To provide a similarity evaluation device and program, capable of improving reliability of a similarity evaluation result by considering characteristics of a whole Japanese sentence to be compared.
A tree structure generation part 2 syntactically analyzes an input Japanese sentence and a target Japanese sentence and generates respective tree structures. A partial structure generation part 3 generates partial structures from the tree structures, respectively. A partial structure evaluation part 4 calculates a syntactic similarity between the partial structures and a word similarity between the partial structures, and calculates a similarity between the partial structures based on the syntactic similarity and the word similarity. A sentence evaluation part 5 calculates a similarity between the input Japanese sentence and the target Japanese sentence based on the similarity between the partial structures.
COPYRIGHT: (C)2008,JPO&INPIT
MIURA KIKUKA
SUMIYOSHI HIDEKI
YAGI NOBUYUKI
Shiro Fujitani
Kiyoshi Kuruma
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