| 摘要 |
PROBLEM TO BE SOLVED: To extract a corresponding candidate couple of identification information between data managed by different systems.SOLUTION: An information processing apparatus comprises a storage section and a corresponding candidate couple narrowing-down section. The storage section stores an included-side history table and an including-side history table. In the included-side history table, a first entity ID of a first entity is made correspondent to a first information item indicating the tense where a first event occurs. In the including-side history table, a second entity ID of a second entity including the first entity is made correspondent to a second information item indicating the tense where a second event occurs, the second event being an event including the first event in the same entity. The corresponding candidate couple narrowing-down section divides the first information item and the second information item into divided sections ranged in the same tense, determining a state recording the number of kinds of the tense of the occurrence for each of the divided sections, and extracts a combination of the first entity ID and the second entity ID, in which the second event relating to the second entity ID includes the first event relating to the first entity ID, from a result of the determination. |
