DEVICE AND METHOD FOR CREATING INFORMATION RETRIEVAL DATABASE, PORTABLE INFORMATION TERMINAL, INFORMATION RETRIEVAL DATABASE CREATION PROGRAM, AND PORTABLE INFORMATION TERMINAL CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To easily and surely retrieve information most suitable and desirable for a user individually.;SOLUTION: A positional information creation update part 1 associates positional information with a location name to create and update a positional information table 2 and a location name table 5. An event information creation update part 3 associate an event with the location name to create and update a schedule management event information table 4 and the location name table 5. A positional information message relation creation part 8 associates a message with positional information in communication to create a positional information ID candidate list 9. A positional information event information relation creation part 6 associates the positional information with the event to create a message management event information table 7. An event information message relation creation part 10 associates the event with the message to create a message table 11. When an event name is inputted by a user, an information retrieval part 12 retrieves a message matching the event from the message management table 7 and the message table 11.;COPYRIGHT: (C)2008,JPO&INPIT