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https://issues.apache.org/jira/browse/MAHOUT-1493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14088415#comment-14088415
]
ASF GitHub Bot commented on MAHOUT-1493:
----------------------------------------
Github user dlyubimov commented on a diff in the pull request:
https://github.com/apache/mahout/pull/32#discussion_r15908947
--- Diff:
spark/src/main/scala/org/apache/mahout/sparkbindings/drm/classification/NaiveBayes.scala
---
@@ -0,0 +1,74 @@
+/**
+ * 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 org.apache.mahout.sparkbindings.drm.classification
+
+import org.apache.mahout.math.drm._
+import org.apache.mahout.math.scalabindings
+import org.apache.mahout.math.scalabindings._
+import org.apache.mahout.classifier.naivebayes.NaiveBayesModel
+import
org.apache.mahout.classifier.naivebayes.training.ComplementaryThetaTrainer
+
+import scala.reflect.ClassTag
+
+/**
+ * Distributed training of a Naive Bayes model. Follows the approach
presented in Rennie et.al.: Tackling the poor
+ * assumptions of Naive Bayes Text classifiers, ICML 2003,
http://people.csail.mit.edu/jrennie/papers/icml03-nb.pdf
+ */
+object NaiveBayes {
+
+ /** default value for the smoothing parameter */
+ def defaultAlphaI = 1f
--- End diff --
Mahout convention is to write these as `1.0` rather than a float.
> Port Naive Bayes to the Spark DSL
> ---------------------------------
>
> Key: MAHOUT-1493
> URL: https://issues.apache.org/jira/browse/MAHOUT-1493
> Project: Mahout
> Issue Type: Bug
> Components: Classification
> Reporter: Sebastian Schelter
> Assignee: Sebastian Schelter
> Fix For: 1.0
>
> Attachments: MAHOUT-1493.patch, MAHOUT-1493.patch, MAHOUT-1493.patch,
> MAHOUT-1493.patch, MAHOUT-1493a.patch
>
>
> Port our Naive Bayes implementation to the new spark dsl. Shouldn't require
> more than a few lines of code.
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