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Urban datasets such as citizen transportation modes often contain disproportionately distributed classes, posing significant challenges to the classification of under-represented samples using data-driven models. In the literature, various…

机器学习 · 计算机科学 2025-04-15 Guang An Ooi , Shehab Ahmed

In reinforcement learning-based (RL-based) traffic signal control (TSC), decisions on the signal timing are made based on the available information on vehicles at a road intersection. This forms the state representation for the RL…

系统与控制 · 电气工程与系统科学 2024-11-13 Lawrence Francis , Blessed Guda , Ahmed Biyabani

Scene text recognition (STR) and handwritten text recognition (HTR) face significant challenges in accurately transcribing textual content from images into machine-readable formats. Conventional OCR models often predict transcriptions…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Xu Yao , Lei Kang

Traffic signs are important in communicating information to drivers. Thus, comprehension of traffic signs is essential for road safety and ignorance may result in road accidents. Traffic sign detection has been a research spotlight over the…

计算机视觉与模式识别 · 计算机科学 2024-04-12 Mayura Manawadu , Udaya Wijenayake

Efficient traffic signal control is essential for managing urban transportation, minimizing congestion, and improving safety and sustainability. Reinforcement Learning (RL) has emerged as a promising approach to enhancing adaptive traffic…

机器学习 · 计算机科学 2024-09-18 Xiaoyu Wang , Ayal Taitler , Scott Sanner , Baher Abdulhai

Accurate recognition and interpretation of sign language are crucial for enhancing communication accessibility for deaf and hard of hearing individuals. However, current approaches of Isolated Sign Language Recognition (ISLR) often face…

计算机视觉与模式识别 · 计算机科学 2025-05-14 Karina Kvanchiani , Roman Kraynov , Elizaveta Petrova , Petr Surovcev , Aleksandr Nagaev , Alexander Kapitanov

Recent work has focused on generating synthetic imagery to increase the size and variability of training data for learning visual tasks in urban scenes. This includes increasing the occurrence of occlusions or varying environmental and…

计算机视觉与模式识别 · 计算机科学 2018-10-03 Alexandra Carlson , Katherine A. Skinner , Ram Vasudevan , Matthew Johnson-Roberson

The control of traffic signals is fundamental and critical to alleviate traffic congestion in urban areas. However, it is challenging since traffic dynamics are complicated in real-world scenarios. Because of the high complexity of the…

系统与控制 · 电气工程与系统科学 2021-05-10 Hu Wang , Hao Chen , Qi Wu , Congbo Ma , Yidong Li , Chunhua Shen

Traffic signal control has the potential to reduce congestion in dynamic networks. Recent studies show that traffic signal control with reinforcement learning (RL) methods can significantly reduce the average waiting time. However, a…

系统与控制 · 电气工程与系统科学 2024-06-13 Maonan Wang , Yutong Xu , Xi Xiong , Yuheng Kan , Chengcheng Xu , Man-On Pun

Deep learning has been successfully applied to several problems related to autonomous driving. Often, these solutions rely on large networks that require databases of real image samples of the problem (i.e., real world) for proper training.…

计算机视觉与模式识别 · 计算机科学 2020-07-13 Lucas Tabelini Torres , Thiago M. Paixão , Rodrigo F. Berriel , Alberto F. De Souza , Claudine Badue , Nicu Sebe , Thiago Oliveira-Santos

Despite the rapid growth in datasets for video activity, stable robust activity recognition with neural networks remains challenging. This is in large part due to the explosion of possible variation in video -- including lighting changes,…

计算机视觉与模式识别 · 计算机科学 2019-12-04 Yi Zhang , Xinyue Wei , Weichao Qiu , Zihao Xiao , Gregory D. Hager , Alan Yuille

Existing scene text recognition (STR) methods struggle to recognize challenging texts, especially for artistic and severely distorted characters. The limitation lies in the insufficient exploration of character morphologies, including the…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Yadong Qu , Yuxin Wang , Bangbang Zhou , Zixiao Wang , Hongtao Xie , Yongdong Zhang

Learning from imbalanced data is one of the most significant challenges in real-world classification tasks. In such cases, neural networks performance is substantially impaired due to preference towards the majority class. Existing…

机器学习 · 计算机科学 2022-11-13 Bronislav Yasinnik , Moshe Salhov , Ofir Lindenbaum , Amir Averbuch

Despite remarkable progress on visual recognition tasks, deep neural-nets still struggle to generalize well when training data is scarce or highly imbalanced, rendering them extremely vulnerable to real-world examples. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Shiran Zada , Itay Benou , Michal Irani

The increasing number of autonomous vehicles and the rapid development of computer vision technologies underscore the particular importance of conducting research on the accuracy of traffic sign recognition. Numerous studies in this field…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Gulnaz Gimaletdinova , Dim Shaiakhmetov , Madina Akpaeva , Mukhammadmuso Abduzhabbarov , Kadyrmamat Momunov

Large-scale and categorical-balanced text data is essential for training effective Scene Text Recognition (STR) models, which is hard to achieve when collecting real data. Synthetic data offers a cost-effective and perfectly labeled…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Xingsong Ye , Yongkun Du , JiaXin Zhang , Chen Li , Jing Lyu , Zhineng Chen

As part of autonomous car driving systems, semantic segmentation is an essential component to obtain a full understanding of the car's environment. One difficulty, that occurs while training neural networks for this purpose, is class…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Robin Chan , Matthias Rottmann , Fabian Hüger , Peter Schlicht , Hanno Gottschalk

We consider object recognition in the context of lifelong learning, where a robotic agent learns to discriminate between a growing number of object classes as it accumulates experience about the environment. We propose an incremental…

Data augmentation has been proven to be an effective technique for developing machine learning models that are robust to known classes of distributional shifts (e.g., rotations of images), and alignment regularization is a technique often…

机器学习 · 计算机科学 2022-06-07 Haohan Wang , Zeyi Huang , Xindi Wu , Eric P. Xing

Self-supervised Learning (SSL) including the mainstream contrastive learning has achieved great success in learning visual representations without data annotations. However, most of methods mainly focus on the instance level information…

计算机视觉与模式识别 · 计算机科学 2021-07-26 Mingkai Zheng , Shan You , Fei Wang , Chen Qian , Changshui Zhang , Xiaogang Wang , Chang Xu