PPROBLEM TO BE SOLVED: To provide a correction candidate obtaining device, a correction candidate obtaining system, a correction candidate obtaining method, and a correction candidate obtaining program which can obtain a candidate of correction without manually giving an instance of correction, a correction rule, etc. PSOLUTION: An unknown word extraction section 40 extracts an unknown word and a sentence including the unknown word. A retrieval section 60 generates a retrieval sentence with the unknown word as a wildcard, and obtains the correction candidate from a corpus storage section 50 based on the retrieval sentence. A correction rule generation section 70 generates a correction rule based on a retrieval result of the retrieval section 60. A correction rule evaluation section 90 performs the scoring of the correction rule which is generated by the correction rule generation section 70. PCOPYRIGHT: (C)2011,JPO&INPIT
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