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The recent advances in the infrastructure of Geographic Information Systems (GIS), and the proliferation of GPS technology, have resulted in the abundance of geodata in the form of sequences of points of interest (POIs), waypoints, etc. We refer to sets of such sequences as route collections. In this work, we consider path queries on frequently updated route collections: given a route collection and...
As XML gradually becomes the standard of the data exchange and expression for Internet, how to accurately access the data stored in the XML documents has already been a crucial problem to be solved. At first, the paper illustrates the structure of Patricia Tries and gives the search method of Patricia Tries based on analyzing the difference between Tries tree with Patricia Tries. Afterwards, the dictionary-based...
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