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Displaying 61 –
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Differential evolution algorithm combined with chaotic pattern search(DE-CPS) for global optimization is introduced to improve the performance of simple DE algorithm. Pattern search algorithm using chaotic variables instead of random variables is used to accelerate the convergence of solving the objective value. Experiments on 6 benchmark problems, including morbid Rosenbrock function, show that the novel hybrid algorithm is effective for nonlinear optimization problems in high dimensional space....
We introduce the convex cone constituted by the directions
of majoration of a quasiconvex function. This cone is used to formulate a
qualification condition ensuring the epiconvergence of a sequence of general
quasiconvex marginal functions in finite dimensional spaces.
This paper deals with Markov Control Processes (MCPs) on Euclidean spaces with an infinite horizon and a discounted total cost. Firstly, MCPs which result from the deterministic controlled systems will be analyzed. For such MCPs, conditions that permit to establish the equation known in the literature of Economy as Euler’s Equation (EE) will be given. There will be also presented an example of a Markov Control Process with deterministic controlled system where, to obtain the optimal value function,...
This article concerns a class of discounted Markov decision processes on Borel spaces where, in contrast with the classical framework, the cost function is a fuzzy function of a trapezoidal type, which is determined from a classical cost function by applying an affine transformation with fuzzy coefficients. Under certain conditions ensuring that the classical (or standard) model with a cost function has an optimal stationary policy with the optimal cost , it is shown that such a policy...
An optimal dividend problem is studied consisting in maximisation of expected discounted dividend payments until ruin time. A solution of this problem for constant premium d and exponentially distributed claims is presented. It is shown that an optimal policy is a barrier policy. Moreover, an analytic way to solve this problem is sketched.
La problemática del transporte escolar es en Burgos especialmente significativa al ser una provincia extensa con muchos núcleos de población muy dispersos y poco poblados. En este trabajo se describen las aportaciones realizadas por los autores para dar solución a dicho problema, a través de técnicas que den soluciones lo más racionales posibles. En este sentido, hay que indicar que el término de racionalidad no sólo hace referencia a la minimización del coste total del transporte, sino también...
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