How to Implement a Cosine Similarity Function in TypeScript

I attempted to implement this on the front end of my e-commerce site, which has approximately 20,000 products (see gist [1]). My goal was to enhance search speed by performing as many local operations as possible.

Biggest impact in performance was by moving to dot products.

Regrettably, the sheer size of the index of embeddings rendered it impractical to achieve the desired results.

1. https://gist.github.com/schappim/d4a6f0b29c1ef4279543f6b6740...

This looks nice. I also played on the weekend with Vue and Transformer.js to build the embeddings locally. See https://github.com/alexanderop/vue-vector-search