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Supervised deep learning methods for segmentation require large amounts of labelled training data, without which they are prone to overfitting, not generalizing well to unseen images. In practice, obtaining a large number of annotations…

Computer Vision and Pattern Recognition · Computer Science 2019-03-01 Krishna Chaitanya , Neerav Karani , Christian Baumgartner , Olivio Donati , Anton Becker , Ender Konukoglu

Autonomous vehicles are expected to drive in complex scenarios with several independent non cooperating agents. Path planning for safely navigating in such environments can not just rely on perceiving present location and motion of other…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Francesco Marchetti , Federico Becattini , Lorenzo Seidenari , Alberto Del Bimbo

A considerable amount of mobility data has been accumulated due to the proliferation of location-based service. Nevertheless, compared with mobility data from transportation systems like the GPS module in taxis, this kind of data is…

Machine Learning · Computer Science 2021-01-05 Tong Xia , Yunhan Qi , Jie Feng , Fengli Xu , Funing Sun , Diansheng Guo , Yong Li

Robust data association is critical for analysis of long-term motion trajectories in complex scenes. In its absence, trajectory precision suffers due to periods of kinematic ambiguity degrading the quality of follow-on analysis. Common…

Machine Learning · Computer Science 2020-11-17 David S. Hayden , Sue Zheng , John W. Fisher

Large Language Models (LLMs) such as GPT-4 and Llama3 have significantly impacted various fields by enabling high-quality synthetic data generation and reducing dependence on expensive human-generated datasets. Despite this, challenges…

Computation and Language · Computer Science 2025-11-18 Yue Huang , Siyuan Wu , Chujie Gao , Dongping Chen , Qihui Zhang , Yao Wan , Tianyi Zhou , Jianfeng Gao , Chaowei Xiao , Lichao Sun , Xiangliang Zhang

Robust lane detection is essential for advanced driver assistance and autonomous driving, yet models trained on public datasets such as CULane often fail to generalise across different camera viewpoints. This paper addresses the challenge…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Flora Lian , Dinh Quang Huynh , Hector Penades , J. Stephany Berrio Perez , Mao Shan , Stewart Worrall

Tracking a point through a video can be a challenging task due to uncertainty arising from visual obfuscations, such as appearance changes and occlusions. Although current state-of-the-art discriminative models excel in regressing long-term…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Mattie Tesfaldet , Adam W. Harley , Konstantinos G. Derpanis , Derek Nowrouzezahrai , Christopher Pal

Predicting pedestrian motion trajectories is crucial for path planning and motion control of autonomous vehicles. Accurately forecasting crowd trajectories is challenging due to the uncertain nature of human motions in different…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Yu Liu , Yuexin Zhang , Kunming Li , Yongliang Qiao , Stewart Worrall , You-Fu Li , He Kong

The real-time segmentation of drivable areas plays a vital role in accomplishing autonomous perception in cars. Recently there have been some rapid strides in the development of image segmentation models using deep learning. However, most…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Srinjoy Bhuiya , Ayushman Kumar , Sankalok Sen

Offline reinforcement learning (RL) enables agents to learn optimal policies from pre-collected datasets. However, datasets containing suboptimal and fragmented trajectories present challenges for reward propagation, resulting in inaccurate…

Machine Learning · Computer Science 2025-12-17 Hang Yu , Di Zhang , Qiwei Du , Yanping Zhao , Hai Zhang , Guang Chen , Eduardo E. Veas , Junqiao Zhao

Flight diversions are rare but high-impact events in aviation, making their reliable prediction vital for both safety and operational efficiency. However, their scarcity in historical records impedes the training of machine learning models…

Machine Learning · Computer Science 2026-04-23 Karim Aly , Alexei Sharpanskykh , Jacco Hoekstra

Dynamic data selection aims to accelerate training with lossless performance. However, reducing training data inherently limits data diversity, potentially hindering generalization. While data augmentation is widely used to enhance…

Machine Learning · Computer Science 2025-05-13 Suorong Yang , Peng Ye , Furao Shen , Dongzhan Zhou

Datasets are essential to train and evaluate computer vision models used for traffic analysis and to enhance road safety. Existing real datasets fit real-world scenarios, capturing authentic road object behaviors, however, they typically…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Simone Teglia , Claudia Melis Tonti , Francesco Pro , Leonardo Russo , Andrea Alfarano , Leonardo Pentassuglia , Irene Amerini

While large-scale pre-training has advanced human trajectory prediction, a critical challenge remains: zero-shot transfer to unseen dataset with varying temporal dynamics. State-of-the-art pre-trained models often require fine-tuning to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Yang Gao , Po-Chien Luan , Kaouther Messaoud , Lan Feng , Alexandre Alahi

User mobility modeling serves a crucial role in analysis and optimization of contemporary wireless networks. Typical stochastic mobility models, e.g., random waypoint model and Gauss Markov model, can hardly capture the distribution…

Artificial Intelligence · Computer Science 2024-07-30 Zhenyu Tao , Wei Xu , Xiaohu You

Modeling dynamic graphs, such as those found in social networks, recommendation systems, and e-commerce platforms, is crucial for capturing evolving relationships and delivering relevant insights over time. Traditional approaches primarily…

Machine Learning · Computer Science 2025-04-29 Yuxia Wu , Lizi Liao , Yuan Fang

Pedestrian Attribute Recognition (PAR) is a challenging task as models are required to generalize across numerous attributes in real-world data. Traditional approaches focus on complex methods, yet recognition performance is often…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Alejandro Alonso , Sawaiz A. Chaudhry , Juan C. SanMiguel , Álvaro García-Martín , Pablo Ayuso-Albizu , Pablo Carballeira

The current Air Traffic Management (ATM) system worldwide has reached its limits in terms of predictability, efficiency and cost effectiveness. Different initiatives worldwide propose trajectory-oriented transformations that require high…

Machine Learning · Computer Science 2020-05-19 Alevizos Bastas , Theocharis Kravaris , George A. Vouros

Recent successes in Generative Adversarial Networks (GAN) have affirmed the importance of using more data in GAN training. Yet it is expensive to collect data in many domains such as medical applications. Data Augmentation (DA) has been…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Ngoc-Trung Tran , Viet-Hung Tran , Ngoc-Bao Nguyen , Trung-Kien Nguyen , Ngai-Man Cheung

The success of Large Language Models (LLMs) is inherently linked to the availability of vast, diverse, and high-quality data for training and evaluation. However, the growth rate of high-quality data is significantly outpaced by the…

Computation and Language · Computer Science 2024-10-18 Ke Wang , Jiahui Zhu , Minjie Ren , Zeming Liu , Shiwei Li , Zongye Zhang , Chenkai Zhang , Xiaoyu Wu , Qiqi Zhan , Qingjie Liu , Yunhong Wang