641 search results - page 37 / 129 » Temporal Queries in OLAP |
206
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SIGMOD
2006
ACM
16 years 4 months ago
2006
ACM
Although it has been acknowledged for many years that querying and updating time-varying information using standard (i.e., non-temporal) SQL is a challenging task, the proposed te...
161
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SECON
2008
IEEE
15 years 10 months ago
2008
IEEE
Sensor networks will shortly consist of globally deployed sensors providing real-time geo-centric information to users. Particularly, users with mobile devices will issue ad-hoc q...
128
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LICS
2005
IEEE
15 years 9 months ago
2005
IEEE
We consider unranked trees, that have become an active subject of study recently due to XML applications, and characterize commonly used fragments of firstorder (FO) and monadic ...
148
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WWW
2003
ACM
15 years 9 months ago
2003
ACM
Support for temporal text-containment queries (query for all versions of documents that contained one or more particular words at a particular time t) is of interest in a number of...
211
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ICDT
2009
ACM
16 years 4 months ago
2009
ACM
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...