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CONCUR
2010
Springer
13 years 7 months ago
Bisimilarity of One-Counter Processes Is PSPACE-Complete
A one-counter automaton is a pushdown automaton over a singleton stack alphabet. We prove that the bisimilarity of processes generated by nondeterministic one-counter automata (wit...
Stanislav Böhm, Stefan Göller, Petr Janc...
ICALP
2009
Springer
14 years 6 months ago
Improved Algorithms for Latency Minimization in Wireless Networks
In the interference scheduling problem, one is given a set of n communication requests described by sourcedestination pairs of nodes from a metric space. The nodes correspond to d...
Alexander Fanghänel, Berthold Vöcking, T...
COLT
2007
Springer
14 years 6 days ago
Improved Rates for the Stochastic Continuum-Armed Bandit Problem
Abstract. Considering one-dimensional continuum-armed bandit problems, we propose an improvement of an algorithm of Kleinberg and a new set of conditions which give rise to improve...
Peter Auer, Ronald Ortner, Csaba Szepesvári
FORMATS
2009
Springer
13 years 10 months ago
Stochastic Games for Verification of Probabilistic Timed Automata
Probabilistic timed automata (PTAs) are used for formal modelling and verification of systems with probabilistic, nondeterministic and real-time behaviour. For non-probabilistic ti...
Marta Z. Kwiatkowska, Gethin Norman, David Parker
STOC
2005
ACM
146views Algorithms» more  STOC 2005»
14 years 6 months ago
Approximation algorithms for combinatorial auctions with complement-free bidders
We exhibit three approximation algorithms for the allocation problem in combinatorial auctions with complement free bidders. The running time of these algorithms is polynomial in ...
Shahar Dobzinski, Noam Nisan, Michael Schapira