Difference between revisions of "Cosine similarity"
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== External links == | == External links == | ||
* [[Wikipedia: Cosine similarity]] | * [[Wikipedia: Cosine similarity]] | ||
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| + | [[Category: Similarity measure]] | ||
Latest revision as of 11:02, 3 February 2012
The cosine similarity measures the similarity between two vectors by the cosine of the angle between them. In recommender systems, the cosine similarity is often used in kNN-based methods to determine the neighborhood of a user or item, and as a weight to compute predictions using those neighbors.
