617 search results - page 7 / 124 » Semantic queries in databases: problems and challenges |
TIME
2007
IEEE
14 years 1 months ago
2007
IEEE
Transaction-time temporal databases and query languages provide a solid framework for analyzing properties of queries over data streams. In this paper we focus on issues connected...
AAAI
2006
13 years 9 months ago
2006
This report is an expanded version of a paper in AAAI-2006 proceedings. In this report, we investigate the challenges that must be addressed for the Semantic Web to become a feasi...
ICDT
2012
ACM
11 years 10 months ago
2012
ACM
The problems of query containment, equivalence, and minimization are recognized as very important in the context of query processing, specifically of query optimization. In their...
SEBD
2007
13 years 9 months ago
2007
Preference queries aim to retrieve from large databases those objects that better match user’s requirements. Approaches proposed so far in the DB field for specifying preference...
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
Correctly generating a structured query (e.g., an XQuery or a SQL query) requires the user to have a full understanding of the database schema, which can be a daunting task. Alter...