Support for inner product similarity measures (dot product)

[matt90luo]

Is there any plan to support inner product similarity measures?

[alexklibisz]

Is that different from the cosine/angular similarity?

[alexklibisz]

Closing to keep things tidy. Feel free to re-open if you have any followup.

[joancf]

Is that different from the cosine/angular similarity?

Hi,
i think that the dot product could be an improvement in performance, and easy to implement.
As
cosine_similarity(v1,v2) = dot_product(v1/v2)/(||v1|| * ||v2||)

using dot_product simplifies the computation as the magnitude of the vectors are not needed reducing the computation time to 1/3 of the original one,
And most of the funcitonality is there