404 search results - page 41 / 81 » Querying Data under Access Limitations |
COLCOM
2008
IEEE
14 years 2 months ago
2008
IEEE
Nowadays, increasing needs for information sharing arise due to extensive collaborations among organizations. Organizations desire to provide data access to their collaborators whi...
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
EDBT
2009
ACM
14 years 10 days ago
2009
ACM
Decision Support Systems (DSS) are information systems that support decision making processes. In many scenarios these systems are built on top of data managed by DBMSs and make e...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Translating data and data access operations between applications and databases is a longstanding data management problem. We present a novel approach to this problem, in which the...
ICDE
2005
IEEE
14 years 1 months ago
2005
IEEE
Various index structures have been proposed to speed up the evaluation of XML path expressions. However, existing XML path indices suffer from at least one of three limitations: ...