SimilarityFunctions

#summary Covers methods of comparing semantic vectors

= Similarity Functions =

The S-Space package provides several static similarity functions in the [http://code.google.com/p/airhead-research/source/browse/trunk/sspace/src/edu/ucla/sspace/common/Similarity.java Similarity] class.

• [http://en.wikipedia.org/wiki/Cosine_similarity Cosine similarity]
• [http://en.wikipedia.org/wiki/Pearson_product-moment_correlation_coefficient Pearson product-moment correlation coefficient]
• [http://en.wikipedia.org/wiki/Euclidean_distance Euclidean distance/similarity]
• [http://en.wikipedia.org/wiki/Spearman_rank_correlation Spearman rank correlation coefficient]
• [http://en.wikipedia.org/wiki/Kullback%E2%80%93Leibler_divergence K-L Divergence]
• [http://en.wikipedia.org/wiki/Jaccard_index Jaccard Index]