METHOD, APPARATUS AND PROGRAM FOR DETECTING CHANGE IN GEOGRAPHICAL ATTRIBUTE

METHOD, APPARATUS AND PROGRAM FOR DETECTING CHANGE IN GEOGRAPHICAL ATTRIBUTE

PROBLEM TO BE SOLVED: To detect a geographical attribute whose update is necessary and to keep the geographical attribute in a latest state at low cost.SOLUTION: A change detection part 11 detects a change in a value of a geographical attribute item, a related change detection part 12 retrieves rela...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUWANO HIDEKATSU, AKUTSU AKIHITO, MAEBASHI KARIN, TANIGUCHI YUKINOBU
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To detect a geographical attribute whose update is necessary and to keep the geographical attribute in a latest state at low cost.SOLUTION: A change detection part 11 detects a change in a value of a geographical attribute item, a related change detection part 12 retrieves relation between geographical attribute items including the geographical item whose change is detected from an item relation storage part 13 to detect a geographical attribute item whose change is predicted. Consequently, a geographical attribute item belonging to a difficult update group whose inspection is necessary can be grasped and the geographical attribute can be kept in the latest state.