PURPOSE:To provide the Japanese language morpheme analysis system improved in analysis efficiency by decreasing the number of times of dictionary retrieval and improved in analysis accuracy by utilizing a word-ending conjugation infor mation. CONSTITUTION:This Japanese language morpheme analysis system is provided with a word-ending conjugation part 3 to deform it into the index of a dictionary registration form by applying the word-ending of segmented character string, and a connection judge part 4 to reject an attention morpheme judged to be connection-disenable by judging the possibility of connection between the attention morpheme to be identified corresponding to the segmented character string and a morpheme identified just before by utilizing the word-ending application information estimated in the case of conjugating the word-ending of the character string by the word-ending conjugation part 3 before the dictionary retrieval.
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