Questions tagged [cosine-similarity]

To convert cosine similarity to weighted cosine similarity, one can use at least two approaches. But I don't know which one is better. The first approach is to first reweight each vector and then calculate a normal cosine similarity. In other…

One question regarding to the triangle inequality of normalized Levenshtein Distance. I use the well-known form D(X,Y) = 1 - d(X,Y) / MAX(|X|,|Y|) where d(X,Y) is Levenshtein Distance. And I understand it violates the triangle inequality. But I…

Are there any open source implementations out there that can efficiently solve the following. I'm given a fixed set $S$ of $n$-dimensional vectors of size $N$, where $N$ is of the order of a million. Given an n-dimensional vector $v$, I want to…