2099 search results - page 135 / 420 » Similarity for Conceptual Querying |
104
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SSD
1995
Springer
15 years 5 months ago
1995
Springer
We present a data structure used to represent planar spatial databases in the topological data model. Conceptually, such databases consist of points, lines between these points, an...
214
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GIS
2009
ACM
16 years 2 months ago
2009
ACM
With the recent advancements and wide usage of location detection devices, large quantities of data are collected by GPS and cellular technologies in the form of trajectories. Whi...
131
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IJCNLP
2004
Springer
15 years 7 months ago
2004
Springer
In this paper, a series of window-based methods is proposed for information retrieval. Compared with traditional tf-idf model, our approaches are based on two new key notions. The ...
188
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Publication
Spatio-temporal data streams that are generated from mobile stream sources (e.g., mobile sensors) experience similar environmental conditions that result in distinct phenomena. Sev...
192
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VLDB
2007
ACM
16 years 1 months ago
2007
ACM
This paper focuses on the problem of improving distributed query throughput of the RDBMS-based data integration system that has to inherit the query execution model of the underly...