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Out-of-Distribution (OOD) detection in computer vision is a crucial research area, with related benchmarks playing a vital role in assessing the generalizability of models and their applicability in real-world scenarios. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Alberto Bacchin , Davide Allegro , Stefano Ghidoni , Emanuele Menegatti

While most modern speech Language Identification methods are closed-set, we want to see if they can be modified and adapted for the open-set problem. When switching to the open-set problem, the solution gains the ability to reject an audio…

Computation and Language · Computer Science 2022-05-24 Mustafa Eyceoz , Justin Lee , Homayoon Beigi

Open-set recognition generalizes a classification task by classifying test samples as one of the known classes from training or "unknown." As novel cancer drug cocktails with improved treatment are continually discovered, predicting cancer…

Machine Learning · Computer Science 2022-01-11 Alexander Cao , Diego Klabjan , Yuan Luo

Land cover classification of satellite imagery is an important step toward analyzing the Earth's surface. Existing models assume a closed-set setting where both the training and testing classes belong to the same label set. However, due to…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Razieh Kaviani Baghbaderani , Ying Qu , Hairong Qi , Craig Stutts

Vision-language models (VLMs) have gained widespread attention for their strong zero-shot capabilities across numerous downstream tasks. However, these models assume that each test image's class label is drawn from a predefined label set…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Yongguang Li , Jindong Li , Qi Wang , Qianli Xing , Runliang Niu , Shengsheng Wang , Menglin Yang

Despite significant advances in document understanding, determining the correct orientation of scanned or photographed documents remains a critical pre-processing step in the real world settings. Accurate rotation correction is essential…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Suranjan Goswami , Abhinav Ravi , Raja Kolla , Ali Faraz , Shaharukh Khan , Akash , Chandra Khatri , Shubham Agarwal

With the explosive 3D data growth, the urgency of utilizing zero-shot learning to facilitate data labeling becomes evident. Recently, methods transferring language or language-image pre-training models like Contrastive Language-Image…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Weiguang Zhao , Guanyu Yang , Rui Zhang , Chenru Jiang , Chaolong Yang , Yuyao Yan , Amir Hussain , Kaizhu Huang

The advancement of remote sensing, including satellite systems, facilitates the continuous acquisition of remote sensing imagery globally, introducing novel challenges for achieving open-world tasks. Deployed models need to continuously…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Xiang Xiang , Zhuo Xu , Yao Deng , Qinhao Zhou , Yifan Liang , Ke Chen , Qingfang Zheng , Yaowei Wang , Xilin Chen , Wen Gao

As machine learning models continue to achieve impressive performance across different tasks, the importance of effective anomaly detection for such models has increased as well. It is common knowledge that even well-trained models lose…

Machine Learning · Computer Science 2023-02-23 Ramneet Kaur , Xiayan Ji , Souradeep Dutta , Michele Caprio , Yahan Yang , Elena Bernardis , Oleg Sokolsky , Insup Lee

A coreset is a subset of the training set, using which a machine learning algorithm obtains performances similar to what it would deliver if trained over the whole original data. Coreset discovery is an active and open line of research as…

Machine Learning · Computer Science 2020-02-21 Pietro Barbiero , Giovanni Squillero , Alberto Tonda

Offline Signature Verification (OSV) is a challenging pattern recognition task, especially in presence of skilled forgeries that are not available during training. This study aims to tackle its challenges and meet the substantial need for…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Saeed Masoudnia , Omid Mersa , Babak N. Araabi , Abdol-Hossein Vahabie , Mohammad Amin Sadeghi , Majid Nili Ahmadabadi

Image classification plays a pivotal role across diverse applications, yet challenges persist when models are deployed in real-world scenarios. Notably, these models falter in detecting unfamiliar classes that were not incorporated during…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Butian Xiong , Liguang Zhou , Tin Lun Lam , Yangsheng Xu

The human ability to recognize when an object belongs or does not belong to a particular vision task outperforms all open set recognition algorithms. Human perception as measured by the methods and procedures of visual psychophysics from…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Jin Huang , Derek Prijatelj , Justin Dulay , Walter Scheirer

Open-Set Object Detection (OSOD) is crucial for autonomous driving, where perception systems must recognize and localize both known and previously unseen objects in complex, dynamic environments. While recent approaches deliver promising…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yuchen Zhang , Yao Lu , Johannes Betz

In the real world, a learning system could receive an input that is unlike anything it has seen during training. Unfortunately, out-of-distribution samples can lead to unpredictable behaviour. We need to know whether any given input belongs…

Machine Learning · Computer Science 2019-08-21 Alireza Shafaei , Mark Schmidt , James J. Little

Deep metric learning aims to learn a function mapping image pixels to embedding feature vectors that model the similarity between images. Two major applications of metric learning are content-based image retrieval and face verification. For…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Andrew Zhai , Hao-Yu Wu

Open-set face recognition describes a scenario where unknown subjects, unseen during the training stage, appear on test time. Not only it requires methods that accurately identify individuals of interest, but also demands approaches that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Rafael Henrique Vareto , William Robson Schwartz

Handling novelty remains a key challenge in visual recognition systems. Existing open-set recognition (OSR) methods rely on the familiarity hypothesis, detecting novelty by the absence of familiar features. We propose a novel attenuation…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Ryan Rabinowitz , Steve Cruz , Walter Scheirer , Terrance E. Boult

Open Set Domain Adaptation (OSDA) bridges the domain gap between a labeled source domain and an unlabeled target domain, while also rejecting target classes that are not present in the source. To avoid negative transfer, OSDA can be tackled…

Computer Vision and Pattern Recognition · Computer Science 2020-07-27 Silvia Bucci , Mohammad Reza Loghmani , Tatiana Tommasi

In this paper, we aim to improve the performance of a deep learning model towards image classification tasks, proposing a novel anchor-based training methodology, named \textit{Online Anchor-based Training} (OAT). The OAT method, guided by…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Maria Tzelepi , Vasileios Mezaris