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Independent Component Analysis (ICA) offers interpretable semantic components of embeddings. While ICA theory assumes that embeddings can be linearly decomposed into independent components, real-world data often do not satisfy this…

计算与语言 · 计算机科学 2024-10-10 Momose Oyama , Hiroaki Yamagiwa , Hidetoshi Shimodaira

An efficient approach for the construction of separable approximations of optimal value functions from interconnected optimal control problems is presented. The approach is based on assuming decaying sensitivities between subsystems,…

最优化与控制 · 数学 2025-01-16 Mario Sperl , Luca Saluzzi , Lars Grüne , Dante Kalise

We discuss a path toward the generalisation of the nested soft-collinear subtraction scheme to arbitrary $2\rightarrow n$ processes. The scheme is designed to provide an efficient and process-independent procedure to extract and regulate…

高能物理 - 唯象学 · 物理学 2023-08-24 Chiara Signorile-Signorile , Davide Maria Tagliabue

Controlling false positives (Type I errors) through statistical hypothesis testing is a foundation of modern scientific data analysis. Existing causal structure discovery algorithms either do not provide Type I error control or cannot scale…

统计方法学 · 统计学 2025-12-29 James Leiner , Brian Manzo , Aaditya Ramdas , Wesley Tansey

This paper is concerned with the development, analysis and numerical realization of a novel variational model for the regularization of inverse problems in imaging. The proposed model is inspired by the architecture of generative…

最优化与控制 · 数学 2021-11-10 Andreas Habring , Martin Holler

Over the last couple of decades, several copula based methods have been proposed in the literature to test for the independence among several random variables. But these existing tests are not invariant under monotone transformations of the…

统计理论 · 数学 2019-11-15 Angshuman Roy , Anil Ghosh , Alok Goswami , C. A. Murthy

Signal separation and extraction are important tasks for devices recording audio signals in real environments which, aside from the desired sources, often contain several interfering sources such as background noise or concurrent speakers.…

信号处理 · 电气工程与系统科学 2020-07-15 Andreas Brendel , Thomas Haubner , Walter Kellermann

Drawbacks of ignoring the causal mechanisms when performing imitation learning have recently been acknowledged. Several approaches both to assess the feasibility of imitation and to circumvent causal confounding and causal misspecifications…

机器学习 · 计算机科学 2023-06-13 Fateme Jamshidi , Sina Akbari , Negar Kiyavash

Independent component analysis (ICA) is a fundamental data processing technique to decompose the captured signals into as independent as possible components. Computing the contrast function, which serves as a measure of independence of…

量子物理 · 物理学 2023-11-22 Xiao-Fan Xu , Cheng Xue , Zhao-Yun Chen , Yu-Chun Wu , Guo-Ping Guo

We consider the problem of inferring causal relationships between two or more passively observed variables. While the problem of such causal discovery has been extensively studied especially in the bivariate setting, the majority of current…

机器学习 · 统计学 2019-04-22 Ricardo Pio Monti , Kun Zhang , Aapo Hyvarinen

Current developments in computer vision and deep learning allow to automatically generate hyper-realistic images, hardly distinguishable from real ones. In particular, human face generation achieved a stunning level of realism, opening new…

计算机视觉与模式识别 · 计算机科学 2019-10-08 Francesco Marra , Cristiano Saltori , Giulia Boato , Luisa Verdoliva

Advancement in technology has generated abundant high-dimensional data that allows integration of multiple relevant studies. Due to their huge computational advantage, variable screening methods based on marginal correlation have become…

统计方法学 · 统计学 2017-10-12 Tianzhou Ma , Zhao Ren , George C. Tseng

We propose subspace methods for 3-parameter eigenvalue problems. Such problems arise when separation of variables is applied to separable boundary value problems; a particular example is the Helmholtz equation in ellipsoidal and…

数值分析 · 数学 2023-09-18 Michiel E. Hochstenbach , Karl Meerbergen , Emre Mengi , Bor Plestenjak

Correspondence analysis (CA) is a multivariate statistical tool used to visualize and interpret data dependencies. CA has found applications in fields ranging from epidemiology to social sciences. However, current methods used to perform CA…

机器学习 · 统计学 2019-02-22 Hsiang Hsu , Salman Salamatian , Flavio P. Calmon

Model-based approaches bear great promise for decision making of agents interacting with the physical world. In the context of spatial environments, different types of problems such as localisation, mapping, navigation or autonomous…

The independent set problem, ISP for short, asks for the maximal number of vertices in a (large) graph which can be occupied such that none of them are neighbors. We address the question from a statistical mechanics perspective, in the case…

组合数学 · 数学 2015-12-17 Nicola Kistler , Marius A. Schmidt

Independent component analysis provides a principled framework for unsupervised representation learning, with solid theory on the identifiability of the latent code that generated the data, given only observations of mixtures thereof.…

We develop a new neural network based independent component analysis (ICA) method by directly minimizing the dependence amongst all extracted components. Using the matrix-based R{\'e}nyi's $\alpha$-order entropy functional, our network can…

图像与视频处理 · 电气工程与系统科学 2022-02-16 Hongming Li , Shujian Yu , Jose C. Principe

Independent component analysis (ICA) is a fundamental statistical tool used to reveal hidden generative processes from observed data. However, traditional ICA approaches struggle with the rotational invariance inherent in Gaussian…

机器学习 · 计算机科学 2024-08-21 Ignavier Ng , Yujia Zheng , Xinshuai Dong , Kun Zhang

Shared autonomy holds promise for improving the usability and accessibility of assistive robotic arms, but current methods often rely on costly expert demonstrations and remain static after pretraining, limiting their ability to handle…

机器人学 · 计算机科学 2025-07-28 Yiran Tao , Guixiu Qiao , Dan Ding , Zackory Erickson