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Related papers: Hybrid Models for Open Set Recognition

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Open-set supervised anomaly detection (OSAD) - a recently emerging anomaly detection area - aims at utilizing a few samples of anomaly classes seen during training to detect unseen anomalies (i.e., samples from open-set anomaly classes),…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Jiawen Zhu , Choubo Ding , Yu Tian , Guansong Pang

When neural networks are employed for high-stakes decision-making, it is desirable that they provide explanations for their prediction in order for us to understand the features that have contributed to the decision. At the same time, it is…

Machine Learning · Computer Science 2022-05-10 Penny Chong , Ngai-Man Cheung , Yuval Elovici , Alexander Binder

Addressing the Out-of-Distribution (OoD) segmentation task is a prerequisite for perception systems operating in an open-world environment. Large foundational models are frequently used in downstream tasks, however, their potential for OoD…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Nazir Nayal , Youssef Shoeb , Fatma Güney

Feature selection places an important role in improving the performance of outlier detection, especially for noisy data. Existing methods usually perform feature selection and outlier scoring separately, which would select feature subsets…

Machine Learning · Computer Science 2020-01-17 Li Cheng , Yijie Wang , Xinwang Liu , Bin Li

Assuming unknown classes could be present during classification, the open set recognition (OSR) task aims to classify an instance into a known class or reject it as unknown. In this paper, we use a two-stage training strategy for the OSR…

Computer Vision and Pattern Recognition · Computer Science 2022-09-30 Jingyun Jia , Philip K. Chan

Modern machine learning-based recognition approaches require large-scale datasets with large number of labelled training images. However, such datasets are inherently difficult and costly to collect and annotate. Hence there is a great and…

Machine Learning · Computer Science 2019-12-30 Yanwei Fu , De-An Huang , Leonid Sigal

Deep metric learning aims to learn an embedding space where the distance between data reflects their class equivalence, even when their classes are unseen during training. However, the limited number of classes available in training…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Kyungmoon Lee , Sungyeon Kim , Seunghoon Hong , Suha Kwak

With the of advent rich classification models and high computational power visual recognition systems have found many operational applications. Recognition in the real world poses multiple challenges that are not apparent in controlled lab…

Computer Vision and Pattern Recognition · Computer Science 2015-12-01 Abhijit Bendale , Terrance Boult

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,…

Machine Learning · Computer Science 2019-11-21 Patrick Schlachter , Yiwen Liao , Bin Yang

We consider the problem of discovering novel object categories in an image collection. While these images are unlabelled, we also assume prior knowledge of related but different image classes. We use such prior knowledge to reduce the…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Kai Han , Andrea Vedaldi , Andrew Zisserman

Open set recognition is an emerging research area that aims to simultaneously classify samples from predefined classes and identify the rest as 'unknown'. In this process, one of the key challenges is to reduce the risk of generalizing the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Guangyao Chen , Limeng Qiao , Yemin Shi , Peixi Peng , Jia Li , Tiejun Huang , Shiliang Pu , Yonghong Tian

This paper proposes a deep representation learning using an information-theoretic loss with an aim to increase the inter-class distances as well as within-class similarity in the embedded space. Tasks such as anomaly and out-of-distribution…

Machine Learning · Computer Science 2022-02-08 Shin Ando

In open-set recognition, existing methods generally learn statically fixed decision boundaries using known classes to reject unknown classes. Though they have achieved promising results, such decision boundaries are evidently insufficient…

Machine Learning · Computer Science 2024-05-06 Haifeng Yang , Chuanxing Geng , Pong C. Yuen , Songcan Chen

At present, object recognition studies are mostly conducted in a closed lab setting with classes in test phase typically in training phase. However, real-world problem is far more challenging because: i) new classes unseen in the training…

Machine Learning · Computer Science 2020-03-24 Xiaojie Guo , Amir Alipour-Fanid , Lingfei Wu , Hemant Purohit , Xiang Chen , Kai Zeng , Liang Zhao

The recent, counter-intuitive discovery that deep generative models (DGMs) can frequently assign a higher likelihood to outliers has implications for both outlier detection applications as well as our overall understanding of generative…

Machine Learning · Statistics 2020-10-27 Ziyu Wang , Bin Dai , David Wipf , Jun Zhu

A serious problem in image classification is that a trained model might perform well for input data that originates from the same distribution as the data available for model training, but performs much worse for out-of-distribution (OOD)…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Rajat Koner , Poulami Sinhamahapatra , Karsten Roscher , Stephan Günnemann , Volker Tresp

Due to the intractability of characterizing everything that looks unlike the normal data, anomaly detection (AD) is traditionally treated as an unsupervised problem utilizing only normal samples. However, it has recently been found that…

Computer Vision and Pattern Recognition · Computer Science 2023-01-29 Philipp Liznerski , Lukas Ruff , Robert A. Vandermeulen , Billy Joe Franks , Klaus-Robert Müller , Marius Kloft

The goal of confidence-set learning in the binary classification setting is to construct two sets, each with a specific probability guarantee to cover a class. An observation outside the overlap of the two sets is deemed to be from one of…

Machine Learning · Statistics 2018-10-01 Wenbo Wang , Xingye Qiao

Real-world scenarios pose several challenges to deep learning based computer vision techniques despite their tremendous success in research. Deeper models provide better performance, but are challenging to deploy and knowledge distillation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Ayush Bhardwaj , Sakshee Pimpale , Saurabh Kumar , Biplab Banerjee

Remote sensing image segmentation faces persistent challenges in distinguishing morphologically similar categories and adapting to diverse scene variations. While existing methods rely on implicit representation learning paradigms, they…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Xuechao Zou , Yue Li , Shun Zhang , Kai Li , Shiying Wang , Pin Tao , Junliang Xing , Congyan Lang