542 search results - page 41 / 109 » An Effective SPARQL Support over Relational Databases |
223
Voted
SIGMOD
2008
ACM
16 years 3 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
233
Voted
ICDE
2007
IEEE
16 years 4 months ago
2007
IEEE
Active Data Warehousing has emerged as an alternative to conventional warehousing practices in order to meet the high demand of applications for up-to-date information. In a nutsh...
112
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KDD
2004
ACM
16 years 3 months ago
2004
ACM
Mining frequent structural patterns from graph databases is an interesting problem with broad applications. Most of the previous studies focus on pruning unfruitful search subspac...
134
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ICDE
2009
IEEE
15 years 10 months ago
2009
IEEE
Abstract— It is widely realized that the integration of information retrieval (IR) and database (DB) techniques provides users with a broad range of high quality services. A new ...
137
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ICDE
2010
IEEE
16 years 3 months ago
2010
IEEE
Abstract-- This paper introduces a deterministic approximation algorithm with error guarantees for computing the probability of propositional formulas over discrete random variable...