ELSER – Elastic Learned Sparse EncodeR | Machine Learning in the Elastic Stack [8.13] | Elastic

Elastic Learned Sparse EncodeR - or ELSER - is a retrieval model trained by Elastic that enables you to perform semantic search to retrieve more relevant search results. This search type provides you search results based on contextual meaning and user intent, rather than exact keyword matches. ELSER is an out-of-domain model which means it does not require fine-tuning on your own data, making it a