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We propose utilizing entropy as a diagnostic tool to distinguish between constant and dynamical dark energy models. Entropy, a measure of the system's disorder or information content, captures the complexity and evolution of the universe.…

广义相对论与量子宇宙学 · 物理学 2025-07-16 Tanisha Joshi

Multiview depth imagery will play a critical role in free-viewpoint television. This technology requires high quality virtual view synthesis to enable viewers to move freely in a dynamic real world scene. Depth imagery at different…

计算机视觉与模式识别 · 计算机科学 2023-01-30 Pravin Kumar Rana , Markus Flierl

Multidimensional unfolding methods are widely used for visualizing item response data. Such methods project respondents and items simultaneously onto a low-dimensional Euclidian space, in which respondents and items are represented by ideal…

统计方法学 · 统计学 2020-09-04 Yunxiao Chen , Zhiliang Ying , Haoran Zhang

Considerable efforts to measure and mitigate gender bias in recent years have led to the introduction of an abundance of tasks, datasets, and metrics used in this vein. In this position paper, we assess the current paradigm of gender bias…

计算与语言 · 计算机科学 2022-10-21 Hadas Orgad , Yonatan Belinkov

The quest for simplification in physics drives the exploration of concise mathematical representations for complex systems. This Dissertation focuses on the concept of dimensionality reduction as a means to obtain low-dimensional…

机器学习 · 计算机科学 2024-10-31 Eslam Abdelaleem

Envelope methodology can provide substantial efficiency gains in multivariate statistical problems, but in some applications the estimation of the envelope dimension can induce selection volatility that may mitigate those gains. Current…

统计方法学 · 统计学 2017-04-17 Daniel J. Eck , R. Dennis Cook

We propose a method for metric-scale monocular depth estimation. Inferring depth from a single image is an ill-posed problem due to the loss of scale from perspective projection during the image formation process. Any scale chosen is a…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Ziyao Zeng , Yangchao Wu , Hyoungseob Park , Daniel Wang , Fengyu Yang , Stefano Soatto , Dong Lao , Byung-Woo Hong , Alex Wong

In this note we discuss a common misconception, namely that embeddings are always used to reduce the dimensionality of the item space. We show that when we measure dimensionality in terms of information entropy then the embedding of sparse…

机器学习 · 计算机科学 2019-01-09 Maxim Naumov

Transfer entropy is used to establish a measure of causal relationships between two variables. Symbolic transfer entropy, as an estimation method for transfer entropy, is widely applied due to its robustness against non-stationarity. This…

计算复杂性 · 计算机科学 2024-09-24 Dian Jin

To quantify the complexity of a system, entropy-based methods have received considerable critical attentions in real-world data analysis. Among numerous entropy algorithms, amplitude-based formulas, represented by Sample Entropy, suffer…

信号处理 · 电气工程与系统科学 2022-01-12 Hongjian Xiao , Danilo P. Mandic

Building fair deep neural networks (DNNs) is a crucial step towards achieving trustworthy artificial intelligence. Delving into deeper factors that affect the fairness of DNNs is paramount and serves as the foundation for mitigating model…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Yanbiao Ma , Licheng Jiao , Fang Liu , Lingling Li , Wenping Ma , Shuyuan Yang , Xu Liu , Puhua Chen

In empirical research, when we have multiple estimators for the same parameter of interest, a central question arises: how do we combine unbiased but less precise estimators with biased but more precise ones to improve the inference? Under…

统计方法学 · 统计学 2026-02-19 Zhexiao Lin , Peter J. Bickel , Peng Ding

We introduce a new method to jointly reduce the dimension of the input and output space of a function between high-dimensional spaces. Choosing a reduced input subspace influences which output subspace is relevant and vice versa.…

机器学习 · 统计学 2025-04-01 Qiao Chen , Elise Arnaud , Ricardo Baptista , Olivier Zahm

This paper fosters the idea that deep learning methods can be used to complement classical visual odometry pipelines to improve their accuracy and to associate uncertainty models to their estimations. We show that the biases inherent to the…

计算机视觉与模式识别 · 计算机科学 2020-07-30 Andrea De Maio , Simon Lacroix

The estimation of depth in two-dimensional images has long been a challenging and extensively studied subject in computer vision. Recently, significant progress has been made with the emergence of Deep Learning-based approaches, which have…

计算机视觉与模式识别 · 计算机科学 2023-10-26 Vasileios Arampatzakis , George Pavlidis , Kyriakos Pantoglou , Nikolaos Mitianoudis , Nikos Papamarkos

Information theoretic quantities play an important role in various settings in machine learning, including causality testing, structure inference in graphical models, time-series problems, feature selection as well as in providing privacy…

信息论 · 计算机科学 2018-10-30 Arman Rahimzamani , Himanshu Asnani , Pramod Viswanath , Sreeram Kannan

Local intrinsic dimension (LID) estimation methods have received a lot of attention in recent years thanks to the progress in deep neural networks and generative modeling. In opposition to old non-parametric methods, new methods use…

机器学习 · 统计学 2024-12-24 Piotr Tempczyk , Łukasz Garncarek , Dominik Filipiak , Adam Kurpisz

Most entropy measures depend on the spread of the probability distribution over the sample space $\mathcal{X}$, and the maximum entropy achievable scales proportionately with the sample space cardinality $|\mathcal{X}|$. For a finite…

机器学习 · 计算机科学 2023-05-25 Rohan Ghosh , Mehul Motani

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

Neural networks have shown great abilities in estimating depth from a single image. However, the inferred depth maps are well below one-megapixel resolution and often lack fine-grained details, which limits their practicality. Our method…

计算机视觉与模式识别 · 计算机科学 2021-05-31 S. Mahdi H. Miangoleh , Sebastian Dille , Long Mai , Sylvain Paris , Yağız Aksoy