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How to Implement a Cosine Similarity Function in TypeScript

(alexop.dev)
86 points alexop | 1 comments | 09 Mar 25 09:20 UTC | HN request time: 0s | source
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raverbashing ◴[11 Mar 25 06:29 UTC] No.43329726[source]▶
Meanwhile in Python this is just

    (a @ b.T)/(np.linalg.norm(a)*np.linalg.norm(b))
replies(1): >>43330264 #
forgotpwd16 ◴[11 Mar 25 08:08 UTC] No.43330264[source]▶
Because you use numpy. Could as well import cosine_similarity from sklearn.
replies(1): >>43331468 #
1. Etherlord87 ◴[11 Mar 25 11:41 UTC] No.43331468[source]▶
you could also normalize (divide all components by magnitude) both vectors and simply take the dot product?