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ISMIS
1999
Springer
15 years 2 months ago
1999
Springer
Semantic Query Optimisation makes use of the semantic knowledge of a database (rules) to perform query transformation. Rules are normally learned from former queries fired by the u...
109
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CPAIOR
2011
Springer
14 years 1 months ago
2011
Springer
We introduce the Upgrading Shortest Paths Problem, a new combinatorial problem for improving network connectivity with a wide range of applications from multicast communication to ...
106
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MOBIQUITOUS
2007
IEEE
15 years 4 months ago
2007
IEEE
—Handheld devices have become sufficiently powerful that it is easy to create, disseminate, and access digital content (e.g., photos, videos) using them. The volume of such cont...
106
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EDBT
2002
ACM
15 years 10 months ago
2002
ACM
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...
91
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ISAAC
2007
Springer
15 years 4 months ago
2007
Springer
Abstract. We show how to represent sets in a linear space data structure such that expressions involving unions and intersections of sets can be computed in a worst-case efficient ...