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Data augmentation is a technique to improve the generalization ability of machine learning methods by increasing the size of the dataset. However, since every augmentation method is not equally effective for every dataset, you need to…

Machine Learning · Computer Science 2022-05-31 Daisuke Oba , Shinnosuke Matsuo , Brian Kenji Iwana

3D multi-object tracking and trajectory prediction are two crucial modules in autonomous driving systems. Generally, the two tasks are handled separately in traditional paradigms and a few methods have started to explore modeling these two…

Computer Vision and Pattern Recognition · Computer Science 2024-07-01 Jiaheng Zhuang , Guoan Wang , Siyu Zhang , Xiyang Wang , Hangning Zhou , Ziyao Xu , Chi Zhang , Zhiheng Li

Reliable anticipation of pedestrian trajectory is imperative for the operation of autonomous vehicles and can significantly enhance the functionality of advanced driver assistance systems. While significant progress has been made in the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Olly Styles , Arun Ross , Victor Sanchez

Trajectory data has the potential to greatly benefit a wide-range of real-world applications, such as tracking the spread of the disease through people's movement patterns and providing personalized location-based services based on travel…

Databases · Computer Science 2023-10-16 Yuntao Du , Yujia Hu , Zhikun Zhang , Ziquan Fang , Lu Chen , Baihua Zheng , Yunjun Gao

Accurate human trajectory prediction is crucial for robotics navigation and autonomous driving. Recent research has demonstrated that incorporating goal guidance significantly enhances prediction accuracy by reducing uncertainty and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Ge Sun , Jun Ma

In recent years, autonomous driving has significantly in creased the demand for high-quality data to train 2D and 3D perception models for safety-critical scenarios. Real world datasets struggle to meet this demand as require ments…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Arka Bhowmick , Enes Ozeren , Ahmed Abdullah , Oliver Wasenmuller

4-dimensional (4D) radar is increasingly adopted in autonomous driving for perception tasks, owing to its robustness under adverse weather conditions. To better utilize the spatial information inherent in 4D radar data, recent deep learning…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Woo-Jin Jung , Dong-Hee Paek , Seung-Hyun Kong

The generation of realistic and controllable GPS trajectories is a fundamental task for applications in urban planning, mobility simulation, and privacy-preserving data sharing. However, existing methods face a two-fold challenge: they lack…

Artificial Intelligence · Computer Science 2026-05-05 Yuanshao Zhu , Yuxuan Liang , Xiangyu Zhao , Liang Han , Xinwei Fang , Xun Zhou , Xuetao Wei , James Jianqiao Yu

Human mobility modeling from GPS-trajectories and synthetic trajectory generation are crucial for various applications, such as urban planning, disaster management and epidemiology. Both of these tasks often require filling gaps in a…

Machine Learning · Computer Science 2024-11-08 Shang-Ling Hsu , Emmanuel Tung , John Krumm , Cyrus Shahabi , Khurram Shafique

It has been demonstrated that the amount of data is crucial in data-driven machine learning methods. Data is always valuable, but in some tasks, it is almost like gold. This occurs in engineering areas where data is scarce or very expensive…

Artificial Intelligence · Computer Science 2023-12-12 David Solis-Martin , Juan Galan-Paez , Joaquin Borrego-Diaz

The increasing popularity of online services has made Internet Traffic Classification a critical field of study. However, the rapid development of internet protocols and encryption limits usable data availability. This paper addresses the…

Machine Learning · Computer Science 2024-07-24 Yehonatan Zion , Porat Aharon , Ran Dubin , Amit Dvir , Chen Hajaj

Human trajectory forecasting requires capturing the multimodal nature of pedestrian behavior. However, existing approaches suffer from prior misalignment. Their learned or fixed priors often fail to capture the full distribution of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Chao Li , Rui Zhang , Siyuan Huang , Xian Zhong , Hongbo Jiang

Data augmentation as a technique can mitigate data scarcity in machine learning. However, owing to fundamental differences in wireless data structures, traditional data augmentation techniques may not be suitable for wireless data.…

Networking and Internet Architecture · Computer Science 2025-09-11 Jinbo Wen , Jiawen Kang , Dusit Niyato , Yang Zhang , Jiacheng Wang , Biplab Sikdar , Ping Zhang

Data augmentation plays a key role in modern machine learning pipelines. While numerous augmentation strategies have been studied in the context of computer vision and natural language processing, less is known for other data modalities.…

Machine Learning · Statistics 2022-05-23 Elliott Gordon-Rodriguez , Thomas P. Quinn , John P. Cunningham

Predicting the next position of movable objects has been a problem for at least the last three decades, referred to as trajectory prediction. In our days, the vast amounts of data being continuously produced add the big data dimension to…

Understanding human mobility is essential for applications in public health, transportation, and urban planning. However, mobility data often suffers from sparsity due to limitations in data collection methods, such as infrequent GPS…

Machine Learning · Computer Science 2025-07-08 Hao Yang , Angela Yao , Christopher Whalen , Gengchen Mai

Recent work has shown that data augmentation has the potential to significantly improve the generalization of deep learning models. Recently, automated augmentation strategies have led to state-of-the-art results in image classification and…

Computer Vision and Pattern Recognition · Computer Science 2019-11-15 Ekin D. Cubuk , Barret Zoph , Jonathon Shlens , Quoc V. Le

Data augmentation methods enrich datasets with augmented data to improve the performance of neural networks. Recently, automated data augmentation methods have emerged, which automatically design augmentation strategies. Existing work…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Misgana Negassi , Diane Wagner , Alexander Reiterer

Deep Learning has seen an unprecedented increase in vision applications since the publication of large-scale object recognition datasets and introduction of scalable compute hardware. State-of-the-art methods for most vision tasks for…

Computer Vision and Pattern Recognition · Computer Science 2020-04-30 Nikita Jaipuria , Xianling Zhang , Rohan Bhasin , Mayar Arafa , Punarjay Chakravarty , Shubham Shrivastava , Sagar Manglani , Vidya N. Murali

Image data augmentation constitutes a critical methodology in modern computer vision tasks, since it can facilitate towards enhancing the diversity and quality of training datasets; thereby, improving the performance and robustness of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Panagiotis Alimisis , Ioannis Mademlis , Panagiotis Radoglou-Grammatikis , Panagiotis Sarigiannidis , Georgios Th. Papadopoulos