This is a cache of https://www.elastic.co/search-labs/blog/category/lucene. It is a snapshot of the page at 2024-12-23T00:40:54.465+0000.
Lucene - Elasticsearch Labs

Lucene

December 4, 2024

Smokin' fast BBQ with hardware accelerated SIMD instructions

How we optimized vector comparisons in BBQ with hardware accelerated SIMD (Single Instruction Multiple Data) instructions.

Smokin' fast BBQ with hardware accelerated SIMD instructions
Better Binary Quantization vs. Product Quantization

November 18, 2024

Better Binary Quantization vs. Product Quantization

Why we chose to spend time working on better binary quantization instead of product quantization in Lucene and Elasticsearch.

Better Binary Quantization (BBQ) in Lucene and Elasticsearch

November 11, 2024

Better Binary Quantization (BBQ) in Lucene and Elasticsearch

How Better Binary Quantization works in Lucene and Elasticsearch.

RaBitQ binary quantization 101

October 22, 2024

RaBitQ binary quantization 101

Understand the most critical components of RaBitQ binary quantization, how it works and its benefits. This guide also covers the math behind the quantization and examples.

Apache Lucene 10 is out! Improvements to Lucene's hardware efficiency & more

October 14, 2024

Apache Lucene 10 is out! Improvements to Lucene's hardware efficiency & more

Apache Lucene 10 was just released, with a focus on hardware efficiency! Check out the main release highlights.

Elasticsearch vs. OpenSearch: Vector Search Performance Comparison

Elasticsearch vs. OpenSearch: Vector Search Performance Comparison

Elasticsearch is out-of-the-box 2x–12x faster than OpenSearch for vector search

Understanding Int4 scalar quantization in Lucene

April 25, 2024

Understanding Int4 scalar quantization in Lucene

This blog explains how int4 quantization works in Lucene, how it lines up, and the benefits of using int4 quantization.

Making Lucene faster with vectorization and FFI/madvise

April 17, 2024

Making Lucene faster with vectorization and FFI/madvise

Discover how modern Java features, including vectorization and FFI/madvise, are speeding up Lucene's performance.

Speeding Up Multi-graph Vector Search

March 12, 2024

Speeding Up Multi-graph Vector Search

Explore multi-graph vector search in Lucene and discover how sharing information between segment searches enhances search speed.

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