418 search results - page 14 / 84 » Optimizing Large Join Queries in Mediation Systems |
KESAMSTA
2007
Springer
14 years 1 months ago
2007
Springer
Queueing Theory deals with problems where some restricted resource should be shared between competitive flow of requests. In this paper we use Queueing Theory methods to perform a...
SSDBM
2005
IEEE
14 years 1 months ago
2005
IEEE
This paper introduces a framework for Phenomena Detection and Tracking (PDT, for short) in sensor network databases. Examples of detectable phenomena include the propagation over ...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
Multi-join queries are the core of any integration service that integrates data from multiple distributed data sources. Due to the large number of data sources and possibly high v...
RIVF
2003
13 years 9 months ago
2003
Abstract— This paper presents our work on supporting flexible query evaluation over large distributed, heterogeneous, and autonomous sources. Flexibility means that the query ev...
WWW
2006
ACM
14 years 8 months ago
2006
ACM
An important issue arising from Peer-to-Peer applications is how to accurately and efficiently retrieve a set of K best matching data objects from different sources while minimizi...