Sciweavers

27756 search results - page 337 / 5552
» Process Query Systems
Sort
View
EDBTW
2004
Springer
15 years 9 months ago
Data Sharing and Querying for Peer-to-Peer Data Management Systems
In this work, we investigate mechanisms to support data sharing and querying in a peer-to-peer data management system, that is, a peer-to-peer system where each peer manages its ow...
Anastasios Kementsietsidis
GLOBE
2008
Springer
15 years 4 months ago
Query Propagation in a P2P Data Integration System in the Presence of Schema Constraints
This paper addresses the problem of data integration in a P2P environment, where each peer stores schema of its local data, mappings between the schemas, and some schema constraint...
Tadeusz Pankowski
PODS
2003
ACM
142views Database» more  PODS 2003»
16 years 4 months ago
Query containment and rewriting using views for regular path queries under constraints
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...
Gösta Grahne, Alex Thomo
IDEAS
2003
IEEE
91views Database» more  IDEAS 2003»
15 years 9 months ago
Implementation Issues of a Deterministic Transformation System for Structured Document Query Optimization
As the popularity of XML keeps growing rapidly, XML compliant structured document management becomes an interesting and compelling research area. Query optimization for structured...
Dunren Che
VLDB
2006
ACM
203views Database» more  VLDB 2006»
16 years 4 months ago
The CQL continuous query language: semantic foundations and query execution
CQL, a Continuous Query Language, is supported by the STREAM prototype Data Stream Management System at Stanford. CQL is an expressive SQL-based declarative language for registeri...
Arvind Arasu, Shivnath Babu, Jennifer Widom