542 search results - page 41 / 109 » An Effective SPARQL Support over Relational Databases |
SIGMOD
2008
ACM
14 years 8 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...
ICDE
2007
IEEE
14 years 10 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...
KDD
2004
ACM
14 years 9 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...
ICDE
2009
IEEE
14 years 3 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 ...
ICDE
2010
IEEE
14 years 8 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...