fact box testing title
In order to understand the remainder of this blog, it is helpful to have a basic understanding of how Elasticsearch calculates a score that is used to order the documents returned by a query.
Before scoring documents, Elasticsearch first reduces the set of candidate documents by applying a boolean test that only includes documents that match the query. A score is then calculated for each document in this set, and this score determines how the documents are ordered. The score represents how relevant a given document is for a specific query. The default scoring algorithm used by Elasticsearch is BM25. There are three main factors that determine a document’s score:
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