An Adaptive Method for Incremental Updating of Vector Data

Abstract

To maintain data consistency and eliminate the spatial conflicts brought by spatial database updating,an adaptive method for incremental vector data updating is proposed.Based on the matching of correspondent objects,a change-object detection and incremental updating method is discussed.Considering the constraint of spatial distance,semantic similarity and topology consistency,it is proposed a calculated method for edge matching evaluation.An adaptive edge matching strategy is also designed to maintain the consistency of spatial data.The rule-based detection and manipulation of spatial conflicts is also discussed.Topographical data are used to verify the practicality and efficiency of the method.

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