情報検索

じょうほうけんさく

noun

•

information retrieval(computer term)

情	feelings, emotion, passion, sympathy, circumstances, facts
報	report, news, reward, retribution
検	examination, investigate
索	cord, rope, searching, inquiring

じょうほうけんさく

こうりつ

はか

しゃくど

、

さいげんりつ

てきごうりつ

As yardsticks to measure the effectiveness of information retrieval there exist those called 'recall ratio' and 'precision ratio'