Author

Nico Hezel

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Preprint Jul 2026

Fast and Efficient Approximate Nearest Neighbor Search for High-Dimensional LLM Embeddings

This paper addresses both $k-Nearest Neighbor Graph (kNNG) construction on 1024-dimensional BGE-M3 embeddings and Maximum Inner Product Search (MIPS) on unnormalized Llama-3.2-8B features, and introduces a 1D presorting mechanism via Fast Linear Assignment Sorting (FLAS) prior to graph construction.

Nico Hezel, Kai Barthel, Bruno Schilling et al. · 0 citations