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Recognizing a traffic accident is an essential part of any autonomous driving or road monitoring system. An accident can appear in a wide variety of forms, and understanding what type of accident is taking place may be useful to prevent it…

计算机视觉与模式识别 · 计算机科学 2025-01-10 Aaron Lohner , Francesco Compagno , Jonathan Francis , Alessandro Oltramari

Automated driving object detection has always been a challenging task in computer vision due to environmental uncertainties. These uncertainties include significant differences in object sizes and encountering the class unseen. It may…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Zezhou Wang , Guitao Cao , Xidong Xi , Jiangtao Wang

Many meta-learning methods are proposed for few-shot detection. However, previous most methods have two main problems, poor detection APs, and strong bias because of imbalance and insufficient datasets. Previous works mainly alleviate these…

计算机视觉与模式识别 · 计算机科学 2021-06-16 Qian Li , Nan Guo , Xiaochun Ye , Duo Wang , Dongrui Fan , Zhimin Tang

This text is a survey on cross-validation. We define all classical cross-validation procedures, and we study their properties for two different goals: estimating the risk of a given estimator, and selecting the best estimator among a given…

统计理论 · 数学 2017-03-10 Sylvain Arlot

This paper proposes an easy-to-use method for one-class classification: Repeated Element-wise Folding (REF). The algorithm consists of repeatedly standardizing and applying an element-wise folding operation on the one-class training data.…

机器学习 · 计算机科学 2025-06-19 Jenni Raitoharju

Binary classification is a task that involves the classification of data into one of two distinct classes. It is widely utilized in various fields. However, conventional classifiers tend to make overconfident predictions for data that…

机器学习 · 计算机科学 2025-03-13 Shoma Yokura , Akihisa Ichiki

Ordinal categorical data are widely collected in psychology, education, and other social sciences, appearing commonly in questionnaires, assessments, and surveys. Latent class models provide a flexible framework for uncovering unobserved…

机器学习 · 统计学 2026-02-26 Huan Qing

Fair classification aims to stress the classification models to achieve the equality (treatment or prediction quality) among different sensitive groups. However, fair classification can be under the risk of poisoning attacks that…

机器学习 · 计算机科学 2022-10-19 Han Xu , Xiaorui Liu , Yuxuan Wan , Jiliang Tang

Object detection is a task that performs position identification and label classification of objects in images or videos. The information obtained through this process plays an essential role in various tasks in the field of computer…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Heewon Lee , Sangtae Ahn

Camera model identification refers to the problem of linking a picture to the camera model used to shoot it. As this might be an enabling factor in different forensic applications to single out possible suspects (e.g., detecting the author…

计算机视觉与模式识别 · 计算机科学 2019-11-15 Pedro Ribeiro Mendes Júnior , Luca Bondi , Paolo Bestagini , Stefano Tubaro , Anderson Rocha

This paper presents a conformal prediction method for classification in highly imbalanced and open-set settings, where there are many possible classes and not all may be represented in the data. Existing approaches require a finite, known…

机器学习 · 统计学 2025-10-16 Tianmin Xie , Yanfei Zhou , Ziyi Liang , Stefano Favaro , Matteo Sesia

Traditional supervised learning makes the closed-world assumption that the classes appeared in the test data must have appeared in training. This also applies to text learning or text classification. As learning is used increasingly in…

计算与语言 · 计算机科学 2017-09-27 Lei Shu , Hu Xu , Bing Liu

Tomal et al. (2015) introduced the notion of "phalanxes" in the context of rare-class detection in two-class classification problems. A phalanx is a subset of features that work well for classification tasks. In this paper, we propose a…

机器学习 · 统计学 2017-07-05 Hongyang Zhang , William J. Welch , Ruben H. Zamar

In this paper, a progressive learning technique for multi-class classification is proposed. This newly developed learning technique is independent of the number of class constraints and it can learn new classes while still retaining the…

机器学习 · 计算机科学 2017-01-24 Rajasekar Venkatesan , Meng Joo Er

We consider training probabilistic classifiers in the case of a large number of classes. The number of classes is assumed too large to perform exact normalisation over all classes. To account for this we consider a simple approach that…

机器学习 · 统计学 2016-07-08 David Barber , Aleksandar Botev

Classification is an important statistical learning tool. In real application, besides high prediction accuracy, it is often desirable to estimate class conditional probabilities for new observations. For traditional problems where the…

统计理论 · 数学 2025-03-18 Guo Xian Yau , Chong Zhang

Knowing when a classifier's prediction can be trusted is useful in many applications and critical for safely using AI. While the bulk of the effort in machine learning research has been towards improving classifier performance,…

机器学习 · 统计学 2018-10-30 Heinrich Jiang , Been Kim , Melody Y. Guan , Maya Gupta

Object detection has recently achieved a breakthrough for removing the last one non-differentiable component in the pipeline, Non-Maximum Suppression (NMS), and building up an end-to-end system. However, what makes for its one-to-one…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Peize Sun , Yi Jiang , Enze Xie , Wenqi Shao , Zehuan Yuan , Changhu Wang , Ping Luo

An open scientific challenge is how to classify events with reliable measures of uncertainty, when we have a mechanistic model of the data-generating process but the distribution over both labels and latent nuisance parameters is different…

机器学习 · 统计学 2024-07-02 Luca Masserano , Alex Shen , Michele Doro , Tommaso Dorigo , Rafael Izbicki , Ann B. Lee

Although few-shot learning and one-class classification (OCC), i.e., learning a binary classifier with data from only one class, have been separately well studied, their intersection remains rather unexplored. Our work addresses the…

机器学习 · 计算机科学 2021-02-12 Ahmed Frikha , Denis Krompaß , Hans-Georg Köpken , Volker Tresp