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Despite the widespread adoption of deterministic samplers in diffusion models (DMs), their potential limitations remain largely unexplored. In this paper, we identify collapse errors, a previously unrecognized phenomenon in ODE-based…

机器学习 · 计算机科学 2025-08-25 Yi Zhang , Zhenyu Liao , Jingfeng Wu , Difan Zou

Logistic regression models are widely used in the social and behavioral sciences and in high-stakes domains, due to their simplicity and interpretability properties. At the same time, such domains are permeated by distribution shifts, where…

机器学习 · 计算机科学 2025-03-18 Qingshi Sun , Nathan Justin , Andres Gomez , Phebe Vayanos

This paper studies empirical risk minimization (ERM) problems for large-scale datasets and incorporates the idea of adaptive sample size methods to improve the guaranteed convergence bounds for first-order stochastic and deterministic…

机器学习 · 计算机科学 2017-09-05 Aryan Mokhtari , Alejandro Ribeiro

We consider a network of sensors deployed to sense a spatio-temporal field and estimate a parameter of interest. We are interested in the case where the temporal process sensed by each sensor can be modeled as a state-space process that is…

分布式、并行与集群计算 · 计算机科学 2008-04-12 S. Sundhar Ram , V. V. Veeravalli , A. Nedic

Machine learning models struggle with generalization when encountering out-of-distribution (OOD) samples with unexpected distribution shifts. For vision tasks, recent studies have shown that test-time adaptation employing diffusion models…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Yun-Yun Tsai , Fu-Chen Chen , Albert Y. C. Chen , Junfeng Yang , Che-Chun Su , Min Sun , Cheng-Hao Kuo

Empirical risk minimization (ERM) and distributionally robust optimization (DRO) are popular approaches for solving stochastic optimization problems that appear in operations management and machine learning. Existing generalization error…

最优化与控制 · 数学 2023-09-26 Garud Iyengar , Henry Lam , Tianyu Wang

We propose a projection-based class of uniformity tests on the hypersphere using statistics that integrate, along all possible directions, the weighted quadratic discrepancy between the empirical cumulative distribution function of the…

统计方法学 · 统计学 2020-09-22 Eduardo García-Portugués , Paula Navarro-Esteban , Juan A. Cuesta-Albertos

We derive minimax testing errors in a distributed framework where the data is split over multiple machines and their communication to a central machine is limited to $b$ bits. We investigate both the $d$- and infinite-dimensional signal…

统计理论 · 数学 2022-12-13 Botond Szabó , Lasse Vuursteen , Harry van Zanten

Deep metric learning (DML) is a popular approach for images retrieval, solving verification (same or not) problems and addressing open set classification. Arguably, the most common DML approach is with triplet loss, despite significant…

机器学习 · 计算机科学 2019-12-02 Istvan Fehervari , Avinash Ravichandran , Srikar Appalaraju

A new gradient-based adaptive sampling method is proposed for design of experiments applications which balances space filling, local refinement, and error minimization objectives while reducing reliance on delicate tuning parameters. High…

统计方法学 · 统计学 2024-05-09 Lucas Caparini , Gwynn J. Elfring , Mauricio Ponga

An algorithm for sampling exactly from the normal distribution is given. The algorithm reads some number of uniformly distributed random digits in a given base and generates an initial portion of the representation of a normal deviate in…

计算物理 · 物理学 2016-02-01 Charles F. F. Karney

We investigate the performance of error mitigation via measurement of conserved symmetries on near-term devices. We present two protocols to measure conserved symmetries during the bulk of an experiment, and develop a zero-cost…

量子物理 · 物理学 2019-01-03 X. Bonet-Monroig , R. Sagastizabal , M. Singh , T. E. O'Brien

We introduce Diffusion Active Learning, a novel approach that combines generative diffusion modeling with data-driven sequential experimental design to adaptively acquire data for inverse problems. Although broadly applicable, we focus on…

机器学习 · 计算机科学 2025-04-07 Luis Barba , Johannes Kirschner , Tomas Aidukas , Manuel Guizar-Sicairos , Benjamín Béjar

Few shot learning is an important problem in machine learning as large labelled datasets take considerable time and effort to assemble. Most few-shot learning algorithms suffer from one of two limitations- they either require the design of…

机器学习 · 计算机科学 2022-04-12 Shakti Kumar , Hussain Zaidi

Selecting relevant features is an important and necessary step for intelligent machines to maximize their chances of success. However, intelligent machines generally have no enough computing resources when faced with huge volume of data.…

机器学习 · 计算机科学 2025-07-04 Hexiang Bai , Deyu Li , Jiye Liang , Yanhui Zhai

This paper introduces a noise-tolerant computing method for over-the-air computation (AirComp) aimed at weighted averaging, which is critical in various Internet of Things (IoT) applications such as environmental monitoring. Traditional…

信号处理 · 电气工程与系统科学 2025-04-23 Koya Sato , Koji Ishibashi

Heteroscedasticity testing is of importance in regression analysis. Existing local smoothing tests suffer severely from curse of dimensionality even when the number of covariates is moderate because of use of nonparametric estimation. In…

统计方法学 · 统计学 2015-10-14 Xuehu Zhu , Fei Chen , Xu Guo , Lixing Zhu

The problem of quickest detection of a change in the distribution of a sequence of independent observations is considered. It is assumed that the pre-change distribution is known (accurately estimated), while the only information about the…

统计理论 · 数学 2023-09-29 Liyan Xie , Yuchen Liang , Venugopal V. Veeravalli

A fundamental principle of learning theory is that there is a trade-off between the complexity of a prediction rule and its ability to generalize. Modern machine learning models do not obey this paradigm: They produce an accurate prediction…

机器学习 · 计算机科学 2021-06-18 Koby Bibas , Meir Feder

We consider high-dimensional generalized linear models when the covariates are contaminated by measurement error. Estimates from errors-in-variables regression models are well-known to be biased in traditional low-dimensional settings if…

统计计算 · 统计学 2020-01-06 Michael Byrd , Monnie McGee