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A single-origin multiple-destination route (SOMDR)query is to retrieve the minimum-cost routes, each of which starts from the same origin and ends at one of a set of destinations. The query is typically used for route assignment in transportation networks in GEOProcessing. In this paper,LU, a fundamental best first search algorithm and framework,is proposed to process SOMDR queries in a graph. It...
A Category Sequence Traversal Query (CSTQ) is a new type of category based query that determines the minimum-cost path with a predefined origin-destination pair, traversing at least a single selection from each of a set of categories in a specified order. CSTQ has distinct applications in transportation trip planning and other potential applications whenever a workflow exists to traverse a set of...
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