| 摘要 |
PROBLEM TO BE SOLVED: To display the preference of a user and also to easily change the user's preference by changing the element value of a GP matrix based on the display state changed by a display state changing means. SOLUTION: A GP matrix includes the keywords used for acquisition of document vectors on a row and the user members on a column respectively. A CPU 111 acquires a preference document vector from every element of a GP vector and the elements of a document vector. Then the CPU 111 divides the elements of the preference document into the fields, calculates the field-based importance by totalizing the elements in every field and then shows a field-based vector using the field-based importance as an element on the three-dimensional coordinates to display it on a display device 14. In such a state where the field- based vector is visualized, the display state of the field-based vector can be changed. When the display state is changed, the CPU 111 acquires every element value from the display state of a newly shifted field-based vector and rewrites the field-based importance. |
