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- W3138836727 abstract "In this paper, the problem of query processing in spatial data streams is explored, with a focus on the spatial join operation. Although the spatial join has been utilized in many proposed centralized and distributed query processing strategies, for its application to spatial data streams the spatial join operation has received very little attention. One identified limitation with existing strategies is that a bounded region of space (i.e., spatial extent) from which the spatial objects are generated needs to be known in advance. However, this information may not be available. Therefore, two strategies for spatial data stream join processing are proposed where the spatial extent of the spatial object stream is not required to be known in advance. Both strategies estimate the common region that is shared by two or more spatial data streams in order to process the spatial join. An evaluation of both strategies includes a comparison with a recently proposed approach in which the spatial extent of the data set is known. Experimental results show that one of the strategies performs very well at estimating the common region of space using only incoming objects on the spatial data streams. Other limitations of this work are also identified." @default.
- W3138836727 created "2021-03-29" @default.
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- W3138836727 date "2021-03-01" @default.
- W3138836727 modified "2023-09-26" @default.
- W3138836727 title "Unbounded Spatial Data Stream Query Processing using Spatial Semijoins" @default.
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- W3138836727 doi "https://doi.org/10.5383/juspn.15.02.005" @default.
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