549 search results - page 95 / 110 » Data Expiration and Aggregate Queries |
116
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MASS
2010
14 years 9 months ago
2010
Traffic congestion is a very serious problem in large cities. With the number of vehicles increasing rapidly, especially in cities whose economy is booming, the situation is gettin...
IDEAS
2000
IEEE
15 years 4 months ago
2000
IEEE
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
113
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WIDM
1999
ACM
15 years 4 months ago
1999
ACM
Recent work on information integration has yielded novel and efficient solutions for gathering data from the World Wide Web. However, there has been little attention given to the ...
168
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ICDE
2006
IEEE
16 years 1 months ago
2006
IEEE
Web-database systems are nowadays an integral part of everybody's life, with applications ranging from monitoring/trading stock portfolios, to personalized blog aggregation a...
SSDBM
2000
IEEE
15 years 4 months ago
2000
IEEE
In implementations of non-standard database systems, large objects are often embedded within an aggregate of different types, i.e. a tuple. For a given size and access probabilit...