Github user myui commented on a diff in the pull request:
https://github.com/apache/incubator-hivemall/pull/93#discussion_r125178426
--- Diff: core/src/main/java/hivemall/smile/tools/MaxEntPredictUDF.java ---
@@ -0,0 +1,174 @@
+package hivemall.smile.tools;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import org.apache.hadoop.hive.ql.exec.UDFArgumentException;
+import org.apache.hadoop.hive.ql.metadata.HiveException;
+import org.apache.hadoop.hive.ql.udf.generic.GenericUDF;
+import org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject;
+import org.apache.hadoop.hive.serde2.io.DoubleWritable;
+import org.apache.hadoop.hive.serde2.objectinspector.ListObjectInspector;
+import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
+import
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory;
+import
org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
+import
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
+import
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils;
+import
org.apache.hadoop.hive.serde2.objectinspector.primitive.StringObjectInspector;
+import org.apache.hadoop.io.IntWritable;
+import org.apache.hadoop.io.Text;
+
+import hivemall.math.matrix.builders.CSRMatrixBuilder;
+import hivemall.math.matrix.builders.MatrixBuilder;
+import hivemall.math.vector.DenseVector;
+import hivemall.math.vector.SparseVector;
+import hivemall.math.vector.Vector;
+import hivemall.smile.classification.DecisionTree;
+import hivemall.smile.classification.PredictionHandler;
+import hivemall.smile.data.Attribute;
+import hivemall.smile.data.Attribute.AttributeType;
+import hivemall.smile.regression.RegressionTree;
+import hivemall.smile.utils.SmileExtUtils;
+import hivemall.utils.codec.Base91;
+import hivemall.utils.hadoop.HiveUtils;
+import hivemall.utils.hadoop.WritableUtils;
+import hivemall.utils.lang.Preconditions;
+import opennlp.model.AbstractModel;
+import opennlp.model.GenericModelReader;
+import opennlp.model.MaxentModel;
+import opennlp.model.RealValueFileEventStream;
+
+public class MaxEntPredictUDF extends GenericUDF {
--- End diff --
UDF/UDTF/UDAF classes should have UDF annotation as seen in
https://github.com/apache/incubator-hivemall/blob/master/core/src/main/java/hivemall/smile/tools/TreePredictUDF.java#L56.
It is used when [`desc function extended
xxx`](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-HiveOperatorsandUser-DefinedFunctions(UDFs)).
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
