549 search results - page 72 / 110 » Data Expiration and Aggregate Queries |
103
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ICDE
2007
IEEE
15 years 6 months ago
2007
IEEE
We consider the problem of semantic load shedding for continuous queries containing window joins on multiple data streams and propose a robust approach that is effective with the ...
WEBDB
2005
Springer
15 years 5 months ago
2005
Springer
In this paper, we describe the design and initial implementation of a geographic search engine prototype for Germany, based on a large crawl of the de domain. Geographic search en...
EDBT
2009
ACM
15 years 4 months ago
2009
ACM
Decision Support Systems (DSS) are information systems that support decision making processes. In many scenarios these systems are built on top of data managed by DBMSs and make e...
184
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SIGMOD
2009
ACM
16 years 2 days ago
2009
ACM
A large number of online databases are hidden behind the web. Users to these systems can form queries through web forms to retrieve a small sample of the database. Sampling such h...
103
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SIGMOD
2010
ACM
15 years 4 months ago
2010
ACM
Online aggregation is a promising solution to achieving fast early responses for interactive ad-hoc queries that compute aggregates on a large amount of data. Essential to the suc...