542 search results - page 89 / 109 » An Effective SPARQL Support over Relational Databases |
EDBT
2012
ACM
11 years 11 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
CSCW
1998
ACM
14 years 26 days ago
1998
ACM
Usenet may be regarded as the world’s largest conversational application, with over 17,000 newsgroups and 3 million users. Despite its ubiquity and popularity, however, we know ...
CCGRID
2005
IEEE
14 years 2 months ago
2005
IEEE
ABSTRACT. Objectives. This paper addresses Grid-based integration and access of distributed data from infectious disease patient databases, literature on in-vitro and in-vivo pharm...
EDBT
2010
ACM
13 years 12 months ago
2010
ACM
A key advantage of scientific workflow systems over traditional scripting approaches is their ability to automatically record data and process dependencies introduced during workf...
VLDB
2002
ACM
13 years 8 months ago
2002
ACM
Automated recommendation (e.g., personalized product recommendation on an ecommerce web site) is an increasingly valuable service associated with many databases--typically online ...