5221 search results - page 419 / 1045 » An On-line Problem Database |
152
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ADBIS
1995
Springer
15 years 10 months ago
1995
Springer
It is by now folklore that the bottom-up evaluation of a program after the “magic set” transformation is “as efficient as” top-down evaluation. There are a number of forma...
144
Voted
ADC
1995
Springer
15 years 10 months ago
1995
Springer
Even if high-level query languages are used, query formulation may cause problems. This is notably so in case of large and complex application domains. Typical examples of these k...
207
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DBVIS
1995
15 years 10 months ago
1995
More and more of our customers have to deal with very large datasets like elevation data and digital roadmaps covering Europe or even the entire world, very large images e.g. from...
178
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VLDB
1995
ACM
15 years 10 months ago
1995
ACM
In this paper we introduce generalized projections (GPs), an extension of duplicateeliminating projections, that capture aggregations, groupbys, duplicate-eliminating projections ...
180
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ICDE
2010
IEEE
15 years 10 months ago
2010
IEEE
Abstract-- This demo illustrates an XML search engine TargetSearch that addresses an open problem in XML keyword search: given relevant matches to keywords, how to compose query re...