829 search results - page 31 / 166 » Location-aware Query Processing and Optimization |
WWW
2008
ACM
14 years 9 months ago
2008
ACM
This paper proposes several vectorial operators for processing XML twig queries, which are easy to be performed and inherently efficient for both Ancestor-Descendant (A-D) and Par...
DEXAW
2005
IEEE
14 years 2 months ago
2005
IEEE
Increasing popularity of XML and P2P networks has generated much interest in distributed processing of XML data. We propose a novel solution organized around a mediator capable of...
VLDB
1989
ACM
14 years 22 days ago
1989
ACM
This paper presents a parallel algorithm for recursive query processing and shows how it can be efficiently implemented in a local computer network. The algorithm relies on an int...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
We have developed a system to process database queries over composed data providing web services. The queries are transformed into execution plans containing an operator that invok...
MIDDLEWARE
2005
Springer
14 years 2 months ago
2005
Springer
These last years, the evolution of nomadic terminals and mobile networks has yield to the development of the ubiquitous computing. In this context, actual query evaluation and opt...