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IPL
2002
117views more  IPL 2002»
13 years 8 months ago
Complexity of weak acceptance conditions in tree automata
Weak acceptance conditions for automata on infinite words or trees are defined in terms of the set of states that appear in the run. This is in contrast with, more usual, strong c...
Jakub Neumann, Andrzej Szepietowski, Igor Walukiew...
RP
2009
Springer
124views Control Systems» more  RP 2009»
14 years 3 months ago
Forward Analysis of Dynamic Network of Pushdown Systems Is Easier without Order
Dynamic networks of Pushdown Systems (PDN in short) have been introduced to perform static analysis of concurrent programs that may spawn threads dynamically. In this model the se...
Denis Lugiez
FCT
2007
Springer
14 years 2 months ago
Complexity of Pebble Tree-Walking Automata
We consider tree-walking automata using k pebbles. The pebbles are either strong (can be lifted from anywhere) or weak (can be lifted only when the automaton is on it). For each k,...
Mathias Samuelides, Luc Segoufin
AMW
2011
13 years 12 days ago
A Direct Translation from XPath to Nondeterministic Automata
Since navigational aspects of XPath correspond to first-order definability, it has been proposed to use the analogy with the very successful technique of translating LTL into aut...
Nadime Francis, Claire David, Leonid Libkin
STOC
1998
ACM
115views Algorithms» more  STOC 1998»
14 years 1 months ago
Weak Alternating Automata and Tree Automata Emptiness
Orna Kupferman, Moshe Y. Vardi