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Posted to commits@mahout.apache.org by sr...@apache.org on 2010/02/11 00:21:42 UTC

svn commit: r908744 - /lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java

Author: srowen
Date: Wed Feb 10 23:21:36 2010
New Revision: 908744

URL: http://svn.apache.org/viewvc?rev=908744&view=rev
Log:
Fix the check for items that are alredy known -- was backwards (thanks Guohua)

Modified:
    lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java

Modified: lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java
URL: http://svn.apache.org/viewvc/lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java?rev=908744&r1=908743&r2=908744&view=diff
==============================================================================
--- lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java (original)
+++ lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java Wed Feb 10 23:21:36 2010
@@ -127,7 +127,7 @@
     while (recommendationVectorIterator.hasNext()) {
       Vector.Element element = recommendationVectorIterator.next();
       int index = element.index();
-      if (userVector.get(index) != 0.0) {
+      if (userVector.get(index) == 0.0) {
         if (topItems.size() < recommendationsPerUser) {
           indexItemIDMap.get(new IntWritable(index), itemID);
           topItems.add(new GenericRecommendedItem(itemID.get(), (float) element.get()));