| 摘要 |
PROBLEM TO BE SOLVED: To retrieve a route which reflects the values of an operator by adapting an index for numerically showing the values of the operator. SOLUTION: This navigation device comprises a value area forming means for forming a correlation function, on the basis of the index showing the values of the operator and setting a value area, based on the correlation function within an index space having the index as coordinate; a retrieval means for retrieving routes of a vehicle; and a value-adapted route extracting means for extracting the route, the corresponding point in the index space of which is present in the value area from the routes. |
