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Related papers: Large-Scale Long-Tailed Recognition in an Open Wor…

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Skeleton-based action recognition has recently made significant progress. However, data imbalance is still a great challenge in real-world scenarios. The performance of current action recognition algorithms declines sharply when training…

Computer Vision and Pattern Recognition · Computer Science 2025-02-24 Hongda Liu , Yunlong Wang , Min Ren , Junxing Hu , Zhengquan Luo , Guangqi Hou , Zhenan Sun

Contemporary autonomous vehicle (AV) benchmarks have advanced techniques for training 3D detectors. While class labels naturally follow a long-tailed distribution in the real world, existing benchmarks only focus on a few common classes…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Yechi Ma , Neehar Peri , Achal Dave , Wei Hua , Deva Ramanan , Shu Kong

Image classification in the open-world must handle out-of-distribution (OOD) images. Systems should ideally reject OOD images, or they will map atop of known classes and reduce reliability. Using open-set classifiers that can reject OOD…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Mohsen Jafarzadeh , Touqeer Ahmad , Akshay Raj Dhamija , Chunchun Li , Steve Cruz , Terrance E. Boult

Open set recognition (OSR) is a critical aspect of machine learning, addressing the challenge of detecting novel classes during inference. Within the realm of deep learning, neural classifiers trained on a closed set of data typically…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Jiawen Xu , Margret Keuper

Real-world visual recognition problems often exhibit long-tailed distributions, where the amount of data for learning in different categories shows significant imbalance. Standard classification models learned on such data distribution…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Chi Zhang , Guosheng Lin , Lvlong Lai , Henghui Ding , Qingyao Wu

Conventional multi-label classification (MLC) methods assume that all samples are fully labeled and identically distributed. Unfortunately, this assumption is unrealistic in large-scale MLC data that has long-tailed (LT) distribution and…

Machine Learning · Computer Science 2023-04-24 Wenqiao Zhang , Changshuo Liu , Lingze Zeng , Beng Chin Ooi , Siliang Tang , Yueting Zhuang

Anomaly detection (AD) identifies the defect regions of a given image. Recent works have studied AD, focusing on learning AD without abnormal images, with long-tailed distributed training data, and using a unified model for all classes. In…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Chiao-An Yang , Kuan-Chuan Peng , Raymond A. Yeh

Most existing methods that cope with noisy labels usually assume that the class distributions are well balanced, which has insufficient capacity to deal with the practical scenarios where training samples have imbalanced distributions. To…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Chaowei Fang , Lechao Cheng , Huiyan Qi , Dingwen Zhang

The problem of deep long-tailed learning, a prevalent challenge in the realm of generic visual recognition, persists in a multitude of real-world applications. To tackle the heavily-skewed dataset issue in long-tailed classification, prior…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Wenxiang Xu , Yongcheng Jing , Linyun Zhou , Wenqi Huang , Lechao Cheng , Zunlei Feng , Mingli Song

State-of-the-art deep neural network recognition systems are designed for a static and closed world. It is usually assumed that the distribution at test time will be the same as the distribution during training. As a result, classifiers are…

Computer Vision and Pattern Recognition · Computer Science 2019-02-28 Benjamin J. Meyer , Tom Drummond

Recognizing driving behaviors is important for downstream tasks such as reasoning, planning, and navigation. Existing video recognition approaches work well for common behaviors (e.g. "drive straight", "brake", "turn left/right"). However,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Chirag Parikh , Ravi Shankar Mishra , Rohan Chandra , Ravi Kiran Sarvadevabhatla

We introduce OTTER, a unified open-set multi-label tagging framework that harmonizes the stability of a curated, predefined category set with the adaptability of user-driven open tags. OTTER is built upon a large-scale, hierarchically…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Jieer Ouyang , Xiaoneng Xiang , Zheng Wang , Yangkai Ding

The long-tailed class distribution in visual recognition tasks poses great challenges for neural networks on how to handle the biased predictions between head and tail classes, i.e., the model tends to classify tail classes as head classes.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yidong Wang , Bowen Zhang , Wenxin Hou , Zhen Wu , Jindong Wang , Takahiro Shinozaki

As a consequence of an ever-increasing number of service robots, there is a growing demand for highly accurate real-time 3D object recognition. Considering the expansion of robot applications in more complex and dynamic environments,it is…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Nils Keunecke , S. Hamidreza Kasaei

Deep neural networks frequently suffer from performance degradation when the training data is long-tailed because several majority classes dominate the training, resulting in a biased model. Recent studies have made a great effort in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Mengke Li , Yiu-ming Cheung , Juyong Jiang

Out-of-distribution detection (OOD) is a pivotal task for real-world applications that trains models to identify samples that are distributionally different from the in-distribution (ID) data during testing. Recent advances in AI,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Chaohua Li , Enhao Zhang , Chuanxing Geng , Songcan Chen

Traditional semi-supervised object detection methods assume a fixed set of object classes (in-distribution or ID classes) during training and deployment, which limits performance in real-world scenarios where unseen classes…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Garvita Allabadi , Ana Lucic , Siddarth Aananth , Tiffany Yang , Yu-Xiong Wang , Vikram Adve

A key challenge for LiDAR-based 3D object detection is to capture sufficient features from large scale 3D scenes especially for distant or/and occluded objects. Albeit recent efforts made by Transformers with the long sequence modeling…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Chao Zhou , Yanan Zhang , Jiaxin Chen , Di Huang

There has been significant progress in creating machine learning models that identify objects in scenes along with their associated attributes and relationships; however, there is a large gap between the best models and human capabilities.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Tyler L. Hayes , Maximilian Nickel , Christopher Kanan , Ludovic Denoyer , Arthur Szlam

In the real world, long-tailed data distributions are prevalent, making it challenging for models to effectively learn and classify tail classes. However, we discover that in the field of drug chemistry, certain tail classes exhibit higher…

Machine Learning · Computer Science 2025-04-08 Yujia Su , Xinjie Li , Lionel Z. Wang