| 摘要 |
PROBLEM TO BE SOLVED: To determine the distance between documents or document sets from the weight of a word and to conversely calculate the weight of the word from the distance between the documents or the document sets. SOLUTION: In a word weight storage part 1, a distance between documents storage part 2, a distance between document group storage part 3, each of the weight of the word for every document, the distance between documents and the distance between the document groups are stored. A word weight changing part 4 changes the weight of the word, the distance between the documents and the distance between the document groups, in accordance with the changing instruction of the weight of the word. A distance between documents changing part 5 calculates the weight of the word and changes the weight and changes the distance between documents and the distance between document groups, in accordance with the changing instruction of the distance between documents. A distance between document groups changing part 6 calculates the weight of the word and the distance between documents and changes the distance with the distance between the document groups, in accordance with the changing instruction of the distance between document groups. |
