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PODC
2010
ACM
14 years 10 months ago
Brief announcement: swarming secrets
We present information-theoretically secure schemes for sharing and modifying secrets among a dynamic swarm of computing devices. The schemes support an unlimited number of change...
Shlomi Dolev, Juan A. Garay, Niv Gilboa, Vladimir ...
ACTA
2010
104views more  ACTA 2010»
14 years 10 months ago
Reachability results for timed automata with unbounded data structures
Systems of Data Management Timed Automata (SDMTAs) are networks of communicating timed automata with structures to store messages and functions to manipulate them. We prove the dec...
Ruggero Lanotte, Andrea Maggiolo-Schettini, Angelo...
ITA
2006
14 years 9 months ago
Complexity classes for membrane systems
Abstract. We compare various computational complexity classes defined within the framework of membrane systems, a distributed parallel computing device which is inspired from the f...
Antonio E. Porreca, Giancarlo Mauri, Claudio Zandr...
JUCS
2007
126views more  JUCS 2007»
14 years 9 months ago
Accepting Networks of Evolutionary Processors with Filtered Connections
: In this paper we simplify a recent model of computation considered in [Margenstern et al. 2005], namely accepting network of evolutionary processors, by moving the filters from ...
Cezara Dragoi, Florin Manea, Victor Mitrana
IANDC
1998
64views more  IANDC 1998»
14 years 9 months ago
Positive Versions of Polynomial Time
We show that restricting a number of characterizations of the complexity class P to be positive (in natural ways) results in the same class of (monotone) problems which we denote ...
Clemens Lautemann, Thomas Schwentick, Iain A. Stew...