DEVICE, METHOD AND PROGRAM FOR EXTRACTING INTRINSIC EXPRESSION, AND RECORDING MEDIUM WITH THE PROGRAM RECORDED THEREON

摘要

PROBLEM TO BE SOLVED: To reduce a calculation load by reducing candidates with low likelihood from morphological candidates with intrinsic expression at each position of an input sentence.

SOLUTION: An intrinsic expression by types of part of speech and word appearance probability storing part 262 for preliminarily storing appearance probabilities (likelihood) in an intrinsic expression state which have a corresponding type of part of speech and word with respect to the type of part of speech and word of a morpheme, and an intrinsic expression by next morphemes appearance probability storing part 263 for preliminarily recording appearance probabilities (likelihood) in an intrinsic expression state which a preceding morpheme has under the condition that other morphemes follow the preceding morpheme with respect to the preceding morpheme are provided, and an appearance probability of a morpheme candidate with an intrinsic expression is calculated and narrowed down on the basis of each appearance probability.

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