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Pervasive integration of GPS-enabled devices and data acquisition technologies has led to an exponential increase in GPS trajectory data, fostering advancements in spatial-temporal data mining research. Nonetheless, GPS trajectories contain…

Machine Learning · Computer Science 2023-10-25 Yuanshao Zhu , Yongchao Ye , Shiyao Zhang , Xiangyu Zhao , James J. Q. Yu

Increasing and massive volumes of trajectory data are being accumulated that may serve a variety of applications, such as mining popular routes or identifying ridesharing candidates. As storing and querying massive trajectory data is…

Databases · Computer Science 2023-12-14 Zheng Wang , Cheng Long , Gao Cong , Christian S. Jensen

Data augmentation is a series of techniques that generate high-quality artificial data by manipulating existing data samples. By leveraging data augmentation techniques, AI models can achieve significantly improved applicability in tasks…

Machine Learning · Computer Science 2025-10-16 Zaitian Wang , Pengfei Wang , Kunpeng Liu , Pengyang Wang , Yanjie Fu , Chang-Tien Lu , Charu C. Aggarwal , Jian Pei , Yuanchun Zhou

Data augmentation is a crucial technique in deep learning, particularly for tasks with limited dataset diversity, such as skeleton-based datasets. This paper proposes a comprehensive data augmentation framework that integrates geometric…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Nada Aboudeshish , Dmitry Ignatov , Radu Timofte

Data augmentation is practically helpful for visual recognition, especially at the time of data scarcity. However, such success is only limited to quite a few light augmentations (e.g., random crop, flip). Heavy augmentations are either…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Yalong Bai , Mohan Zhou , Wei Zhang , Bowen Zhou , Tao Mei

Advances in tracking technologies have spurred the rapid growth of large-scale trajectory data. Building a compact collection of pathlets, referred to as a trajectory pathlet dictionary, is essential for supporting mobility-related…

Machine Learning · Computer Science 2024-12-06 Gian Alix , Arian Haghparast , Manos Papagelis

Data augmentation is a crucial technique for training robust deep learning models for human motion, where annotated datasets are often scarce. However, generic augmentation methods often ignore the underlying geometric and kinematic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Bikram De , Habib Irani , Vangelis Metsis

Data augmentation is a widely used trick when training deep neural networks: in addition to the original data, properly transformed data are also added to the training set. However, to the best of our knowledge, a clear mathematical…

Machine Learning · Statistics 2020-11-10 Shuxiao Chen , Edgar Dobriban , Jane H Lee

Accumulating substantial volumes of real-world driving data proves pivotal in the realm of trajectory forecasting for autonomous driving. Given the heavy reliance of current trajectory forecasting models on data-driven methodologies, we aim…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Yiheng Li , Seth Z. Zhao , Chenfeng Xu , Chen Tang , Chenran Li , Mingyu Ding , Masayoshi Tomizuka , Wei Zhan

There are several confounding factors that can reduce the accuracy of gait recognition systems. These factors can reduce the distinctiveness, or alter the features used to characterise gait, they include variations in clothing, lighting,…

Computer Vision and Pattern Recognition · Computer Science 2016-10-25 Christoforos C. Charalambous , Anil A. Bharath

Data augmentation (DA) is widely employed to improve the generalization performance of deep models. However, most existing DA methods employ augmentation operations with fixed or random magnitudes throughout the training process. While this…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Suorong Yang , Peijia Li , Xin Xiong , Furao Shen , Jian Zhao

Data augmentation is a widely used training trick in deep learning to improve the network generalization ability. Despite many encouraging results, several recent studies did point out limitations of the conventional data augmentation…

Machine Learning · Computer Science 2020-10-06 Yi Xu , Asaf Noy , Ming Lin , Qi Qian , Hao Li , Rong Jin

We present PointAugment, a new auto-augmentation framework that automatically optimizes and augments point cloud samples to enrich the data diversity when we train a classification network. Different from existing auto-augmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Ruihui Li , Xianzhi Li , Pheng-Ann Heng , Chi-Wing Fu

Due to long-distance correlation and powerful pretrained models, transformer-based methods have initiated a breakthrough in visual object tracking performance. Previous works focus on designing effective architectures suited for tracking,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Jie Zhao , Johan Edstedt , Michael Felsberg , Dong Wang , Huchuan Lu

Data augmentation using generative models has emerged as a powerful paradigm for enhancing performance in computer vision tasks. However, most existing augmentation approaches primarily focus on optimizing intrinsic data attributes -- such…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Jiyu Guo , Shuo Yang , Yiming Huang , Yancheng Long , Xiaobo Xia , Xiu Su , Bo Zhao , Zeke Xie , Liqiang Nie

In the realm of visual recognition, data augmentation stands out as a pivotal technique to amplify model robustness. Yet, a considerable number of existing methodologies lean heavily on heuristic foundations, rendering their intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Zhendong Liu , Jie Zhang , Qiangqiang He , Chongjun Wang

Deep learning-based models, such as recurrent neural networks (RNNs), have been applied to various sequence learning tasks with great success. Following this, these models are increasingly replacing classic approaches in object tracking…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Stefan Becker , Ronny Hug , Wolfgang Hübner , Michael Arens , Brendan T. Morris

Although recent tool-augmented benchmarks involve complex requests, evaluation remains limited to answer matching, neglecting critical trajectory aspects like efficiency, hallucination, and adaptivity. The most straightforward method for…

Artificial Intelligence · Computer Science 2026-05-26 Wonjoong Kim , Sangwu Park , Yeonjun In , Sein Kim , Dongha Lee , Chanyoung Park

Mobility trajectories are essential for understanding urban dynamics and enhancing urban planning, yet access to such data is frequently hindered by privacy concerns. This research introduces a transformative framework for generating…

While data-driven trajectory prediction has enhanced the reliability of autonomous driving systems, it still struggles with rarely observed long-tail scenarios. Prior works addressed this by modifying model architectures, such as using…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Daehee Park , Monu Surana , Pranav Desai , Ashish Mehta , Reuben MV John , Kuk-Jin Yoon