2853 search results - page 333 / 571 » On the Efficiency of Provenance Queries |
181
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SAC
2008
ACM
15 years 6 months ago
2008
ACM
In this paper, we focus on an aspect of distributed XQuery processing that involves data exchanges between processor elements. We first address problems of distributed XML query p...
291
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ICDE
2007
IEEE
16 years 8 months ago
2007
IEEE
Most of the existing work on skyline query has been extensively used in decision support, recommending systems etc, and mainly focuses on the efficiency issue for a single table. ...
255
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ICDE
2004
IEEE
16 years 8 months ago
2004
IEEE
Query optimization in data integration requires source coverage and overlap statistics. Gathering and storing the required statistics presents many challenges, not the least of wh...
237
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VLDB
2005
ACM
16 years 6 months ago
2005
ACM
Abstract. We propose a mediator model for providing integrated and unified access to multiple taxonomy-based sources. Each source comprises a taxonomy and a database that indexes o...
178
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ICDE
2010
IEEE
16 years 6 months ago
2010
IEEE
Abstract-- A large amount of the world's data is both sequential and imprecise. Such data is commonly modeled as Markovian streams; examples include words/sentences inferred f...