39 search results - page 5 / 8 » Past Pushdown Timed Automata |
FSTTCS
2009
Springer
15 years 4 months ago
2009
Springer
The paper focuses on the structure of fundamental sequences of ordinals smaller than ε0. A first result is the construction of a monadic second-order formula identifying a given ...
SIGMOD
2003
ACM
15 years 9 months ago
2003
ACM
We consider the problem of evaluating large numbers of XPath filters, each with many predicates, on a stream of XML documents. The solution we propose is to lazily construct a sin...
TACAS
2005
Springer
15 years 3 months ago
2005
Springer
Shorter counterexamples are typically easier to understand. The length of a counterexample, as reported by a model checker, depends on both the algorithm used for state space explo...
JALC
2007
14 years 9 months ago
2007
The basic finite automata model has been extended over the years with different acceptance modes (nondeterminism, alternation), new or improved devices (two-way heads, pebbles, ...
ENTCS
2006
14 years 9 months ago
2006
In previous work we have developed a syntactic reduction of repeated reachability to reachability for finite state systems. This may lead to simpler and more uniform proofs for mo...