نتایج جستجو برای: maximization of entropy

تعداد نتایج: 21174033  

Journal: :Neural networks : the official journal of the International Neural Network Society 2002
Marc M. Van Hulle

A new information-theoretic learning algorithm is introduced for kernel-based topographic map formation. The kernels are allowed to overlap and move freely in the input space, and to have differing kernel ranges. We start with Linsker's infomax principle and observe that it cannot be readily extended to our case, exactly due to the presence of kernels. We then consider Bell and Sejnowski's gene...

Journal: :Pattern Recognition Letters 2005
Yongjin Lee Seungjin Choi

This paper addresses a new method and aspect of information-theoretic clustering where we exploits the minimum entropy principle and the quadratic distance measure between probability densities. We present a new minimum entropy objective function which leads to the maximization of within-cluster association. A simple implementation using the gradient ascent method is given. In addition, we show...

1997
Jeroen Dehaene Nanayaa Twum-Danso

Information theoretic criteria for neural network adaptation laws have recently become an important focus of attention. We consider the problem of adaptively maximizing the entropy of the outputs of a deterministic feedforward neural network with real valued stochastic input signals, as considered by Bell and Sejnowski. We give a new explanation for the relevance of output information (entropy)...

Journal: :Eng. Appl. of AI 2012
Amitava Chatterjee Patrick Siarry Amir Nakib Raphaël Blanc

The present paper proposes the development of a three-level thresholding based image segmentation technique for real images obtained from CT scanning of a human head. The proposed method utilizes maximization of fuzzy entropy to determine the optimal thresholds. The optimization problem is solved by employing a very recently proposed population-based optimization technique, called biogeography ...

2015
Philipp Schwartenbeck Thomas H. B. FitzGerald Christoph Mathys Ray Dolan Martin Kronbichler Karl Friston

Classical economic models are predicated on the idea that the ultimate aim of choice is to maximize utility or reward. In contrast, an alternative perspective highlights the fact that adaptive behavior requires agents' to model their environment and minimize surprise about the states they frequent. We propose that choice behavior can be more accurately accounted for by surprise minimization com...

Journal: :Entropy 2017
Tatsuaki Tsuruyama

The field of information science has greatly developed, and applications in various fields have emerged. In this paper, we evaluated the coding system in the theory of Tsallis entropy for transmission of messages and aimed to formulate the channel capacity by maximization of the Tsallis entropy within a given condition of code length. As a result, we obtained a simple relational expression betw...

Journal: :European Journal of Operational Research 2005
Alexey Y. Popkov Yuri S. Popkov Leo van Wissen

Nonlinear dynamic systems with positive solutions and the parametric problem of entropy maximization (entropy operator) are considered. The continuity, differentiability and boundedness of the entropy operator and the boundedness of the solutions of the dynamic system are derived using the global implicit function theorem. The technique of positive dynamic systems is applied to modelling of the...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
Roberta Sinatra Jesús Gómez-Gardeñes Renaud Lambiotte Vincenzo Nicosia Vito Latora

Maximization of the entropy rate is an important issue to design diffusion processes aiming at a well-mixed state. We demonstrate that it is possible to construct maximal-entropy random walks with only local information on the graph structure. In particular, we show that an almost maximal-entropy random walk is obtained when the step probabilities are proportional to a power of the degree of th...

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