MP

Mike Pellegrini

Principal Software Engineer I

Author's articles

Hybrid search without the headache: simplifying hybrid search with retrievers

November 27, 2025

Hybrid search without the headache: simplifying hybrid search with retrievers

Explore how to simplify hybrid search in Elasticsearch with a multi-field query format for linear and RRF retrievers, and create queries with no previous knowledge about your Elasticsearch index.

Beyond similar names: How Elasticsearch semantic text exceeds OpenSearch semantic field in simplicity, efficiency, and integration

August 12, 2025

Beyond similar names: How Elasticsearch semantic text exceeds OpenSearch semantic field in simplicity, efficiency, and integration

Comparing Elasticsearch semantic text and OpenSearch semantic field in terms of simplicity, configurability, and efficiency.

Semantic text in Elasticsearch: Simpler, better, leaner, stronger

March 13, 2025

Semantic text in Elasticsearch: Simpler, better, leaner, stronger

Our latest semantic_text iteration brings a host of improvements. In addition to streamlining representation in _source, benefits include reduced verbosity, more efficient disk utilization, and better integration with other Elasticsearch features. You can now use highlighting to retrieve the chunks most relevant to your query. And perhaps best of all, it is now a generally available (GA) feature!

Elasticsearch new semantic_text mapping: Simplifying semantic search

Elasticsearch new semantic_text mapping: Simplifying semantic search

Learn how to use the new semantic_text field type and semantic query for simplifying semantic search in Elasticsearch.

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