| 摘要 |
<P>PROBLEM TO BE SOLVED: To much more appropriately extract a series item group. <P>SOLUTION: The series item group extraction system includes: meta data storage means 11 for storing the meta data of a plurality of items; log storage means 15 for storing an item use history; similarity calculation means 13 for calculating inter-item similarity by using the meta data; continuity calculation means 16 for grouping item groups which are highly likely to be continuously used by using the item use history, and for calculating the continuity of the item groups of each group; and item group extraction means 18 for calculating the similarity of the item groups belonging to each group by using the inter-item similarity, and for extracting the item groups belonging to the group whose similarity is larger than a first threshold, and whose continuity is larger than a second threshold as a series item group. <P>COPYRIGHT: (C)2013,JPO&INPIT |
