RELEVANCE
Personalized search, unparalleled relevance
With powerful search relevance, Elastic® provides all the tools you need to build AI-powered search experiences that help users find exactly what they need. The Elasticsearch Relevance Engine™, state of the art machine learning (ML), and relevance tuning tools help you analyze, optimize, and personalize even further.
Learn about cutting-edge methods for hybrid search and advanced reranking strategies such as Learning to Rank (LTR) and cross-encoders.
Watch webinarSee how easy it is to get started with setting up the Elasticsearch Relevance Engine.
See quick start videoGet an introduction to Elasticsearch's advanced relevance ranking toolbox.
Watch webinarAI-POWERED RELEVANCE
Developer tools for generative AI and semantic search
Create AI search applications and integrate with large language models with the Elasticsearch Relevance Engine. Use industry leading advanced relevance ranking features like BM25F for hybrid search, native vector search, Elastic's proprietary ML model for semantic search across domains, and hybrid ranking using reciprocal rank fusion (RRF) to enter a new era of contextual relevance.
ELSER AND INFERENCE API
Model selection made easy
Accelerate your retrieval augmented generation (RAG) implementations with the Elastic Learned Sparse EncodeR (ELSER) as a reliable starting point. Additionally, Elastic's Inference API streamlines code and multi-cloud inference management. Whether you use ELSER or embeddings from OpenAI, Hugging Face, Cohere, or others for RAG workloads, one API call ensures clean code for managing hybrid inference deployment.
Reranking
The most relevant search engine for RAG
Rerankers apply machine learning models to fine-tune your search results and bring the most relevant results to the top based on user preferences and signals. Elasticsearch supports various ranking and reranking techniques. Semantic reranking uses machine learning to improve result relevance based on query similarity. Learning to Rank (LTR) allows advanced users to create custom ranking functions to match their needs.
QUERY RULES AND SYNONYMS API
Optimize search performance
Provide customizable instructions through metadata for more control of search results in response to targeted queries. Query rules in Elasticsearch help you promote high-priority content to end users for specific use cases. Simplify organizing and updating related words for website searches using the synonyms management API.
Fine-tune your search relevance model
Elasticsearch query language supports advanced search techniques (full-text, sparse/dense vector search), along with hybrid search using reciprocal rank fusion (RRF). Combine this with filtering, boosting, and rescoring methods, and you're able to further fine-tune your search relevance model, customizing to your needs.
HYPER-RELEVANCE
Harness the power of machine learning
Whether you're adding new concepts to broaden the impact of your search or seeking new ways to improve search accuracy, machine learning can augment search and business insights to enhance your search applications and customer experience. Improve semantic relevance with generative AI, vector search, support for NLP transformer models, and third-party model management.
