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Since acquiring perfect supervision is usually difficult, real-world machine learning tasks often confront inaccurate, incomplete, or inexact supervision, collectively referred to as weak supervision. In this work, we present WSAUC, a…

机器学习 · 计算机科学 2024-03-28 Zheng Xie , Yu Liu , Hao-Yuan He , Ming Li , Zhi-Hua Zhou

When determining which machine learning model best performs some high impact risk assessment task, practitioners commonly use the Area under the Curve (AUC) to defend and validate their model choices. In this paper, we argue that the…

计算机与社会 · 计算机科学 2023-05-30 Kweku Kwegyir-Aggrey , Marissa Gerchick , Malika Mohan , Aaron Horowitz , Suresh Venkatasubramanian

Receiver Operating Characteristic (ROC) curves are useful for evaluation in binary classification and changepoint detection, but difficult to use for learning since the Area Under the Curve (AUC) is piecewise constant (gradient zero almost…

机器学习 · 计算机科学 2024-10-14 Jadon Fowler , Toby Dylan Hocking

Adequate evaluation of an information retrieval system to estimate future performance is a crucial task. Area under the ROC curve (AUC) is widely used to evaluate the generalization of a retrieval system. However, the objective function…

信息检索 · 计算机科学 2016-04-26 Sean J. Welleck

Reinforcement learning (RL) effectively optimizes Large Language Model (LLM)-based recommenders by contrasting positive and negative items. Empirically, training with beam-search negatives consistently outperforms random negatives, yet the…

信息检索 · 计算机科学 2026-04-27 Wentao Shi , Qifan Wang , Chen Chen , Fei Liu , Dongfang Liu , Xu Liu , Wanli Ma , Junfeng Pan , Linhong Zhu , Fuli Feng

In machine learning (ML), a widespread claim is that the area under the precision-recall curve (AUPRC) is a superior metric for model comparison to the area under the receiver operating characteristic (AUROC) for tasks with class imbalance.…

To assess the classification accuracy of a continuous diagnostic result, the receiver operating characteristic (ROC) curve is commonly used in applications. The partial area under the ROC curve (pAUC) is one of widely accepted summary…

应用统计 · 统计学 2011-03-11 Hung Hung , Chin-Tsang Chiang

The area under the receiver-operating characteristic curve (AUC) has become a popular index not only for measuring the overall prediction capacity of a marker but also the association strength between continuous and binary variables. In the…

统计方法学 · 统计学 2023-10-12 Pablo Martinez-Camblor , Sonia Perez-Fernandez , Lucas L. Dwiel , Wilder T. Doucette

We propose a method for maximizing a partial area under a receiver operating characteristic (ROC) curve (pAUC) for binary classification tasks. In binary classification tasks, accuracy is the most commonly used as a measure of classifier…

机器学习 · 统计学 2018-06-14 Naonori Ueda , Akinori Fujino

AUC (area under ROC curve) is an important evaluation criterion, which has been popularly used in many learning tasks such as class-imbalance learning, cost-sensitive learning, learning to rank, etc. Many learning approaches try to optimize…

机器学习 · 计算机科学 2020-07-07 Wei Gao , Zhi-Hua Zhou

Learning to optimize the area under the receiver operating characteristics curve (AUC) performance for imbalanced data has attracted much attention in recent years. Although there have been several methods of AUC optimization, scaling up…

机器学习 · 计算机科学 2024-10-28 Chao Wang , Kai Wu , Jing Liu

Area Under the Curve (AUC) is arguably the most popular measure of classification accuracy. We use a semiparametric framework to introduce a latent scale-invariant $R^2$, a novel measure of variation explained for an observed binary outcome…

统计方法学 · 统计学 2019-11-01 Debangan Dey , Vadim Zipunnikov

Throughout science and technology, receiver operating characteristic (ROC) curves and associated area under the curve (AUC) measures constitute powerful tools for assessing the predictive abilities of features, markers and tests in binary…

机器学习 · 统计学 2021-06-25 Tilmann Gneiting , Eva-Maria Walz

The area under the ROC curve (AUC) is the standard measure of a biomarker's discriminatory accuracy; however, naive AUC estimates can be misleading when validation cohorts differ from the intended target population. Such covariate shifts…

统计方法学 · 统计学 2025-11-20 Jiajun Liu , Guangcai Mao , Xiaofei Wang

The area under the ROC curve (AUROC) has been vigorously applied for imbalanced classification and moreover combined with deep learning techniques. However, there is no existing work that provides sound information for peers to choose…

机器学习 · 计算机科学 2022-07-06 Dixian Zhu , Xiaodong Wu , Tianbao Yang

Machine learning (ML) is increasingly employed in real-world applications like medicine or economics, thus, potentially affecting large populations. However, ML models often do not perform homogeneously, leading to underperformance or,…

机器学习 · 计算机科学 2025-08-28 Tom Siegl , Kutalmış Coşkun , Bjarne C. Hiller , Amin Mirzaei , Florian Lemmerich , Martin Becker

The Area Under Curve measure (AUC) seems apt to evaluate and compare diverse models, possibly without calibration. An important example of AUC application is the evaluation and benchmarking of models that predict faithfulness of generated…

计算与语言 · 计算机科学 2024-05-28 Juri Opitz

The predictive quality of machine learning models is typically measured in terms of their (approximate) expected prediction error or the so-called Area Under the Curve (AUC) for a particular data distribution. However, when the models are…

机器学习 · 计算机科学 2018-02-08 Hiva Ghanbari , Katya Scheinberg

It is well-known that deep learning models are vulnerable to adversarial examples. Existing studies of adversarial training have made great progress against this challenge. As a typical trait, they often assume that the class distribution…

机器学习 · 计算机科学 2022-06-27 Wenzheng Hou , Qianqian Xu , Zhiyong Yang , Shilong Bao , Yuan He , Qingming Huang

In analysis of binary outcomes, the receiver operator characteristic (ROC) curve is heavily used to show the performance of a model or algorithm. The ROC curve is informative about the performance over a series of thresholds and can be…

统计计算 · 统计学 2020-08-10 John Muschelli