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Foundation models often generate unreliable answers, while heuristic uncertainty estimators fail to fully distinguish correct from incorrect outputs, causing users to accept erroneous answers without any statistical guarantee. We address…

人工智能 · 计算机科学 2026-05-27 Zhiyuan Wang , Aniri , Tianlong Chen , Yue Zhang , Heng Tao Shen , Xiaoshuang Shi , Kaidi Xu

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

Tacho-less rotational speed estimation is critical for vibration-based prognostics and health management (PHM) of rotating machinery, yet traditional methods--such as time-domain periodicity, cepstrum, and harmonic comb matching--struggle…

信号处理 · 电气工程与系统科学 2026-04-01 Weiheng Hua , Changyu Hao

In this paper we consider a time-to-event variable $T$ that is subject to random right censoring, and we assume that the censoring time $C$ is stochastically dependent on $T$ and that there is a positive probability of not observing the…

统计方法学 · 统计学 2024-03-14 Morine Delhelle , Ingrid Van Keilegom

In this paper, we introduce a doubly doubly robust estimator for the average and heterogeneous treatment effect for left-truncated-right-censored (LTRC) survival data. In causal inference for survival functions in LTRC survival data, two…

综合经济学 · 经济学 2024-09-04 Guanghui Pan

Area under the ROC curve, a.k.a. AUC, is a measure of choice for assessing the performance of a classifier for imbalanced data. AUC maximization refers to a learning paradigm that learns a predictive model by directly maximizing its AUC…

机器学习 · 计算机科学 2022-08-04 Tianbao Yang , Yiming Ying

Predictive models are often required to produce reliable predictions under statistical conditions that are not matched to the training data. A common type of training-testing mismatch is covariate shift, where the conditional distribution…

机器学习 · 计算机科学 2025-01-22 Matteo Zecchin , Fredrik Hellström , Sangwoo Park , Shlomo Shamai , Osvaldo Simeone

Graph classification in medical imaging and drug discovery requires accuracy and robust uncertainty quantification. To address this need, we introduce Conditional Prediction ROC (CP-ROC) bands, offering uncertainty quantification for ROC…

机器学习 · 计算机科学 2024-10-22 Yujia Wu , Bo Yang , Elynn Chen , Yuzhou Chen , Zheshi Zheng

When evaluating medical tests or biomarkers for disease classification, the area under the receiver-operating characteristic (ROC) curve is a widely used performance metric that does not require us to commit to a specific decision…

统计方法学 · 统计学 2013-10-21 Wanhua Su , Yan Yuan , Mu Zhu

Receiver operating characteristic (ROC) analysis is widely used for evaluating diagnostic systems. Recent studies have shown that estimating an area under ROC curve (AUC) with standard cross-validation methods suffers from a large bias. The…

机器学习 · 统计学 2024-01-25 Ileana Montoya Perez , Antti Airola , Peter J. Boström , Ivan Jambor , Tapio Pahikkala

Many epidemiological and clinical studies aim at analyzing a time-to-event endpoint. A common complication is right censoring. In some cases, it arises because subjects are still surviving after the study terminates or move out of the study…

统计方法学 · 统计学 2024-01-10 Andrew Ying

In this work, we study the estimation of treatment duration effects in observational survival data, where treatment and covariate histories evolve over time and longer observed durations are only attainable among individuals who remain…

Model-free deep reinforcement learning (RL) has been successfully applied to challenging continuous control domains. However, poor sample efficiency prevents these methods from being widely used in real-world domains. This paper introduces…

机器学习 · 计算机科学 2022-10-27 Sicen Li , Qinyun Tang , Yiming Pang , Xinmeng Ma , Gang Wang

Selective classification (or classification with a reject option) pairs a classifier with a selection function to determine whether or not a prediction should be accepted. This framework trades off coverage (probability of accepting a…

机器学习 · 计算机科学 2023-02-23 Andrea Pugnana , Salvatore Ruggieri

Multiple binary responses arise in many modern data-analytic problems. Although fitting separate logistic regressions for each response is computationally attractive, it ignores shared structure and can be statistically inefficient,…

机器学习 · 统计学 2026-01-14 The Tien Mai

Time series classification is usually regarded as a distinct task from tabular data classification due to the importance of temporal information. However, in this paper, by performing permutation tests that disrupt temporal information on…

机器学习 · 计算机科学 2025-07-10 Yunrui Zhang , Gustavo Batista , Salil S. Kanhere

We develop a unified approach for classification and regression support vector machines for data subject to right censoring. We provide finite sample bounds on the generalization error of the algorithm, prove risk consistency for a wide…

机器学习 · 统计学 2013-01-15 Yair Goldberg , Michael R. Kosorok

This article proposes a Model Reference Adaptive Control (MRAC) strategy to achieve fixed-time convergence of parameter estimation and tracking errors for unknown linear time-invariant systems, without relying on the persistence of…

系统与控制 · 电气工程与系统科学 2026-04-23 Chayan Kumar Paul , Krishanu Nath , Indra Narayan Kar , Denis Efimov , Rosane Ushirobira

Free-response observer performance studies are of great importance for accuracy evaluation and comparison in tasks related to the detection and localization of multiple targets or signals. The free-response receiver operating characteristic…

统计方法学 · 统计学 2025-12-25 Jiarui Sun , Kaiyuan Liu , Xiao-Hua Zhou

Solving chance-constrained optimal control problems for systems subject to non-stationary uncertainties is a significant challenge.Conventional robust model predictive control (MPC) often yields excessive conservatism by relying on static…

系统与控制 · 电气工程与系统科学 2025-07-16 Mingcong Li