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COCOON
2001
Springer
14 years 14 days ago
Decidable Approximations on Generalized and Parameterized Discrete Timed Automata
We consider generalized discrete timed automata with general linear relations over clocks and parameterized constants as clock constraints and with parameterized durations. We look...
Zhe Dang, Oscar H. Ibarra, Richard A. Kemmerer
HYBRID
2000
Springer
13 years 11 months ago
Decidability and Complexity Results for Timed Automata and Semi-linear Hybrid Automata
Abstract. We define a new class of hybrid automata for which reachability is decidable--a proper superclass of the initialized rectangular hybrid automata--by taking parallel compo...
Joseph S. Miller
GIAE
2004
Springer
119views Mathematics» more  GIAE 2004»
14 years 1 months ago
Polynomial General Solutions for First Order Autonomous ODEs
For a first order autonomous ODE, we give a polynomial time algorithm to decide whether it has a polynomial general solution and to compute one if it exists. Experiments show that...
Ruyong Feng, Xiao-Shan Gao
IPPS
2007
IEEE
14 years 2 months ago
Constant Time Simulation of an R-Mesh on an LR-Mesh
Recently, many parallel computing models using dynamically reconfigurable electrical buses have been proposed in the literature. The underlying characteristics are similar among ...
Carlos Alberto Córdova-Flores, José ...
ISAAC
2005
Springer
122views Algorithms» more  ISAAC 2005»
14 years 1 months ago
Fast k-Means Algorithms with Constant Approximation
In this paper we study the k-means clustering problem. It is well-known that the general version of this problem is NP-hard. Numerous approximation algorithms have been proposed fo...
Mingjun Song, Sanguthevar Rajasekaran