March 6, 2025
Semantic search, leveled up: now with native match, knn and sparse_vector support
Semantic text search becomes even more powerful, with native support for match, knn and sparse_vector queries. This allows us to keep the simplicity of the semantic query while offering the flexibility of the Elasticsearch query DSL.


February 27, 2025
Filtered HNSW search, fast mode
Explore the improvements we have made for HNSW vector search in Apache Lucene through our ACORN-1 algorithm implementation.

February 24, 2025
Understanding sparse vector embeddings with trained ML models
Learn about sparse vector embeddings, understand what they do/mean, and how to implement semantic search with them.

February 17, 2025
Elasticsearch hybrid search
Learn about hybrid search, the types of hybrid search queries Elasticsearch supports, and how to craft them.

February 13, 2025
Unleashing your metadata: Self-querying retrievers with Elasticsearch
Discover how to utilize “self-quering” retrievers with Elasticsearch to increase the relevance of your Semantic search with structured filters.

February 10, 2025
How to set up vector search in Elasticsearch
Learn how to set up vector search and execute k-NN searches in Elasticsearch.

February 6, 2025
A quick introduction to vector search
This article is the first in a series of three that will dive into the intricacies of vector search, also known as semantic search, and how it is implemented in Elasticsearch.

January 21, 2025
High Quality RAG with Aryn DocPrep, DocParse and Elasticsearch vector database
Learn how to achieve high-quality RAG with effective data preparation using Aryn.ai DocParse, DocPrep, and Elasticsearch vector database.

January 9, 2025
Improving e-commerce search with query profiles in Elastic
Query profiles tackle semantic search challenges in e-commerce. This blog demonstrates how to enhance e-commerce search using query profiles in Elastic.