Spatiotemporal Indexing Mechanism Based on Sub-net in Layers
Lin Ji Li · 2008
Indexing technology is the key part in database system.The spatiotemporal objects have been taken into account in existing spatiotemporal indexing methods,which are short of explicit spatiotemporal relationship.Hence,it reduces the practicability of the spatiotemporal data model based on graph.In this paper,a new indexing mechanism,based on sub-net in layer,was presented,where the spatiotemporal objects and relationship were both indexing items.Thus,the efficiency was improved based on the relation between cause and effect.