/plushcap/analysis/weaviate/weaviate-binary-quantization

32x Reduced Memory Usage With Binary Quantization

What's this blog post about?

Binary Quantization (BQ) is a vector compression algorithm that reduces memory requirements while trading off retrieval accuracy. It simplifies vector encoding by retaining only their directionality, with each dimension encoded as a single bit indicating whether it's positive or negative. This technique works well for high-dimensional vectors and can significantly reduce the amount of space required to store them. BQ also enables faster distance calculations between compressed binary vectors using bitwise operations. However, its effectiveness depends on data distribution and dimensionality.

Company
Weaviate

Date published
April 2, 2024

Author(s)
Abdel Rodriguez, Zain Hasan

Word count
3432

Hacker News points
2

Language
English


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