FibQuant is a universal fixed-rate vector quantizer for KV-cache compression that uses a radial-angular codebook matched to the spherical-Beta source after Haar rotation and strictly outperforms scalar quantization at matched rates.
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FibQuant: Universal Vector Quantization for Random-Access KV-Cache Compression
FibQuant is a universal fixed-rate vector quantizer for KV-cache compression that uses a radial-angular codebook matched to the spherical-Beta source after Haar rotation and strictly outperforms scalar quantization at matched rates.