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Data from spectrophotometers form vectors of a large number of exploitable variables. Building quantitative models using these variables most often requires using a smaller set of variables than the initial one. Indeed, a too large number…

机器学习 · 计算机科学 2007-09-26 Fabrice Rossi , Amaury Lendasse , Damien François , Vincent Wertz , Michel Verleysen

In multivariate analysis, uncertainty arises from two sources: the marginal distributions of the variables and their dependence structure. Quantifying the dependence structure is crucial, as it provides valuable insights into the…

统计方法学 · 统计学 2025-02-19 Swaroop Georgy Zachariah , Mohd. Arshad , Ashok Kumar Pathak

In the analysis of time series from nonlinear sources, mutual information (MI) is used as a nonlinear statistical criterion for the selection of an appropriate time delay in time delay reconstruction of the state space. MI is a statistic…

混沌动力学 · 物理学 2009-10-31 Henry D. I. Abarbanel , Naoki Masuda , M. I. Rabinovich , Evren Tumer

Diffusion bridge models in both continuous and discrete state spaces have recently become powerful tools in the field of generative modeling. In this work, we leverage the discrete state space formulation of bridge matching models to…

机器学习 · 计算机科学 2026-02-10 Iryna Zabarianska , Sergei Kholkin , Grigoriy Ksenofontov , Ivan Butakov , Alexander Korotin

Multimodal image alignment is the process of finding spatial correspondences between images formed by different imaging techniques or under different conditions, to facilitate heterogeneous data fusion and correlative analysis. The…

计算机视觉与模式识别 · 计算机科学 2022-07-01 Johan Öfverstedt , Joakim Lindblad , Nataša Sladoje

Multivariate pattern analyses approaches in neuroimaging are fundamentally concerned with investigating the quantity and type of information processed by various regions of the human brain; typically, estimates of classification accuracy…

机器学习 · 统计学 2016-10-11 Charles Y. Zheng , Yuval Benjamini

Quantifying the dependence between high-dimensional random variables is central to statistical learning and inference. Two classical methods are canonical correlation analysis (CCA), which identifies maximally correlated projected versions…

机器学习 · 计算机科学 2023-09-29 Dor Tsur , Ziv Goldfeld , Kristjan Greenewald

We define Persistent Mutual Information (PMI) as the Mutual (Shannon) Information between the past history of a system and its evolution significantly later in the future. This quantifies how much past observations enable long term…

适应与自组织系统 · 物理学 2015-03-13 R. C. Ball , M. Diakonova , R. S. MacKay

We define a metric, mutual information in frequency (MI-in-frequency), to detect and quantify the statistical dependence between different frequency components in the data, referred to as cross-frequency coupling and apply it to…

神经元与认知 · 定量生物学 2018-05-23 Rakesh Malladi , Don H Johnson , Giridhar P Kalamangalam , Nitin Tandon , Behnaam Aazhang

Since its inception, the neural estimation of mutual information (MI) has demonstrated the empirical success of modeling expected dependency between high-dimensional random variables. However, MI is an aggregate statistic and cannot be used…

机器学习 · 计算机科学 2020-10-16 Yao-Hung Hubert Tsai , Han Zhao , Makoto Yamada , Louis-Philippe Morency , Ruslan Salakhutdinov

Mutual information (MI) is a promising candidate measure for the assessment and optimization of localization systems, as it captures nonlinear dependencies between random variables. However, the high cost of computing MI, especially for…

信号处理 · 电气工程与系统科学 2025-11-04 Sven Hinderer , Manuel Buchfink , Bin Yang

We propose a novel approach to the problem of mutual information (MI) estimation via introducing a family of estimators based on normalizing flows. The estimator maps original data to the target distribution, for which MI is easier to…

机器学习 · 计算机科学 2024-05-28 Ivan Butakov , Alexander Tolmachev , Sofia Malanchuk , Anna Neopryatnaya , Alexey Frolov

Our article addresses the problem of flexibly estimating a multivariate density while also attempting to estimate its marginals correctly. We do so by proposing two new estimators that try to capture the best features of mixture of normals…

统计方法学 · 统计学 2009-01-05 Paolo Giordani , Xiuyan Mun , Robert Kohn

We discuss the connection between information and copula theories by showing that a copula can be employed to decompose the information content of a multivariate distribution into marginal and dependence components, with the latter…

统计金融 · 定量金融 2011-10-26 Rafael S. Calsaverini , Renato Vicente

Mutual Information (MI) is a crucial measure for capturing dependencies between variables, but exact computation is challenging in high dimensions with intractable likelihoods, impacting accuracy and robustness. One idea is to use an…

机器学习 · 统计学 2025-03-13 Forough Fazeliasl , Michael Minyi Zhang , Bei Jiang , Linglong Kong

Estimating mutual information accurately is pivotal across diverse applications, from machine learning to communications and biology, enabling us to gain insights into the inner mechanisms of complex systems. Yet, dealing with…

机器学习 · 计算机科学 2024-11-12 Nunzio A. Letizia , Nicola Novello , Andrea M. Tonello

Estimating conditional mutual information (CMI) is an essential yet challenging step in many machine learning and data mining tasks. Estimating CMI from data that contains both discrete and continuous variables, or even discrete-continuous…

信息论 · 计算机科学 2021-01-14 Alexander Marx , Lincen Yang , Matthijs van Leeuwen

One of the most complex tasks of decision making and planning is to gather information. This task becomes even more complex when the state is high-dimensional and its belief cannot be expressed with a parametric distribution. Although the…

人工智能 · 计算机科学 2022-09-26 Gilad Rotman , Vadim Indelman

In this paper we focus on the estimation of mutual information from finite samples $(\mathcal{X}\times\mathcal{Y})$. The main concern with estimations of mutual information is their robustness under the class of transformations for which it…

数据分析、统计与概率 · 物理学 2020-02-04 Nicholas Carrara , Jesse Ernst

Mutual Information (MI) is an useful tool for the recognition of mutual dependence berween data sets. Differen methods for the estimation of MI have been developed when both data sets are discrete or when both data sets are continuous. The…

应用统计 · 统计学 2017-08-30 Miguel A. Ré , Guillermo G. Aguirre Varela