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Navigation of the Internet with spatial databases
Proceedings 1999 International Symposium on Database Applications in Non-Traditional Environments (DANTE'99) (Cat. No.PR00496), 2003Most Internet search engines are keyword based. They are not efficient for the queries where geographical location is important, such as finding hotels close to a place of interest. A natural interface for spatial searching is a map, which can be used not only to display locations of search results but also to assist forming search conditions.
Joseph D. Yates, Xiaofang Zhou 0001
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Spatially distributed databases on sensors
Proceedings of the 8th ACM international symposium on Advances in geographic information systems, 2000We consider the problem of data dissemination in a sensor network. First we introduce a cost model for data dissemination in such networks. The model quantifies the tradeoff between the inconsistency of the data, and its transmission cost; the transmission cost is given in terms of energy and bandwidth.
Bo Xu 0001 +2 more
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Spatial database access methods
ACM SIGMOD Record, 1991In the discussion of research issues in spatial databases (SIGMOD Record vol. 19, no. 4, Dec 1990) we stated the need for a robust framework for analytical comparison of a broad range of spatial access methods. The utility of such a comparison, even of very closely related access methods, was shown in [FALO87]. A necessary precondition for a meaningful
Betty Salzberg, David B. Lomet
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Concurrency control of spatial join on spatial database
Fourth Annual ACIS International Conference on Computer and Information Science (ICIS'05), 2005For the process of spatial data, in addition to the basic operations of insertion, deletion, update, and search, there are some special operations such as nearest neighbor search, spatial join, etc. Hung et al. proposed an algorithm based on an R-tree to perform the operation of spatial join for spatial objects. However, this algorithm is only suitable
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Topological Relations in Spatial Databases
2002Various models for the representation of topological relations have been developed. The aim of this chapter is to propose a comprehensive view of state-of-the-art models for topological relations in spatial databases. A prominent role is assumed by the CBM (calculus-based method), which offers a small set of topological relations with high ...
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On the Estimation of Spatial Database Performances.
2014We discuss the results of experiments on spatial databases, aiming to empirically derive parameters for estimating disk occupancy and performances since from the conceptual stages of the design process. This opens the way to the definition of an estimation methodology, which should let a designer evaluate the quality of alternative design choices based
POLESE, Giuseppe +1 more
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