NATURAL LANGUAGE PROCESSING DEVICE, NATURAL LANGUAGE PROCESSING METHOD AND NATURAL LANGUAGE PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a natural language processing device which generates an analyzer appropriate for a document of an analysis object, taking into consideration a language and a domain of the document.SOLUTION: A natural language processing device 100 comprises parallel translation storage means, parallel translation retrieval means, word extraction means, correct answer generation means and analyzer generation means. The parallel translation storage means stores a plurality of parallel translation documents composed of a document of an unknown language and a document of one or a plurality of known languages, and its domain. The parallel translation retrieval means designates the domain and retrieves a parallel translation document from the parallel translation storage means. The word extraction means extracts a word pair associating a word of an unknown language with a word of a known language from the parallel translation document retrieved by the parallel translation retrieval means. The correct answer generation means estimates an analysis result of the document of the unknown language in the retrieved parallel translation document using the word pair and an analysis result of the document of the known language in the retrieved parallel translation document. The analyzer generation means generates an analyzer of the unknown language using the analysis result of the document of the unknown language.