25 search results - page 2 / 5 » Query containment and rewriting using views for regular path... |
ICDT
2003
ACM
13 years 10 months ago
2003
ACM
All the languages for querying semistructured data and the web use as an integral part regular expressions. Based on practical observations, finding the paths that satisfy those r...
WEBDB
2000
Springer
13 years 8 months ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
VLDB
2007
ACM
14 years 4 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
CIKM
2007
Springer
13 years 11 months ago
2007
Springer
Regular path queries (RPQ’s) are given by means of regular expressions and ask for matching patterns on labeled graphs. RPQ’s have received great attention in the context of s...
SIGMOD
1999
ACM
13 years 9 months ago
1999
ACM
We address the problem of query rewriting for TSL, a language for querying semistructured data. We develop and present an algorithm that, given a semistructured query q and a set ...