DongHong Liu

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Planning systems can be put into two classes: domain-independent planners and domain-dependent planners. Domain-dependent planners concentrate on using domain heuristics to encourage eecient search. For a domain-dependent planner, the domain contains heuristics algorithm for the speciied problem to make an eecient planning, so the planner might not(More)
In order to increase the efficiency of raster image storage, a block file directory tree (BFDT) framework is introduced in this paper as a new index structure of raster blocks. Through changing the container of raster blocks from the database to the file system, and depends on the file system's storage advantage of high efficiency, the BFDT framework(More)
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