Hi Faiss team,

I am looking at SQ8 - Scalar Quantization code and try to understand what exactly quantization that Faiss performs. https://github.com/facebookresearch/faiss/blob/master/faiss/impl/ScalarQuantizer.cpp

This code is very hard to understand for me. Do you have any paper or document that describes the implementation that you use in ScalarQuantizer.cpp? I want to see if Faiss SQ8 uses a uniform or non-uniform quantization. Also, how SQ8 in faiss determines the bin boundary at each dimension.

Thank you in advance for any future answer!