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Deep heteroscedastic regression involves jointly optimizing the mean and covariance of the predicted distribution using the negative log-likelihood. However, recent works show that this may result in sub-optimal convergence due to the…

机器学习 · 计算机科学 2024-06-03 Megh Shukla , Mathieu Salzmann , Alexandre Alahi

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

Generating probabilistic forecasts of potential outcomes and individual treatment effects (ITE) is essential for risk-aware decision-making in domains such as healthcare, policy, marketing, and finance. We propose two novel methods: the…

机器学习 · 计算机科学 2025-09-24 Jef Jonkers , Jarne Verhaeghe , Glenn Van Wallendael , Luc Duchateau , Sofie Van Hoecke

Mutual information is a general statistical dependency measure which has found applications in representation learning, causality, domain generalization and computational biology. However, mutual information estimators are typically…

机器学习 · 统计学 2023-10-17 Paweł Czyż , Frederic Grabowski , Julia E. Vogt , Niko Beerenwinkel , Alexander Marx

Deep learning systems have been reported to achieve state-of-the-art performances in many applications, and a key is the existence of well trained classifiers on benchmark datasets. As a main-stream loss function, the cross entropy can…

机器学习 · 计算机科学 2022-09-22 Jirong Yi , Qiaosheng Zhang , Zhen Chen , Qiao Liu , Wei Shao

Correlated outcomes are common in many practical problems. In some settings, one outcome is of particular interest, and others are auxiliary. To leverage information shared by all the outcomes, traditional multi-task learning (MTL)…

统计方法学 · 统计学 2023-03-23 Muxuan Liang , Jaeyoung Park , Qing Lu , Xiang Zhong

The connectionist temporal classification (CTC) enables end-to-end sequence learning by maximizing the probability of correctly recognizing sequences during training. The outputs of a CTC-trained model tend to form a series of spikes…

计算机视觉与模式识别 · 计算机科学 2020-07-08 Hongzhu Li , Weiqiang Wang

Testing the independence between random vectors is a fundamental problem in statistics. Distance correlation, a recently popular dependence measure, is universally consistent for testing independence against all distributions with finite…

统计方法学 · 统计学 2024-08-22 Yuwei Ke , Hok Kan Ling , Yanglei Song

Meta-learning, or "learning to learn", refers to techniques that infer an inductive bias from data corresponding to multiple related tasks with the goal of improving the sample efficiency for new, previously unobserved, tasks. A key…

机器学习 · 计算机科学 2021-02-24 Sharu Theresa Jose , Osvaldo Simeone

We consider the problem of learning from data corrupted by underrepresentation bias, where positive examples are filtered from the data at different, unknown rates for a fixed number of sensitive groups. We show that with a small amount of…

机器学习 · 计算机科学 2024-06-05 Emily Diana , Alexander Williams Tolbert

We present a representation learning framework for financial time series forecasting. One challenge of using deep learning models for finance forecasting is the shortage of available training data when using small datasets. Direct trend…

机器学习 · 计算机科学 2021-05-10 Hanwei Wu , Ather Gattami , Markus Flierl

Deep learning models achieve state-of-the-art performance across domains but face scalability challenges in real-time or resource-constrained scenarios. To address this, we propose Loss Trajectory Correlation (LTC), a novel metric for…

机器学习 · 计算机科学 2025-03-14 Manish Nagaraj , Deepak Ravikumar , Efstathia Soufleri , Kaushik Roy

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

Fusing data from multiple modalities provides more information to train machine learning systems. However, it is prohibitively expensive and time-consuming to label each modality with a large amount of data, which leads to a crucial problem…

计算机视觉与模式识别 · 计算机科学 2020-07-15 Xinwei Sun , Yilun Xu , Peng Cao , Yuqing Kong , Lingjing Hu , Shanghang Zhang , Yizhou Wang

Conformal prediction (CP) is a wrapper around traditional machine learning models, giving coverage guarantees under the sole assumption of exchangeability; in classification problems, for a chosen significance level $\varepsilon$, CP…

机器学习 · 计算机科学 2023-02-23 Javier Abad , Umang Bhatt , Adrian Weller , Giovanni Cherubin

We provide an information-theoretic framework for studying the generalization properties of machine learning algorithms. Our framework ties together existing approaches, including uniform convergence bounds and recent methods for adaptive…

机器学习 · 计算机科学 2020-06-22 Thomas Steinke , Lydia Zakynthinou

In recent years, several unsupervised, "contrastive" learning algorithms in vision have been shown to learn representations that perform remarkably well on transfer tasks. We show that this family of algorithms maximizes a lower bound on…

机器学习 · 计算机科学 2020-06-08 Mike Wu , Chengxu Zhuang , Milan Mosse , Daniel Yamins , Noah Goodman

This paper studies the problem of distributionally robust model predictive control (MPC) using total variation distance ambiguity sets. For a discrete-time linear system with additive disturbances, we provide a conditional value-at-risk…

系统与控制 · 电气工程与系统科学 2022-06-27 Anushri Dixit , Mohamadreza Ahmadi , Joel W. Burdick

We present a methodology for model evaluation and selection where the sampling mechanism violates the i.i.d. assumption. Our methodology involves a formulation of the bias between the standard Cross-Validation (CV) estimator and the mean…

统计方法学 · 统计学 2025-03-14 Oren Yuval , Saharon Rosset

Canonical correlation analysis (CCA) is a fundamental statistical tool for exploring the correlation structure between two sets of random variables. In this paper, motivated by recent success of applying CCA to learn low dimensional…

统计理论 · 数学 2018-01-23 Zhuang Ma , Xiaodong Li