383 search results - page 23 / 77 » Query Containment for Conjunctive Queries with Regular Expre... |
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
The interaction between recursion in XPATH and recursion in DTDs makes it challenging to answer XPATH queries on XML data that is stored in an RDBMS via schema-based shredding. We...
ADBIS
2004
Springer
14 years 2 months ago
2004
Springer
Abstract. Query rewriting method is proposed for the heterogeneous information integration infrastructure formed by the subject mediator environment. Local as View (LAV) approach t...
BMCBI
2002
13 years 8 months ago
2002
Background: Biologists are often interested in performing a simple database search to identify proteins or genes that contain a well-defined sequence pattern. Many databases do no...
DEBU
2007
13 years 8 months ago
2007
Modern database systems mostly support representation and retrieval of data belonging to different scripts and different languages. But the database functions are mostly designed ...
DILS
2006
Springer
14 years 10 days ago
2006
Springer
The Open Biomedical Ontologies (OBO) is a consortium that serves as a repository of ontologies that are structured like directed acyclic graphs. In this paper we present a language...