777 search results - page 45 / 156 » Optimization of Relational Preference Queries |
PVLDB
2008
13 years 8 months ago
2008
Online communities like Flickr, del.icio.us and YouTube have established themselves as very popular and powerful services for publishing and searching contents, but also for ident...
INFOVIS
2003
IEEE
14 years 2 months ago
2003
IEEE
Dynamic queries facilitate rapid exploration of information by real-time visual display of both query formulation and results. Dynamic query sliders are linked to the main visuali...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
A “plan diagram” is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. In this paper, we present and an...
CORR
2007
Springer
13 years 9 months ago
2007
Springer
We address the problem of answering Web ontology queries efficiently. An ontology is formalized as a Deductive Ontology Base (DOB), a deductive database that comprises the ontology...
WEBDB
2000
Springer
14 years 15 days ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...