549 search results - page 31 / 110 » Data Expiration and Aggregate Queries |
DOLAP
2000
ACM
15 years 4 months ago
2000
ACM
A multidimensional database can be seen as a collection of multidimensional cubes, from which information is usually extracted by aggregation; aggregated data can be calculated ei...
120
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ICWN
2008
15 years 1 months ago
2008
Energy efficient operations are essential to increase the lifetime of wireless sensor network. A clustering-based protocol is one approach that reduces energy by a data aggregation...
111
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WSDM
2012
ACM
13 years 7 months ago
2012
ACM
Many vertical search tasks such as local search focus on specific domains. The meaning of relevance in these verticals is domain-specific and usually consists of multiple well-d...
CCGRID
2004
IEEE
15 years 3 months ago
2004
IEEE
This paper is concerned with efficient querying of very large multi-resolution datasets on storage and compute clusters. We present a suite of services that support storage, index...
VLDB
2004
ACM
15 years 5 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...