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相关论文: One-class classification with application to foren…

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One-Class Classification (OCC) is a special case of multi-class classification, where data observed during training is from a single positive class. The goal of OCC is to learn a representation and/or a classifier that enables recognition…

计算机视觉与模式识别 · 计算机科学 2021-01-11 Pramuditha Perera , Poojan Oza , Vishal M. Patel

One-class classification (OCC) algorithms aim to build classification models when the negative class is either absent, poorly sampled or not well defined. This unique situation constrains the learning of efficient classifiers by defining…

机器学习 · 计算机科学 2018-02-05 Shehroz S. Khan , Michael G. Madden

The one-class classification problem is a well-known research endeavor in pattern recognition. The problem is also known under different names, such as outlier and novelty/anomaly detection. The core of the problem consists in modeling and…

计算机视觉与模式识别 · 计算机科学 2015-03-31 Lorenzo Livi , Alireza Sadeghian , Witold Pedrycz

A number of important applied problems in engineering, finance and medicine can be formulated as a problem of anomaly detection. A classical approach to the problem is to describe a normal state using a one-class support vector machine.…

机器学习 · 统计学 2016-11-22 Evgeny Burnaev , Dmitry Smolyakov

Classification is one of the most popular and widely used supervised learning tasks, which categorizes objects into predefined classes based on known knowledge. Classification has been an important research topic in machine learning and…

机器学习 · 计算机科学 2015-03-13 Jian-Ping Mei , Chee-Keong Kwoh , Peng Yang , Xiao-Li Li

One-class classification (OCC), which models one single positive class and distinguishes it from the negative class, has been a long-standing topic with pivotal application to realms like anomaly detection. As modern society often deals…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Siqi Wang , Jiyuan Liu , Guang Yu , Xinwang Liu , Sihang Zhou , En Zhu , Yuexiang Yang , Jianping Yin

This paper proposes a novel generic one-class feature learning method based on intra-class splitting. In one-class classification, feature learning is challenging, because only samples of one class are available during training. Hence,…

机器学习 · 计算机科学 2019-11-21 Patrick Schlachter , Yiwen Liao , Bin Yang

This paper concerns open-world classification, where the classifier not only needs to classify test examples into seen classes that have appeared in training but also reject examples from unseen or novel classes that have not appeared in…

机器学习 · 计算机科学 2018-01-18 Lei Shu , Hu Xu , Bing Liu

We present a simple framework for one-class classification and anomaly detection. The core idea is to learn a mapping to transform the unknown distribution of training (normal) data to a known target distribution. Crucially, the target…

机器学习 · 计算机科学 2023-07-11 Feng Xiao , Ruoyu Sun , Jicong Fan

Inverse classification is the process of perturbing an instance in a meaningful way such that it is more likely to conform to a specific class. Historical methods that address such a problem are often framed to leverage only a single…

机器学习 · 计算机科学 2017-06-13 Michael T. Lash , Qihang Lin , W. Nick Street , Jennifer G. Robinson , Jeffrey Ohlmann

The original problem of supervised classification considers the task of automatically assigning objects to their respective classes on the basis of numerical measurements derived from these objects. Classifiers are the tools that implement…

机器学习 · 计算机科学 2017-10-26 Marco Loog

One-class classification (OCC) is a longstanding method for anomaly detection. With the powerful representation capability of the pre-trained backbone, OCC methods have witnessed significant performance improvements. Typically, most of…

计算机视觉与模式识别 · 计算机科学 2023-08-28 Han Gao , Huiyuan Luo , Fei Shen , Zhengtao Zhang

Classification is a major tool of statistics and machine learning. A classification method first processes a training set of objects with given classes (labels), with the goal of afterward assigning new objects to one of these classes. When…

机器学习 · 统计学 2024-07-08 Jakob Raymaekers , Peter J. Rousseeuw , Mia Hubert

Pattern recognition based on a high-dimensional predictor is considered. A classifier is defined which is based on a Transformer encoder. The rate of convergence of the misclassification probability of the classifier towards the optimal…

统计理论 · 数学 2021-11-30 Iryna Gurevych , Michael Kohler , Gözde Gül Sahin

Object detection methods trained on a fixed set of known classes struggle to detect objects of unknown classes in the open-world setting. Current fixes involve adding approximate supervision with pseudo-labels corresponding to candidate…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Mısra Yavuz , Fatma Güney

One-class classification (OCC), i.e., identifying whether an example belongs to the same distribution as the training data, is essential for deploying machine learning models in the real world. Adapting the pre-trained features on the…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Zilong Zhang , Zhibin Zhao , Deyu Meng , Xingwu Zhang , Xuefeng Chen

This paper introduces a statistical test inferring whether a variable allows separating two classes by means of a single critical value. Its test statistic is the prediction error of a nonparametric threshold classifier. While this approach…

统计方法学 · 统计学 2017-07-17 Fabian Schroeder

Hyperspectral imagery (HSI) one-class classification is aimed at identifying a single target class from the HSI by using only knowing positive data, which can significantly reduce the requirements for annotation. However, when one-class…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Hengwei Zhao , Yanfei Zhong , Xinyu Wang , Hong Shu

Classification is a fundamental task in machine learning and data mining. Existing classification methods are designed to classify unknown instances within a set of previously known training classes. Such a classification takes the form of…

机器学习 · 计算机科学 2018-03-02 Wajdi Dhifli , Abdoulaye Baniré Diallo

Object detection models perform well at localizing and classifying objects that they are shown during training. However, due to the difficulty and cost associated with creating and annotating detection datasets, trained models detect a…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Ayush Jaiswal , Yue Wu , Pradeep Natarajan , Premkumar Natarajan
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