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147
Voted
LFCS
2009
Springer
15 years 7 months ago
2009
Springer
Memory logics are a family of modal logics in which standard relational structures are augmented with data structures and additional operations to modify and query these structure...
111
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WWW
2006
ACM
16 years 1 months ago
2006
ACM
Path expressions are the principal means of locating data in a hierarchical model. But path expressions are brittle because they often depend on the structure of data and break if...
175
Voted
VLDB
2007
ACM
16 years 28 days ago
2007
ACM
Ontology, an explicit specification of shared conceptualization, has been increasingly used to define formal data semantics and improve data reusability and interoperability in en...
171
Voted
SIGMOD
2005
ACM
16 years 25 days ago
2005
ACM
We give semantic characterizations of the expressive power of navigational XPath (also called Core XPath) in terms of first order logic. XPath can be used to specify sets of nodes...
88
Voted
PODS
2004
ACM
16 years 25 days ago
2004
ACM
d abstract) Michael Benedikt Bell Labs Jan Van den Bussche Limburgs Universitair Centrum Christof L?oding Lehrstuhl Informatik VII RWTH Aachen Thomas Wilke Institut f?ur Informatik...