9b6d33d 100644
--- a/core/src/main/java/hivemall/utils/codec/CompressionCodec.java
+++ b/core/src/main/java/hivemall/utils/codec/CompressionCodec.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.codec;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/codec/DeflateCodec.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/codec/DeflateCodec.java 
b/core/src/main/java/hivemall/utils/codec/DeflateCodec.java
index d4a63a9..7697f30 100644
--- a/core/src/main/java/hivemall/utils/codec/DeflateCodec.java
+++ b/core/src/main/java/hivemall/utils/codec/DeflateCodec.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.codec;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/codec/VariableByteCodec.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/codec/VariableByteCodec.java 
b/core/src/main/java/hivemall/utils/codec/VariableByteCodec.java
index 01a703a..376332a 100644
--- a/core/src/main/java/hivemall/utils/codec/VariableByteCodec.java
+++ b/core/src/main/java/hivemall/utils/codec/VariableByteCodec.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.codec;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/codec/ZigZagLEB128Codec.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/codec/ZigZagLEB128Codec.java 
b/core/src/main/java/hivemall/utils/codec/ZigZagLEB128Codec.java
index 9518a69..21ea118 100644
--- a/core/src/main/java/hivemall/utils/codec/ZigZagLEB128Codec.java
+++ b/core/src/main/java/hivemall/utils/codec/ZigZagLEB128Codec.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.codec;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/BoundedPriorityQueue.java
----------------------------------------------------------------------
diff --git 
a/core/src/main/java/hivemall/utils/collections/BoundedPriorityQueue.java 
b/core/src/main/java/hivemall/utils/collections/BoundedPriorityQueue.java
index 232ebab..6844e81 100644
--- a/core/src/main/java/hivemall/utils/collections/BoundedPriorityQueue.java
+++ b/core/src/main/java/hivemall/utils/collections/BoundedPriorityQueue.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/DoubleArray3D.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/DoubleArray3D.java 
b/core/src/main/java/hivemall/utils/collections/DoubleArray3D.java
index d61a163..5716212 100644
--- a/core/src/main/java/hivemall/utils/collections/DoubleArray3D.java
+++ b/core/src/main/java/hivemall/utils/collections/DoubleArray3D.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/DoubleArrayList.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/DoubleArrayList.java 
b/core/src/main/java/hivemall/utils/collections/DoubleArrayList.java
index d35e6f6..1a37845 100644
--- a/core/src/main/java/hivemall/utils/collections/DoubleArrayList.java
+++ b/core/src/main/java/hivemall/utils/collections/DoubleArrayList.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/DoubleRingBuffer.java
----------------------------------------------------------------------
diff --git 
a/core/src/main/java/hivemall/utils/collections/DoubleRingBuffer.java 
b/core/src/main/java/hivemall/utils/collections/DoubleRingBuffer.java
index fa3ddcd..c7a17c4 100644
--- a/core/src/main/java/hivemall/utils/collections/DoubleRingBuffer.java
+++ b/core/src/main/java/hivemall/utils/collections/DoubleRingBuffer.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/FixedIntArray.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/FixedIntArray.java 
b/core/src/main/java/hivemall/utils/collections/FixedIntArray.java
index e0a2532..d4acdc1 100644
--- a/core/src/main/java/hivemall/utils/collections/FixedIntArray.java
+++ b/core/src/main/java/hivemall/utils/collections/FixedIntArray.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/IMapIterator.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/IMapIterator.java 
b/core/src/main/java/hivemall/utils/collections/IMapIterator.java
index ea1d6d6..7e9170e 100644
--- a/core/src/main/java/hivemall/utils/collections/IMapIterator.java
+++ b/core/src/main/java/hivemall/utils/collections/IMapIterator.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/IndexedSet.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/IndexedSet.java 
b/core/src/main/java/hivemall/utils/collections/IndexedSet.java
index c44018b..d636b86 100644
--- a/core/src/main/java/hivemall/utils/collections/IndexedSet.java
+++ b/core/src/main/java/hivemall/utils/collections/IndexedSet.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/Int2FloatOpenHashTable.java
----------------------------------------------------------------------
diff --git 
a/core/src/main/java/hivemall/utils/collections/Int2FloatOpenHashTable.java 
b/core/src/main/java/hivemall/utils/collections/Int2FloatOpenHashTable.java
index 6abea89..49f27c8 100644
--- a/core/src/main/java/hivemall/utils/collections/Int2FloatOpenHashTable.java
+++ b/core/src/main/java/hivemall/utils/collections/Int2FloatOpenHashTable.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/Int2IntOpenHashTable.java
----------------------------------------------------------------------
diff --git 
a/core/src/main/java/hivemall/utils/collections/Int2IntOpenHashTable.java 
b/core/src/main/java/hivemall/utils/collections/Int2IntOpenHashTable.java
index 15bd38d..211157e 100644
--- a/core/src/main/java/hivemall/utils/collections/Int2IntOpenHashTable.java
+++ b/core/src/main/java/hivemall/utils/collections/Int2IntOpenHashTable.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/Int2LongOpenHashTable.java
----------------------------------------------------------------------
diff --git 
a/core/src/main/java/hivemall/utils/collections/Int2LongOpenHashTable.java 
b/core/src/main/java/hivemall/utils/collections/Int2LongOpenHashTable.java
index d372ffa..2c229a4 100644
--- a/core/src/main/java/hivemall/utils/collections/Int2LongOpenHashTable.java
+++ b/core/src/main/java/hivemall/utils/collections/Int2LongOpenHashTable.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/IntArray.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/IntArray.java 
b/core/src/main/java/hivemall/utils/collections/IntArray.java
index 7296e74..a530efe 100644
--- a/core/src/main/java/hivemall/utils/collections/IntArray.java
+++ b/core/src/main/java/hivemall/utils/collections/IntArray.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/IntArrayList.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/IntArrayList.java 
b/core/src/main/java/hivemall/utils/collections/IntArrayList.java
index 50283a3..c0d79de 100644
--- a/core/src/main/java/hivemall/utils/collections/IntArrayList.java
+++ b/core/src/main/java/hivemall/utils/collections/IntArrayList.java
@@ -1,19 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/IntOpenHashMap.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/hivemall/utils/collections/IntOpenHashMap.java 
b/core/src/main/java/hivemall/utils/collections/IntOpenHashMap.java
index c692a0f..4621e6d 100644
--- a/core/src/main/java/hivemall/utils/collections/IntOpenHashMap.java
+++ b/core/src/main/java/hivemall/utils/collections/IntOpenHashMap.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/d806bf45/core/src/main/java/hivemall/utils/collections/IntOpenHashTable.java
----------------------------------------------------------------------
diff --git 
a/core/src/main/java/hivemall/utils/collections/IntOpenHashTable.java 
b/core/src/main/java/hivemall/utils/collections/IntOpenHashTable.java
index 2455c4c..8d0cdf2 100644
--- a/core/src/main/java/hivemall/utils/collections/IntOpenHashTable.java
+++ b/core/src/main/java/hivemall/utils/collections/IntOpenHashTable.java
@@ -1,20 +1,20 @@
 /*
- * Hivemall: Hive scalable Machine Learning Library
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Copyright (C) 2015 Makoto YUI
- * Copyright (C) 2013-2015 National Institute of Advanced Industrial Science 
and Technology (AIST)
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 package hivemall.utils.collections;
 


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