642 search results - page 51 / 129 » Answering XML Queries on Heterogeneous Data Sources |
SSDBM
1999
IEEE
14 years 1 months ago
1999
IEEE
Conducting bioinformatic analyses involves biologists in expressing requests over a range of highly heterogeneous information sources and software tools. Such activities are labor...
ISMIS
2000
Springer
14 years 9 days ago
2000
Springer
Abstract. The conventional use of databases is commonly restricted to the retrieval of factual data in the form of tuples or records. However most databases also contain metadata i...
BTW
2007
Springer
14 years 22 days ago
2007
Springer
: Schema mapping techniques for data exchange have become popular and useful tools both in research and industry. A schema mapping relates a source schema with a target schema via ...
PODS
2000
ACM
14 years 1 months ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
Keyword search is a familiar and potentially effective way to find information of interest that is "locked" inside relational databases. Current work has generally assum...