To solve such problems that a correct similarity cannot be obtained, a similarity between synonyms and between texts of different expressions cannot be calculated with accuracy, and further a similar text following the similarity of a text structure cannot be classified when a co-occurrence between unrelated words with each other exists in a text with a plurality of subjects, even though the similarity between documents and between the document and the retrieval key during retrieval is calculated on the basis of a co-occurrence of words in a text.
A syntax analyzing means performs a morphological analysis and a dependency analysis of a character string of a document from a document inputting means, a tree structure with syntax information creating means creates a tree structure with syntax information from the syntax analysis result, a parallel node adding means adds a parallel node with nodes having a parallel relation to the tree structure with syntax information defined as a child node to the tree structure with syntax information, a parallel node ordering means orders nodes under the added parallel node, the tree structure with syntax information is edited into a tree structure with syntax information of another document, and a distance calculating means calculates the edit distance.
HIRANO TAKASHI
| JP2004110161A | 2004-04-08 | |||
| JPH06162098A | 1994-06-10 | |||
| JPH04102171A | 1992-04-03 | |||
| JPH03161865A | 1991-07-11 | |||
| JP2002032374A | 2002-01-31 | |||
| JP2000148793A | 2000-05-30 | |||
| JP2004110161A | 2004-04-08 | |||
| JPH06162098A | 1994-06-10 | |||
| JPH04102171A | 1992-04-03 | |||
| JPH03161865A | 1991-07-11 | |||
| JP2002032374A | 2002-01-31 | |||
| JP2000148793A | 2000-05-30 |
CSNG201000460018; 板尾 要祐、外３名: '特徴的な意味内容を抽出する木構造マイニングのための日本語処理手法' 言語処理学会第１１回年次大会発表論文集 , 20050315, ｐ．７３-７６, 言語処理学会
JPN6013044815; 板尾 要祐、外３名: '特徴的な意味内容を抽出する木構造マイニングのための日本語処理手法' 言語処理学会第１１回年次大会発表論文集 , 20050315, ｐ．７３-７６, 言語処理学会
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida