نتایج جستجو برای: entropy production minimization

تعداد نتایج: 697066  

Journal: :Neurocomputing 2021

We formulate the entropy of a quantized artificial neural network as differentiable function that can be plugged regularization term into cost minimized by gradient descent. Our formulation scales efficiently beyond first order and is agnostic quantization scheme. The then trained to minimize parameters, so they optimally compressed via coding. experiment with our at quantizing compressing well...

Journal: :SIAM J. Scientific Computing 2014
Wei Zhang Han Wang Carsten Hartmann Marcus Weber Christof Schütte

We study the cross-entropy method for diffusions. One of the results is a versatile cross-entropy algorithm that can be used to design efficient importance sampling strategies for rare events or to solve optimal control problems. The approach is based on the minimization of a suitable cross-entropy functional, with a parametric family of exponentially tilted probability distributions. We illust...

Journal: :Information processing in medical imaging : proceedings of the ... conference 2007
Lilla Zöllei Mark Jenkinson Samson J. Timoner William M. Wells

We formalize the pair-wise registration problem in a maximum a posteriori (MAP) framework that employs a multinomial model of joint intensities with parameters for which we only have a prior distribution. To obtain an MAP estimate of the aligning transformation alone, we treat the multinomial parameters as nuisance parameters, and marginalize them out. If the prior on those is uninformative, th...

This study numerically investigated heat transfer and fluid flow characteristics in a novel cylindrical heat sink with helical minichannels for the laminar flow of fluid with temperature-dependent properties. A finite volume method was employed to obtain the solution of governing equations. The effects of helical angle, channel aspect ratio, and Reynolds number, which were regarded as main para...

Journal: :IEEE Trans. Information Theory 1993
Sergio Verdú Brian D. O. Anderson Rodney A. Kennedy

Minimization problems involving @-entropyfunctionals (ageneralization of Boltzmann-Shannon entropy) are studied over a givenset A and a sequence of sets A, and the properties of their optimalsolutions I@,I,. Under certain conditions on the objective functional andthe sets A and A,, it is proven that as n increases to infinity, the optimalsolution I, converges in Llno...

Journal: :EURASIP J. Adv. Sig. Proc. 2013
Lei Zhang Jialian Sheng Jia Duan Mengdao Xing Zhi-jun Qiao Zheng Bao

In general, conventional error correction for inverse synthetic aperture radarimaging consists of range alignment and phase adjustment, which compensate range shift and phase error, respectively. Minimum entropy-based methods have been proposed to realize range alignment and phase adjustment. However, it becomes challenging to align high-resolution profiles when strong noise presents, even usin...

1996
Ron Kohavi Mehran Sahami

We present a comparison of error-based and entropybased methods for discretization of continuous features. Our study includes both an extensive empirical comparison as well as an analysis of scenarios where error minimization may be an inappropriate discretization criterion. We present a discretization method based on the C4.5 decision tree algorithm and compare it to an existing entropy-based ...

2012
Nicoletta Saulig

Entropy measures applied to time-frequency signal representations have been found to be reliable indicators of various signal’s features. This paper gives an introduction to the time-frequency signal analysis, emphasizing the properties of time-frequency distributions that allow the application of entropy measures to quantify signals complexity. The paper includes an overview of the key propert...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید