14306 search results - page 321 / 2862 » Database System Concepts |
166
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DEXA
1999
Springer
15 years 11 months ago
1999
Springer
When spatial objects are replicated at several sites in the network, the updates of a long transaction in a specific site should be propagated to the other sites for maintaining th...
178
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KDD
1995
ACM
15 years 10 months ago
1995
ACM
The information age is characterizedby a rapid growth in the amountof information availablein electronicmedia. Traditional data handling methods are not adequate to cope with this...
170
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BNCOD
2003
15 years 8 months ago
2003
In this paper we describe a query paradigm based on ontologies, aggregate table-driven querying and expansion of QBE. It has two novel features: visually specifying aggregate table...
169
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CORR
2010
Springer
15 years 6 months ago
2010
Springer
As mobile devices with positioning capabilities continue to proliferate, data management for so-called trajectory databases that capture the historical movements of populations of...
180
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ICDM
2008
IEEE
16 years 1 months ago
2008
IEEE
Since Jim Gray introduced the concept of ”data cube” in 1997, data cube, associated with online analytical processing (OLAP), has become a driving engine in data warehouse ind...