| 摘要 |
PROBLEM TO BE SOLVED: To enable a navigation device for performing search by changing an evaluation function corresponding to a searching condition, to learn so that a proper evaluation function can be selected. SOLUTION: This navigation device 1 has a weighing factor table storage part 12 for storing a plurality of weighing factor tables for calculating cost of a route. When performing route search, a table selection part 26 selects one weighing factor table corresponding to a route searching condition by using a table selection model, and performs route search by using the selected weighing factor table. The navigation device 1 is equipped with a learning propriety determination part 32 for determining so that, in the case where the number of times of passing a link constituting a vehicle traveling route in the past is smaller than a prescribed reference value, when a vehicle travels from a starting place to a destination, learning of the table selection model is performed, and that, in the case where the number of times of passing the link constituting the traveling route in the past is larger than the prescribed reference value, learning of the table selection model is not performed. COPYRIGHT: (C)2009,JPO&INPIT |
