Function score query | Reference

The function_score allows you to modify the score of documents that are retrieved by a query. This can be useful if, for example, a score function is computationally expensive and it is sufficient to compute the score on a filtered set of documents. To use function_score, the user has to define a query and one or more functions, that compute a new score for each document returned by the query. fun

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スコアの計算むずかしいのう。