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Contrastive learning relies on constructing a collection of negative examples that are sufficiently hard to discriminate against positive queries when their representations are self-trained. Existing contrastive learning methods either…

机器学习 · 计算机科学 2021-03-08 Qianjiang Hu , Xiao Wang , Wei Hu , Guo-Jun Qi

Selective recruitment designs preferentially recruit individuals that are estimated to be statistically informative onto a clinical trial. Individuals that are expected to contribute less information have a lower probability of recruitment.…

统计理论 · 数学 2017-05-31 James E. Barrett

This research addresses the challenge of conducting interpretable causal inference between a binary treatment and its resulting outcome when not all confounders are known. Confounders are factors that have an influence on both the treatment…

机器学习 · 计算机科学 2023-10-24 Sohaib Kiani , Jared Barton , Jon Sushinsky , Lynda Heimbach , Bo Luo

We study settings in which a researcher has an instrumental variable (IV) and seeks to evaluate the effects of a counterfactual policy that alters treatment assignment, such as a directive encouraging randomly assigned judges to release…

计量经济学 · 经济学 2026-03-16 Michal Kolesár , José Luis Montiel Olea , Jonathan Roth

Popular Natural Language Inference (NLI) datasets have been shown to be tainted by hypothesis-only biases. Adversarial learning may help models ignore sensitive biases and spurious correlations in data. We evaluate whether adversarial…

计算与语言 · 计算机科学 2019-07-11 Yonatan Belinkov , Adam Poliak , Stuart M. Shieber , Benjamin Van Durme , Alexander M. Rush

Data privacy is an increasingly important aspect of many real-world Data sources that contain sensitive information may have immense potential which could be unlocked using the right privacy enhancing transformations, but current methods…

机器学习 · 计算机科学 2021-02-09 John Martinsson , Edvin Listo Zec , Daniel Gillblad , Olof Mogren

Automated decision making systems are increasingly being used in real-world applications. In these systems for the most part, the decision rules are derived by minimizing the training error on the available historical data. Therefore, if…

机器学习 · 计算机科学 2018-07-31 AmirEmad Ghassami , Sajad Khodadadian , Negar Kiyavash

Predictive modeling is increasingly being employed to assist human decision-makers. One purported advantage of replacing or augmenting human judgment with computer models in high stakes settings-- such as sentencing, hiring, policing,…

应用统计 · 统计学 2017-03-16 James E. Johndrow , Kristian Lum

We present a novel method of learning style-agnostic representation using both style transfer and adversarial learning in the reinforcement learning framework. The style, here, refers to task-irrelevant details such as the color of the…

计算机视觉与模式识别 · 计算机科学 2022-09-01 Juyong Lee , Seokjun Ahn , Jaesik Park

We derive a formal, decision-based method for comparing the performance of counterfactual treatment regime predictions using the results of experiments that give relevant information on the distribution of treated outcomes. Our approach…

统计方法学 · 统计学 2019-07-24 Michael Gechter , Cyrus Samii , Rajeev Dehejia , Cristian Pop-Eleches

Adversarial training is by far the most successful strategy for improving robustness of neural networks to adversarial attacks. Despite its success as a defense mechanism, adversarial training fails to generalize well to unperturbed test…

机器学习 · 计算机科学 2019-10-18 Yogesh Balaji , Tom Goldstein , Judy Hoffman

We present a Bayesian view of counterfactual risk minimization (CRM) for offline learning from logged bandit feedback. Using PAC-Bayesian analysis, we derive a new generalization bound for the truncated inverse propensity score estimator.…

机器学习 · 计算机科学 2020-04-03 Ben London , Ted Sandler

Reinforcement learning algorithms are generally designed to maximize the expected return across a population. However, a policy that is optimal on average may be suboptimal for certain individuals, leading to potential safety concerns. To…

机器学习 · 统计学 2026-05-26 Jingyi Li , Peng Wu , Chengchun Shi

We propose InfoChess, a symmetric adversarial game that elevates competitive information acquisition to the primary objective. There is no piece capture, removing material incentives that would otherwise confound the role of information.…

多智能体系统 · 计算机科学 2026-04-20 Kieran A. Murphy

Counterfactual learning to rank (CLTR) relies on exposure-based inverse propensity scoring (IPS), a LTR-specific adaptation of IPS to correct for position bias. While IPS can provide unbiased and consistent estimates, it often suffers from…

信息检索 · 计算机科学 2023-05-03 Shashank Gupta , Harrie Oosterhuis , Maarten de Rijke

A critical factor in trustworthy machine learning is to develop robust representations of the training data. Only under this guarantee methods are legitimate to artificially generate data, for example, to counteract imbalanced datasets or…

机器学习 · 计算机科学 2024-12-12 Leon Scharwächter , Sebastian Otte

Adversarial examples causing evasive predictions are widely used to evaluate and improve the robustness of machine learning models. However, current studies focus on supervised learning tasks, relying on the ground-truth data label, a…

机器学习 · 计算机科学 2021-12-09 Chia-Yi Hsu , Pin-Yu Chen , Songtao Lu , Sijia Liu , Chia-Mu Yu

Prediction credibility measures, in the form of confidence intervals or probability distributions, are fundamental in statistics and machine learning to characterize model robustness, detect out-of-distribution samples (outliers), and…

机器学习 · 计算机科学 2020-11-26 Luiz F. O. Chamon , Santiago Paternain , Alejandro Ribeiro

The information bottleneck (IB) principle has been adopted to explain deep learning in terms of information compression and prediction, which are balanced by a trade-off hyperparameter. How to optimize the IB principle for better robustness…

机器学习 · 计算机科学 2021-03-04 Penglong Zhai , Shihua Zhang

Counterfactual fairness methods address the question: How would the prediction change if the sensitive identity attributes referenced in the text instance were different? These methods are entirely based on generating counterfactuals for…

计算与语言 · 计算机科学 2022-03-08 Mohit Wadhwa , Mohan Bhambhani , Ashvini Jindal , Uma Sawant , Ramanujam Madhavan