نتایج جستجو برای: maximization of entropy
تعداد نتایج: 21174033 فیلتر نتایج به سال:
The channel capacity of a deterministic system with confidential data is an upper bound on the amount of bits of data an attacker can learn from the system. We encode all possible attacks to a system using a probabilistic specification, an Interval Markov Chain. Then the channel capacity computation reduces to finding a model of a specification with highest entropy. Entropy maximization for pro...
A hierarchy of diffusive partial differential equations is derived by a moment method and a Chapman-Enskog expansion from the semiconductor Boltzmann equation assuming dominant collisions. The moment equations are closed by employing the entropy maximization principle of Levermore. The new hierarchy contains the well-known drift-diffusion model, the energy-transport equations, and the six-momen...
the estimate of entropy (sample entropy), has been introduced by vasicek (1976), for the first time. in this paper, we provide an estimate of entropy of order statistics, that is the extention of the entropy estimate. then we present an application of the entropy estimate of order statistics as a test statistic for symmetry of distribution versus skewness. the proposed test has been compared wi...
Distance has long been viewed as a barrier to population migration, and there are numerous studies that identify the existence of a "dis tance decay effect" in migration and in other types of spatial interac tion [5;8]. Traditionally the relationship between distance and migra tion has been examined with the use of the well-known gravity mode!, which is based on an analogy with Newtonian mec...
A hierarchy of diffusive partial differential equations is derived by a moment method and a Chapman-Enskog expansion from the semiconductor Boltzmann equation assuming dominant collisions. The moment equations are closed by employing the entropy maximization principle of Levermore. The new hierarchy contains the well-known drift-diffusion model, the energy-transport equations, and the six-momen...
This paper is concerned with the control of a class of dynamical systems over finite capacity communication channels. Necessary conditions for reliable data reconstruction and stability of a class of dynamical systems are derived. The methodology is information theoretic. It introduces the notion of entropy for a class of sources, which is defined as a maximization of the Shannon entropy over a...
We examine the relationship between the Cooper-Herskovitz score of a Bayesian network and the conditional entropies of the nodes of the networks conditioned on the probability distributions of their parents. We show that minimizing the conditional entropy of each node of the BNS conditioned on its set of parents amounts to maximization of the CH score. The main result is a lower bound on the si...
Applied statistical modelers frequently have to compare models of rather w different forms. To the extent that objective criteria are used to facilitate such compatisons, Akaike’s minimum AIC criterion seems to be the one most widely used, due in part, perhaps, to its ease of use and its impressive successes in some industrial applications. A coherent theory to motivate MAIC’s use with non-nest...
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