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» Intersection of Regular Signal-Event (Timed) Languages
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FORMATS
2006
Springer
13 years 8 months ago
Intersection of Regular Signal-Event (Timed) Languages
Béatrice Bérard, Paul Gastin, Antoin...
FMSD
2007
101views more  FMSD 2007»
13 years 4 months ago
Timed substitutions for regular signal-event languages
In the classical framework of formal languages, a refinement n is modeled by a substitution and an abstraction by an inverse substitution. These mechanisms have been widely studie...
Béatrice Bérard, Paul Gastin, Antoin...
CORR
2010
Springer
139views Education» more  CORR 2010»
13 years 4 months ago
A proof Procedure for Testing Membership in Regular Expressions
We propose an algorithm that tests membership for regular expressions and show that the algorithm is correct. This algorithm is written in the style of a sequent proof system. The...
Keehang Kwon, Hong Pyo Ha, Jiseung Kim
SODA
2001
ACM
92views Algorithms» more  SODA 2001»
13 years 6 months ago
On universally easy classes for NP-complete problems
We explore the natural question of whether all NP-complete problems have a common restriction under which they are polynomially solvable. More precisely, we study what languages a...
Erik D. Demaine, Alejandro López-Ortiz, J. ...
PLANX
2008
13 years 6 months ago
Linear Time Membership for a Class of XML Types with Interleaving and Counting
Regular Expressions (REs) form the basis of most XML type languages, such as DTDs, XML Schema types, and XDuce types (Thompson et al. 2004; Hosoya and Pierce 2003). In this contex...
Giorgio Ghelli, Dario Colazzo, Carlo Sartiani