PODS
2012
ACM
11 years 7 months 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...
CIKM
2011
Springer
12 years 4 months ago
2011
Springer
We consider data exchange for XML documents: given source and target schemas, a mapping between them, and a document conforming to the source schema, construct a target document a...