2853 search results - page 43 / 571 » On the Efficiency of Provenance Queries |
SAC
2009
ACM
15 years 4 months ago
2009
ACM
Today user-centered information acquisition over collections of complex XML documents is increasingly in demand. To this end, preferences have become an important paradigm enablin...
105
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ICDCS
2007
IEEE
15 years 1 months ago
2007
IEEE
On-line decision making often involves query processing over time-varying data which arrives in the form of data streams from distributed locations. In such environments typically...
119
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DEXA
2006
Springer
15 years 1 months ago
2006
Springer
Abstract. Finding all occurrences of a twig pattern in an XML document is a core operation for XML query processing. The emergence of XML as a common mark-up language for data inte...
157
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
Existing keyword-search systems in relational databases require users to submit a complete query to compute answers. Often users feel "left in the dark" when they have l...
PODS
2002
ACM
15 years 9 months ago
2002
ACM
Decision support system users typically submit batches of range-sum queries simultaneously rather than issuing individual, unrelated queries. We propose a wavelet based technique ...