Synonyms
Imprecise spatial databases; Probabilistic spatial databases
Definition
Spatial data are prevalent in location-based services (LBS), sensor networks, and RFID monitoring systems. Data readings collected in these applications are often imprecise. The uncertainty in the data can arise from multiple sources, including measurement errors due to the sensing instrument and discrete sampling of the measurements. It is often important to record the imprecision and also to take it into account when processing the spatial data. The challenges of handling the uncertainty in spatial data include modeling, semantics, query operators and types, efficient execution, and user interfaces. Probabilistic models have been proposed for handling the uncertainty. We call the database system that manages uncertainty of spatial data a probabilistic spatial database.
Historical Background
Data uncertainty is an inherent property in applications that deal with spatial data. In the Global Positioning...
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Cheng, R. (2018). Uncertain Spatial Data Management. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_80742
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DOI: https://doi.org/10.1007/978-1-4614-8265-9_80742
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