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Synthetic aperture radar (SAR) is an efficient and widely used remote sensing tool. However, data extracted from SAR images are contaminated with speckle, which precludes the application of techniques based on the assumption of additive and…

统计方法学 · 统计学 2024-10-15 A. D. C. Nascimento , J. M. Vasconcelos , R. J. Cintra , A. C. Frery

Expanding laser plasmas, produced by high energy laser radiation, possess both high thermal and magnetic field energy density. Characterization of such plasma is challenging but needed for understanding of its physical behaviour. Among all…

A method for classification of complex time series using coarse-grained entropy rates (CER's) is presented. The CER's, which are computed from information-theoretic functionals -- redundancies, are relative measures of regularity and…

comp-gas · 物理学 2015-06-24 Milan Palus

There is no single universally accepted definition of "Complexity". There are several perspectives on complexity and what constitutes complex behaviour or complex systems, as opposed to regular, predictable behaviour and simple systems. In…

数据分析、统计与概率 · 物理学 2018-01-17 Nithin Nagaraj , Karthi Balasubramanian

Gaussian and Laplacian entropy models are proved effective in learned point cloud attribute compression, as they assist in arithmetic coding of latents. However, we demonstrate through experiments that there is still unutilized information…

计算机视觉与模式识别 · 计算机科学 2025-06-12 Changhao Peng , Yuqi Ye , Wei Gao

We compute the asymptotic temporal behavior of the dynamical complexity associated with the maximum probability trajectories on Gaussian statistical manifolds in presence of correlations between the variables labeling the macrostates of the…

数学物理 · 物理学 2015-05-13 Carlo Cafaro , Stefano Mancini

In this article, we discuss the composite likelihood estimation of sparse Gaussian graphical models. When there are symmetry constraints on the concentration matrix or partial correlation matrix, the likelihood estimation can be…

统计计算 · 统计学 2012-08-22 Xin Gao , Helene Massam

We propose a data-adaptive probabilistic intensity remapping framework for structure-preserving transformation of grayscale images. The suggested method formulates intensity transformation as a continuous, data-driven remapping process, in…

量子物理 · 物理学 2026-04-24 Debashis Saikia , Bikash K. Behera , Mayukha Pal , Prasanta K. Panigrahi

We propose a new four-parameter distribution for modeling synthetic aperture radar (SAR) imagery named the gamma generalized normal (GGN) by combining the gamma and generalized normal distributions. A mathematical characterization of the…

统计方法学 · 统计学 2022-06-07 G. M. Cordeiro , R. J. Cintra , L. C. Rêgo , A. D. C. Nascimento

This paper presents a new derivation of the Generalized Poisson distribution. This distribution provides a good fit to the evolved, counts-in-cells distribution measured in numerical simulations of hierarchical clustering from Poisson…

天体物理学 · 物理学 2009-10-30 Ravi K. Sheth

It is known that statistical model selection as well as identification of dynamical equations from available data are both very challenging tasks. Physical systems behave according to their underlying dynamical equations which, in turn, can…

数学物理 · 物理学 2017-10-11 Sean Alan Ali , Carlo Cafaro

Statistically sound crystallographic symmetry classifications are obtained with information theory based methods in the presence of approximately Gaussian distributed noise. A set of three synthetic patterns with strong Fedorov type…

材料科学 · 物理学 2022-05-03 Peter Moeck

In high-dimensional statistical inference, sparsity regularizations have shown advantages in consistency and convergence rates for coefficient estimation. We consider a generalized version of Sparse-Group Lasso which captures both…

机器学习 · 统计学 2020-08-12 Xinyu Zhang

The amount of information available in spectro-polarimetric data is estimated. To this end, the intrinsic dimensionality of the data is inferred with the aid of a recently derived estimator based on nearest-neighbor considerations and…

天体物理学 · 物理学 2011-02-11 A. Asensio Ramos , H. Socas-Navarro , A. Lopez Ariste , M. J. Martinez Gonzalez

Theoretical analysis of biological and artificial neural networks e.g. modelling of synaptic or weight matrices necessitate consideration of the generic real-asymmetric matrix ensembles, those with varying order of matrix elements e.g. a…

无序系统与神经网络 · 物理学 2025-09-15 Ratul Dutta , Pragya Shukla

The entropy is a measure of uncertainty that plays a central role in information theory. When the distribution of the data is unknown, an estimate of the entropy needs be obtained from the data sample itself. We propose a semi-parametric…

统计方法学 · 统计学 2022-01-06 Stéphane Robin , Luca Scrucca

When inspecting information visualizations under time critical settings, such as emergency response or monitoring the heart rate in a surgery room, the user only has a small amount of time to view the visualization "at a glance". In these…

人机交互 · 计算机科学 2018-11-09 Gabriel Ryan , Abigail Mosca , Remco Chang , Eugene Wu

We present a new similarity measure based on information theoretic measures which is superior than Normalized Compression Distance for clustering problems and inherits the useful properties of conditional Kolmogorov complexity. We show that…

机器学习 · 统计学 2014-10-22 Andrey Bogomolov , Bruno Lepri , Fabio Pianesi

We develop information-theoretic measures of spatial structure and pattern in more than one dimension. As is well known, the entropy density of a two-dimensional configuration can be efficiently and accurately estimated via a converging…

统计力学 · 物理学 2009-11-07 David P. Feldman , James P. Crutchfield

Recently, sparsity has become a key concept in various areas of applied mathematics, computer science, and electrical engineering. One application of this novel methodology is the separation of data, which is composed of two (or more)…

数值分析 · 数学 2011-02-23 Gitta Kutyniok