48 search results - page 4 / 10 » Locally Consistent Transformations and Query Answering in Da... |
VLDB
2000
ACM
13 years 10 months ago
2000
ACM
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...
DBPL
2005
Springer
14 years 12 days ago
2005
Springer
We study peer-to-peer ðP2PÞ data integration, where each peer models an autonomous system that exports data in terms of its own schema, and data interoperation is achieved by me...
GLOBE
2008
Springer
13 years 8 months ago
2008
Springer
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...
VLDB
2000
ACM
13 years 10 months ago
2000
ACM
Approximate query answering systems provide very fast alternatives to OLAP systems when applications are tolerant to small errors in query answers. Current sampling-based approach...
SDMW
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...