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It is not uncommon that real-world data are distributed with a long tail. For such data, the learning of deep neural networks becomes challenging because it is hard to classify tail classes correctly. In the literature, several existing…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Mengke Li , Yiu-ming Cheung , Yang Lu , Zhikai Hu , Weichao Lan , Hui Huang

This paper proposes a new pipeline for long-tail (LT) recognition. Instead of re-weighting or re-sampling, we utilize the long-tailed dataset itself to generate a balanced proxy that can be optimized through cross-entropy (CE).…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Jie Shao , Ke Zhu , Hanxiao Zhang , Jianxin Wu

Long-tail distributions in driving datasets pose a fundamental challenge for 3D perception, as rare classes exhibit substantial intra-class diversity yet available samples cover this variation space only sparsely. Existing instance…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Jumin Lee , Siyeong Lee , Namil Kim , Sung-Eui Yoon

Modeling the 3D world from sensor data for simulation is a scalable way of developing testing and validation environments for robotic learning problems such as autonomous driving. However, manually creating or re-creating real-world-like…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Bokui Shen , Xinchen Yan , Charles R. Qi , Mahyar Najibi , Boyang Deng , Leonidas Guibas , Yin Zhou , Dragomir Anguelov

Training on datasets with long-tailed distributions has been challenging for major recognition tasks such as classification and detection. To deal with this challenge, image resampling is typically introduced as a simple but effective…

Computer Vision and Pattern Recognition · Computer Science 2021-10-20 Nadine Chang , Zhiding Yu , Yu-Xiong Wang , Anima Anandkumar , Sanja Fidler , Jose M. Alvarez

Classification on long-tailed distributed data is a challenging problem, which suffers from serious class-imbalance and hence poor performance on tail classes with only a few samples. Owing to this paucity of samples, learning on the tail…

Computation and Language · Computer Science 2022-07-25 Taha ValizadehAslani , Yiwen Shi , Jing Wang , Ping Ren , Yi Zhang , Meng Hu , Liang Zhao , Hualou Liang

Autonomous driving training requires a diverse range of datasets encompassing various traffic conditions, weather scenarios, and road types. Traditional data augmentation methods often struggle to generate datasets that represent rare…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Yongjie Fu , Yunlong Li , Xuan Di

Real-world imagery is often characterized by a significant imbalance of the number of images per class, leading to long-tailed distributions. An effective and simple approach to long-tailed visual recognition is to learn feature…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Ahmet Iscen , André Araujo , Boqing Gong , Cordelia Schmid

Recognizing images with long-tailed distributions remains a challenging problem while there lacks an interpretable mechanism to solve this problem. In this study, we formulate Long-tailed recognition as Domain Adaption (LDA), by modeling…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Zhiliang Peng , Wei Huang , Zonghao Guo , Xiaosong Zhang , Jianbin Jiao , Qixiang Ye

Controllable generation is considered a potentially vital approach to address the challenge of annotating 3D data, and the precision of such controllable generation becomes particularly imperative in the context of data production for…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Jinhua Zhang , Hualian Sheng , Sijia Cai , Bing Deng , Qiao Liang , Wen Li , Ying Fu , Jieping Ye , Shuhang Gu

Recent years have seen remarkable progress in autonomous driving, yet generalization to long-tail and open-world scenarios remains a major bottleneck for large-scale deployment. To address this challenge, some works use LLMs and VLMs for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Hao Shao , Letian Wang , Yang Zhou , Yuxuan Hu , Zhuofan Zong , Steven L. Waslander , Wei Zhan , Hongsheng Li

We focus on bridging domain discrepancy in lane detection among different scenarios to greatly reduce extra annotation and re-training costs for autonomous driving. Critical factors hinder the performance improvement of cross-domain lane…

Computer Vision and Pattern Recognition · Computer Science 2022-11-10 Chenguang Li , Boheng Zhang , Jia Shi , Guangliang Cheng

In this paper, we present an effective data augmentation framework leveraging the Large Language Model (LLM) and Diffusion Model (DM) to tackle the challenges inherent in data-scarce scenarios. Recently, DMs have opened up the possibility…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Kyuheon Jung , Yongdeuk Seo , Seongwoo Cho , Jaeyoung Kim , Hyun-seok Min , Sungchul Choi

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

In the real world, data tends to follow long-tailed distributions w.r.t. class or attribution, motivating the challenging Long-Tailed Recognition (LTR) problem. In this paper, we revisit recent LTR methods with promising Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Zhengzhuo Xu , Shuo Yang , Xingjun Wang , Chun Yuan

Sequential recommendation (SR) learns user preferences based on their historical interaction sequences and provides personalized suggestions. In real-world scenarios, most users can only interact with a handful of items, while the majority…

Information Retrieval · Computer Science 2026-01-19 Yizhou Dang , Zhifu Wei , Minhan Huang , Lianbo Ma , Jianzhe Zhao , Guibing Guo , Xingwei Wang

A thorough and holistic scene understanding is crucial for autonomous vehicles, where LiDAR semantic segmentation plays an indispensable role. However, most existing methods focus on the network design while neglecting the inherent…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Peishan Cong , Xinge Zhu , Yuexin Ma

Real-world training data usually exhibits long-tailed distribution, where several majority classes have a significantly larger number of samples than the remaining minority classes. This imbalance degrades the performance of typical…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Shuang Li , Kaixiong Gong , Chi Harold Liu , Yulin Wang , Feng Qiao , Xinjing Cheng

Latent Dirichlet Allocation (LDA) is a prominent generative probabilistic model used for uncovering abstract topics within document collections. In this paper, we explore the effectiveness of augmenting topic models with Large Language…

Computation and Language · Computer Science 2025-07-14 Mengze Hong , Chen Jason Zhang , Di Jiang

Generating varied scenarios through simulation is crucial for training and evaluating safety-critical systems, such as autonomous vehicles. Yet, the task of modeling the trajectories of other vehicles to simulate diverse and meaningful…

Robotics · Computer Science 2024-06-07 Phat Nguyen , Tsun-Hsuan Wang , Zhang-Wei Hong , Sertac Karaman , Daniela Rus