Using faiss for selection of negative samples

[LeonS-creator]

Hi there,

I was wondering if I could use faiss for negative sample selection. I want to compare a positive sample (a vector of an abstract) with selected negative samples and select k least similar negative samples (with an option to use a threshold).

Looking at faiss, I am not quite sure if it can be used for my problem.
Can I select a group of vectors from the data set in faiss to be compared with the positive vector instead of comparing the whole data set with the positive vector?

Thanks!