FAst Lookups of Cosine and Other Nearest Neighbors (based on fast locality-sensitive hashing)

C library to compute the Hamming weight of arrays

A high-performance hash-table for network packet-processing applications (compatible with DPDK)

Falconn++ is a locality-sensitive filtering (LSF) approach, built on top of cross-polytope LSH (FalconnLib) to answer approximate nearest neighbor search with inner product.

Scalable DBSCAN and OPTICS for clustering high-dimensional datasets using random projections