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OPODIS
2007
15 years 5 months ago
Timed Quorum Systems for Large-Scale and Dynamic Environments
This paper presents Timed Quorum System (TQS), a quorum system for large-scale and dynamic systems. TQS provides guarantees that two quorums, accessed at instances of time that are...
Vincent Gramoli, Michel Raynal
HUC
2010
Springer
15 years 5 months ago
CU-Later: a communication system considering time difference
Despite the widespread use of technology for social communication across distance, a number of barriers to such contact still exist. One such barrier is the problem of communicati...
Hitomi Tsujita, Svetlana Yarosh, Gregory D. Abowd
MEMOCODE
2003
IEEE
15 years 9 months ago
Real-time Property Preservation in Approximations of Timed Systems
Formal techniques have been widely applied in the design of real-time systems and have significantly helped detect design errors by checking real-time properties of the model. Ho...
Jinfeng Huang, Jeroen Voeten, Marc Geilen
FATES
2004
Springer
15 years 9 months ago
Testing Deadlock-Freeness in Real-Time Systems: A Formal Approach
A Time Action Lock is a state of a Real-time system at which neither time can progress nor an action can occur. Time Action Locks are often seen as signs of errors in the model or ...
Behzad Bordbar, Kozo Okano
MCSS
2002
Springer
15 years 4 months ago
Observability and Forward-Backward Observability of Discrete-Time Nonlinear Systems
In this paper, we study the observability properties of nonlinear discrete time systems. Two types of contributions are given. First, we present observability criteria in terms of...
Francesca Albertini, Domenico D'Alessandro