Ctrip Technology
Jun 29, 2017 · Backend Development
Understanding Elasticsearch Scoring: Lucene Scoring Functions, Query Boosting, and Function Score Queries
This article explains how Elasticsearch computes relevance scores using Lucene's practical scoring formula, term frequency, inverse document frequency, field-length norms, and query normalization, and demonstrates query-time boosting, constant_score, function_score, decay functions, and script_score with practical DSL examples.
ElasticsearchLuceneQuery Boosting
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