| 情報検索の効率を測る尺度として、再現率と適合率というものがある。 | As yardsticks to measure the effectiveness of information retrieval there exist those called 'recall ratio' and 'precision ratio'. |
| 適合率とは取り出した記事のうち、どの程度の記事が検索条件に合っているかを示す指標です。 | The precision ratio is an index that indicates how many articles meet the search criteria out of all of the articles retrieved. |
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