267 search results - page 17 / 54 » Schema Mapping as Query Discovery |
PODS
2012
ACM
12 years 8 days ago
2012
ACM
Over the past several decades, the study of conjunctive queries has occupied a central place in the theory and practice of database systems. In recent years, conjunctive queries h...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
This paper extends relational processing and optimization to the FISQL/FIRA languages for dynamic schema queries over multidatabases. Dynamic schema queries involve the creation a...
WWW
2005
ACM
14 years 10 months ago
2005
ACM
Constructing and maintaining semantic mappings are necessary but troublesome in data sharing systems. While most current work focuses on seeking automated techniques to solve this...
ENTCS
2006
13 years 9 months ago
2006
This work describes the architecture of Contorsion, a semantic XPath processor that acts over an RDF mapping of XML. It contributes to a recent research trend that defines an XML-...
PVLDB
2010
13 years 8 months ago
2010
Applications typically have some local understanding of a database schema, a virtual database that may differ significantly from the actual schema of the data where it is stored...