Merge pull request #189 from SunYatong/2.0.0

buildSimilarityMatrix fix
guoguibing · Aug 21, 2017 · d4ce747 · d4ce747
2 parents 0bde407 + 646aeca
commit d4ce747
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/core/src/main/java/net/librec/similarity/AbstractRecommenderSimilarity.java b/core/src/main/java/net/librec/similarity/AbstractRecommenderSimilarity.java
@@ -83,7 +83,7 @@ public void buildSimilarityMatrix(DataModel dataModel) {
                         }
 
                         double sim = getCorrelation(thisVector, thatVector);
-                        if (!Double.isNaN(sim)) {
+                        if (!Double.isNaN(sim) && sim != 0) {
                             similarityMatrix.set(i, j, sim);
                         }
                     }