443 search results - page 9 / 89 » Relational Approach to Logical Query Optimization of XPath |
ICDE
2008
IEEE
14 years 10 months ago
2008
IEEE
We study the problem of answering XPATH queries using multiple materialized views. Despite the efforts on answering queries using single materialized view, answering queries using ...
WWW
2006
ACM
14 years 9 months ago
2006
ACM
Path expressions are the principal means of locating data in a hierarchical model. But path expressions are brittle because they often depend on the structure of data and break if...
EDBTW
2006
Springer
14 years 7 days ago
2006
Springer
Abstract. We describe design and implementation of the linguistic query language DDDquery. This language aims at querying a large linguistic database storing a corpus of richly ann...
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
Relational data streams and XML streams have previously provided two separate research foci, but their unified support by a single Data Stream Management System (DSMS) is very des...
DLOG
2008
13 years 11 months ago
2008
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...