XIMEP
2005
ACM
13 years 10 months ago
2005
ACM
We present in this paper a system for rewriting user-specific XPath queries for higher sharing of common sub-expressions in a streaming environment. We rewrite these queries acco...
SIGMOD
2005
ACM
14 years 4 months ago
2005
ACM
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...
ICDE
2006
IEEE
14 years 5 months ago
2006
IEEE
The detection of duplicate tuples, corresponding to the same real-world entity, is an important task in data integration and cleaning. While many techniques exist to identify such...
ICDE
2007
IEEE
14 years 5 months ago
2007
IEEE
We study the problem of answering queries posed on virtual views of XML documents, a problem commonly encountered when enforcing XML access control and integrating data. We approa...