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» Quotient Complexity of Regular Languages
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ICALP
2009
Springer
14 years 9 months ago
On Regular Temporal Logics with Past,
The IEEE standardized Property Specification Language, PSL for short, extends the well-known linear-time temporal logic LTL with so-called semi-extended regular expressions. PSL an...
Christian Dax, Felix Klaedtke, Martin Lange
SIGMOD
2009
ACM
158views Database» more  SIGMOD 2009»
14 years 9 months ago
Simplifying XML schema: effortless handling of nondeterministic regular expressions
Whether beloved or despised, XML Schema is momentarily the only industrially accepted schema language for XML and is unlikely to become obsolete any time soon. Nevertheless, many ...
Geert Jan Bex, Wouter Gelade, Wim Martens, Frank N...
TCS
2011
13 years 4 months ago
Block insertion and deletion on trajectories
In this paper, we introduce block insertion and deletion on trajectories, which provide us with a new framework to study properties of language operations. With the parallel synta...
Bo Cui, Lila Kari, Shinnosuke Seki
PODS
2010
ACM
213views Database» more  PODS 2010»
14 years 2 months ago
Expressive languages for path queries over graph-structured data
For many problems arising in the setting of graph querying (such as finding semantic associations in RDF graphs, exact and approximate pattern matching, sequence alignment, etc.)...
Pablo Barceló, Carlos A. Hurtado, Leonid Li...
LICS
2012
IEEE
11 years 11 months ago
Graph Logics with Rational Relations and the Generalized Intersection Problem
Abstract—We investigate some basic questions about the interaction of regular and rational relations on words. The primary motivation comes from the study of logics for querying ...
Pablo Barceló, Diego Figueira, Leonid Libki...