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FORMATS
2007
Springer
14 years 2 months ago
Undecidability of Universality for Timed Automata with Minimal Resources
Timed automata were introduced by Alur and Dill in the early 1990s and have since become the most prominent modelling formalism for real-time systems. A fundamental limit to the al...
Sara Adams, Joël Ouaknine, James Worrell
EMSOFT
2007
Springer
14 years 2 months ago
Scheduling multiple independent hard-real-time jobs on a heterogeneous multiprocessor
This paper proposes a scheduling strategy and an automatic scheduling flow that enable the simultaneous execution of multiple hard-real-time dataflow jobs. Each job has its own ...
Orlando Moreira, Frederico Valente, Marco Bekooij
ISSS
2000
IEEE
94views Hardware» more  ISSS 2000»
14 years 9 days ago
A Transformational Approach to Constraint Relaxation of a Time-driven Simulation Model
Time-driven simulation models typically model timing in an idealized way that is over-constrained and cannot be directly implemented. In this paper we present a transformation to ...
Marek Jersak, Ying Cai, Dirk Ziegenbein, Rolf Erns...
CDC
2009
IEEE
110views Control Systems» more  CDC 2009»
13 years 5 months ago
Perturbation analysis and optimization of multiclass multiobjective Stochastic Flow Models
Stochastic Flow Models (SFMs) are stochastic ystems that abstract the dynamics of complex discrete event systems involving the control of sharable resources. SFMs have been used to...
Chen Yao, Christos G. Cassandras
ISCAS
2002
IEEE
190views Hardware» more  ISCAS 2002»
14 years 25 days ago
Analysis and improvement of correlation-based watermarking methods for digital images
This paper aims to design robust correlation-based watermarking methods for images. We rst present a model of watermark embedding and extracting processes and carry out their ana...
Akio Miyazaki, Akihiro Okamoto