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Benjamin Trent

Principal Developer II

About the author

Benjamin Trent is a Lucene committer and member of the project management committee at The Apache Software Foundation and a software engineer at Elastic, where he works on improving Elasticsearch.

Author’s articles

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.

Looking back: Elastic's vector search improvements in Elasticsearch & Lucene

Looking back: Elastic's vector search improvements in Elasticsearch & Lucene

Looking back at Elastic's vector search innovations in Elasticsearch and Lucene.

Bit vectors in Elasticsearch

July 17, 2024

Bit vectors in Elasticsearch

Discover what are bit vectors, their practical implications and how to use them in Elasticsearch.

Making Elasticsearch and Lucene the best vector database: up to 8x faster and 32x efficient

Making Elasticsearch and Lucene the best vector database: up to 8x faster and 32x efficient

Discover the recent enhancements and optimizations that notably improve vector search performance in Elasticsearch & Lucene vector database.

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.

Scalar quantization optimized for vector databases

April 25, 2024

Scalar quantization optimized for vector databases

Optimizing scalar quantization for the vector database use case allows us to achieve significantly better performance for the same retrieval quality at high compression ratios.

Introducing kNN Query: An expert way to do kNN search

December 7, 2023

Introducing kNN Query: An expert way to do kNN search

Explore how the kNN query in Elasticsearch can be used and how it differs from top-level kNN search, including examples.

Understanding scalar quantization in Lucene

November 11, 2023

Understanding scalar quantization in Lucene

Explore how Elastic introduced scalar quantization into Lucene, including automatic byte quantization, quantization per segment & performance insights.

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