Efficient top/bottom-k fraction estimation in spatial databases using bounded main memory
Tsinghua Science and Technology(2022)
摘要
Spatial databases store objects with their locations and certain types of attached items. A variety of modern applications have been developed by leveraging the utilization of locations and items in spatial objects, such as searching points of interest, hot topics, or users' attitude in specified spatial regions. In many scenarios, the high and low-frequency items in a spatial region are worth not...
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关键词
exploratory analytic,top-k items,bottom-k items,spatial database
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