2674 search results - page 392 / 535 » Data Models and Query Languages for Spatial Databases |
177
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MOBISYS
2008
ACM
16 years 6 months ago
2008
ACM
Cascadia is a system that provides RFID-based pervasive computing applications with an infrastructure for specifying, extracting and managing meaningful high-level events from raw...
324
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GIS
2003
ACM
16 years 7 months ago
2003
ACM
This paper introduces an approach for closer integration of selforganizing maps into the visualization of spatio-temporal phenomena in GIS. It is proposed to provide a more explic...
186
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PODS
2008
ACM
16 years 6 months ago
2008
ACM
We consider the navigational core of XPath, extended with two operators: the Kleene star for taking the transitive closure of path expressions, and a subtree relativisation operat...
150
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WWW
2006
ACM
16 years 7 months ago
2006
ACM
Structural summaries are data structures that preserve all structural features of XML documents in a compact form. We investigate the applicability of the most popular summaries a...
161
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AIIA
2007
Springer
16 years 19 days ago
2007
Springer
In this paper we compare four selection strategies in evolutionary optimization of information retrieval (IR) in a question answering setting. The IR index has been augmented by li...