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The goal of classification with rejection is to avoid risky misclassification in error-critical applications such as medical diagnosis and product inspection. In this paper, based on the relationship between classification with rejection…

机器学习 · 统计学 2021-09-30 Nontawat Charoenphakdee , Zhenghang Cui , Yivan Zhang , Masashi Sugiyama

In document classification for, e.g., legal and biomedical text, we often deal with hundreds of classes, including very infrequent ones, as well as temporal concept drift caused by the influence of real world events, e.g., policy changes,…

计算与语言 · 计算机科学 2022-03-16 Ilias Chalkidis , Anders Søgaard

Miscalibration in deep learning refers to there is a discrepancy between the predicted confidence and performance. This problem usually arises due to the overfitting problem, which is characterized by learning everything presented in the…

机器学习 · 计算机科学 2024-07-16 Zongbo Han , Yifeng Yang , Changqing Zhang , Linjun Zhang , Joey Tianyi Zhou , Qinghua Hu

The cost of labeling data often limits the performance of machine learning systems. In multi-task learning, related tasks provide information to each other and improve overall performance, but the label cost can vary among tasks. How should…

机器学习 · 计算机科学 2023-08-25 Ximeng Sun , Kihyuk Sohn , Kate Saenko , Clayton Mellina , Xiao Bian

A widely used algorithm for transfer learning is fine-tuning, where a pre-trained model is fine-tuned on a target task with a small amount of labeled data. When the capacity of the pre-trained model is significantly larger than the size of…

机器学习 · 计算机科学 2025-08-15 Dongyue Li , Hongyang R. Zhang

Online structure learning approaches, such as those stemming from Statistical Relational Learning, enable the discovery of complex relations in noisy data streams. However, these methods assume the existence of fully-labelled training data,…

人工智能 · 计算机科学 2019-02-21 Evangelos Michelioudakis , Alexander Artikis , Georgios Paliouras

Regularization is an effective way to promote the generalization performance of machine learning models. In this paper, we focus on label smoothing, a form of output distribution regularization that prevents overfitting of a neural network…

机器学习 · 计算机科学 2020-07-07 Weizhi Li , Gautam Dasarathy , Visar Berisha

Self-training is an important technique for solving semi-supervised learning problems. It leverages unlabeled data by generating pseudo-labels and combining them with a limited labeled dataset for training. The effectiveness of…

机器学习 · 计算机科学 2023-11-06 Banghua Zhu , Mingyu Ding , Philip Jacobson , Ming Wu , Wei Zhan , Michael Jordan , Jiantao Jiao

The labeling cost of large number of bounding boxes is one of the main challenges for training modern object detectors. To reduce the dependence on expensive bounding box annotations, we propose a new semi-supervised object detection…

计算机视觉与模式识别 · 计算机科学 2018-12-04 JIyang Gao , Jiang Wang , Shengyang Dai , Li-Jia Li , Ram Nevatia

Acquisition of training data for the standard semantic segmentation is expensive if requiring that each pixel is labeled. Yet, current methods significantly deteriorate in weakly supervised settings, e.g. where a fraction of pixels is…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Dmitrii Marin , Yuri Boykov

In multi-label classification, each training instance is associated with multiple class labels simultaneously. Unfortunately, collecting the fully precise class labels for each training instance is time- and labor-consuming for real-world…

机器学习 · 计算机科学 2024-03-26 Meng Wei , Zhongnian Li , Peng Ying , Yong Zhou , Xinzheng Xu

This paper addresses a multi-label predictive fault classification problem for multidimensional time-series data. While fault (event) detection problems have been thoroughly studied in literature, most of the state-of-the-art techniques…

机器学习 · 计算机科学 2020-01-29 Wenyu Zhang , Devesh K. Jha , Emil Laftchiev , Daniel Nikovski

Deep learning perception models require a massive amount of labeled training data to achieve good performance. While unlabeled data is easy to acquire, the cost of labeling is prohibitive and could create a tremendous burden on companies or…

计算机视觉与模式识别 · 计算机科学 2021-11-19 Xinnan Du , William Zhang , Jose M. Alvarez

Preference-based reinforcement learning (PbRL) promises to learn a complex reward function with binary human preference. However, such human-in-the-loop formulation requires considerable human effort to assign preference labels to segment…

机器学习 · 计算机科学 2023-07-20 Yachen Kang , Li He , Jinxin Liu , Zifeng Zhuang , Donglin Wang

To scale optimization and simulation, prior work has explored training machine-learning surrogates that map problem parameters to solutions inexpensively at inference time. Unfortunately, commonly used approaches, including supervised and…

机器学习 · 计算机科学 2026-05-12 Khai Nguyen , Petros Ellinas , Anvita Bhagavathula , Priya L. Donti

In hierarchical multi-label classification, a persistent challenge is enabling model predictions to reach deeper levels of the hierarchy for more detailed or fine-grained classifications. This difficulty partly arises from the natural…

机器学习 · 计算机科学 2026-02-10 Isaac Xu , Martin Gillis , Ayushi Sharma , Benjamin Misiuk , Craig J. Brown , Thomas Trappenberg

Learning with noisy labels is one of the hottest problems in weakly-supervised learning. Based on memorization effects of deep neural networks, training on small-loss instances becomes very promising for handling noisy labels. This fosters…

机器学习 · 计算机科学 2019-05-14 Xingrui Yu , Bo Han , Jiangchao Yao , Gang Niu , Ivor W. Tsang , Masashi Sugiyama

Semi-supervised learning (SSL) seeks to enhance task performance by training on both labeled and unlabeled data. Mainstream SSL image classification methods mostly optimize a loss that additively combines a supervised classification…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Zhe Huang , Xiaowei Yu , Dajiang Zhu , Michael C. Hughes

Learning with noisy labels (LNL) aims at designing strategies to improve model performance and generalization by mitigating the effects of model overfitting to noisy labels. The key success of LNL lies in identifying as many clean samples…

计算机视觉与模式识别 · 计算机科学 2022-08-08 Jichang Li , Guanbin Li , Feng Liu , Yizhou Yu

Uncertainty calibration is crucial for various machine learning applications, yet it remains challenging. Many models exhibit hallucinations - confident yet inaccurate responses - due to miscalibrated confidence. Here, we show that the…

机器学习 · 计算机科学 2025-03-28 Jeonghwan Cheon , Se-Bum Paik