elasticsearch/docs/reference/query-languages/query-dsl/query-dsl-boosting-query.md

---

navigation_title: "Boosting" mapped_pages:

• https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-boosting-query.html ---

Boosting query [query-dsl-boosting-query]

Returns documents matching a positive query while reducing the relevance score of documents that also match a negative query.

You can use the boosting query to demote certain documents without excluding them from the search results.

Example request [boosting-query-ex-request]

GET /_search
{
  "query": {
    "boosting": {
      "positive": {
        "term": {
          "text": "apple"
        }
      },
      "negative": {
        "term": {
          "text": "pie tart fruit crumble tree"
        }
      },
      "negative_boost": 0.5
    }
  }
}

Top-level parameters for boosting [boosting-top-level-params]

positive : (Required, query object) Query you wish to run. Any returned documents must match this query.

negative : (Required, query object) Query used to decrease the relevance score of matching documents.

If a returned document matches the positive query and this query, the boosting query calculates the final relevance score for the document as follows:

1. Take the original relevance score from the positive query.
2. Multiply the score by the negative_boost value.

negative_boost : (Required, float) Floating point number between 0 and 1.0 used to decrease the relevance scores of documents matching the negative query.