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CORR
2010
Springer
71views Education» more  CORR 2010»
13 years 10 months ago
Sampled Semantics of Timed Automata
Sampled semantics of timed automata is a nite approximation of their dense time behavior. While the former is closer to the actual software or hardware systems ed granularity of ti...
Parosh Aziz Abdulla, Pavel Krcál, Wang Yi
LMCS
2006
87views more  LMCS 2006»
13 years 10 months ago
Model Checking Probabilistic Pushdown Automata
We consider the model checking problem for probabilistic pushdown automata (pPDA) and properties expressible in various probabilistic logics. We start with properties that can be ...
Antonín Kucera, Javier Esparza, Richard May...
JCT
2007
107views more  JCT 2007»
13 years 10 months ago
Vertex-minors, monadic second-order logic, and a conjecture by Seese
We prove that one can express the vertex-minor relation on finite undirected graphs by formulas of monadic second-order logic (with no edge set quantification) extended with a p...
Bruno Courcelle, Sang-il Oum
SCP
1998
113views more  SCP 1998»
13 years 9 months ago
Linear-Time Hierarchies for a Functional Language Machine Model
In STOC 93, Jones sketched the existence of a hierarchy within problems decidable in linear time by a first-order functional language based on tree-structured data (F), as well a...
Eva Rose
ECCC
2011
217views ECommerce» more  ECCC 2011»
13 years 1 months ago
ReachFewL = ReachUL
We show that two complexity classes introduced about two decades ago are equal. ReachUL is the class of problems decided by nondeterministic log-space machines which on every inpu...
Brady Garvin, Derrick Stolee, Raghunath Tewari, N....