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Mobility datasets are fundamental for evaluating algorithms pertaining to geographic information systems and facilitating experimental reproducibility. But privacy implications restrict sharing such datasets, as even aggregated…

Machine Learning · Computer Science 2018-12-03 Vaibhav Kulkarni , Natasa Tagasovska , Thibault Vatter , Benoit Garbinato

While self-training has advanced semi-supervised semantic segmentation, it severely suffers from the long-tailed class distribution on real-world semantic segmentation datasets that make the pseudo-labeled data bias toward majority classes.…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Ruifei He , Jihan Yang , Xiaojuan Qi

Autonomous driving has made great progress and been introduced in practical use step by step. On the other hand, the concept of personal mobility is also getting popular, and its autonomous driving specialized for individual drivers is…

Machine Learning · Computer Science 2026-02-25 Taisuke Kobayashi , Takahito Enomoto

Recent advances in sensor and mobile devices have enabled an unprecedented increase in the availability and collection of urban trajectory data, thus increasing the demand for more efficient ways to manage and analyze the data being…

Databases · Computer Science 2020-12-15 Sheng Wang , Zhifeng Bao , J. Shane Culpepper , Gao Cong

Online Multi-Object Tracking (MOT) from videos is a challenging computer vision task which has been extensively studied for decades. Most of the existing MOT algorithms are based on the Tracking-by-Detection (TBD) paradigm combined with…

Computer Vision and Pattern Recognition · Computer Science 2019-04-10 Zhen He , Jian Li , Daxue Liu , Hangen He , David Barber

Using the data from loop detector sensors for near-real-time detection of traffic incidents in highways is crucial to averting major traffic congestion. While recent supervised machine learning methods offer solutions to incident detection…

Machine Learning · Computer Science 2022-08-04 Yixuan Sun , Tanwi Mallick , Prasanna Balaprakash , Jane Macfarlane

Trajectory modeling refers to characterizing human movement behavior, serving as a pivotal step in understanding mobility patterns. Nevertheless, existing studies typically ignore the confounding effects of geospatial context, leading to…

Machine Learning · Computer Science 2024-04-23 Kang Luo , Yuanshao Zhu , Wei Chen , Kun Wang , Zhengyang Zhou , Sijie Ruan , Yuxuan Liang

Inspired by how humans combine direct interaction with action-free experience (e.g., videos), we study world models that learn from heterogeneous data. Standard world models typically rely on action-conditioned trajectories, which limits…

Machine Learning · Computer Science 2025-12-12 Marvin Alles , Xingyuan Zhang , Patrick van der Smagt , Philip Becker-Ehmck

The rapid development of 3D object detection systems for self-driving cars has significantly improved accuracy. However, these systems struggle to generalize across diverse driving environments, which can lead to safety-critical failures in…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Travis Zhang , Katie Luo , Cheng Perng Phoo , Yurong You , Wei-Lun Chao , Bharath Hariharan , Mark Campbell , Kilian Q. Weinberger

The multi-robot adaptive sampling problem aims at finding trajectories for a team of robots to efficiently sample the phenomenon of interest within a given endurance budget of the robots. In this paper, we propose a robust and scalable…

Robotics · Computer Science 2023-03-02 Lishuo Pan , Sandeep Manjanna , M. Ani Hsieh

Social navigation and pedestrian behavior research has shifted towards machine learning-based methods and converged on the topic of modeling inter-pedestrian interactions and pedestrian-robot interactions. For this, large-scale datasets…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Allan Wang , Daisuke Sato , Yasser Corzo , Sonya Simkin , Abhijat Biswas , Aaron Steinfeld

Recent years have seen a shift towards learning-based methods for trajectory prediction, with challenges remaining in addressing uncertainty and capturing multi-modal distributions. This paper introduces Temporal Ensembling with…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Kai-Yin Hong , Chieh-Chih Wang , Wen-Chieh Lin

Learning representations that generalize across tasks and domains is challenging yet necessary for autonomous systems. Although task-driven approaches are appealing, designing models specific to each application can be difficult in the face…

Robotics · Computer Science 2022-03-30 Shuang Ma , Sai Vemprala , Wenshan Wang , Jayesh K. Gupta , Yale Song , Daniel McDuff , Ashish Kapoor

Analyzing individual human trajectory data helps our understanding of human mobility and finds many commercial and academic applications. There are two main approaches to accessing trajectory data for research: one involves using real-world…

Databases · Computer Science 2024-10-17 Hossein Amiri , Richard Yang , Andreas Zufle

Research has shown that, machine learning models might inherit and propagate undesired social biases encoded in the data. To address this problem, fair training algorithms are developed. However, most algorithms assume we know…

Machine Learning · Computer Science 2022-04-12 Mustafa Safa Ozdayi , Murat Kantarcioglu , Rishabh Iyer

Modeling human mobility is vital for extensive applications such as transportation planning and epidemic modeling. With the rise of the Artificial Intelligence Generated Content (AIGC) paradigm, recent works explore synthetic trajectory…

Artificial Intelligence · Computer Science 2025-12-09 Yuxiao Luo , Songming Zhang , Sijie Ruan , Siran Chen , Kang Liu , Yang Xu , Yu Zheng , Ling Yin

Trajectory anomaly detection, aiming to estimate the anomaly risk of trajectories given the Source-Destination (SD) pairs, has become a critical problem for many real-world applications. Existing solutions directly train a generative model…

Machine Learning · Computer Science 2024-12-30 Wenbin Li , Di Yao , Chang Gong , Xiaokai Chu , Quanliang Jing , Xiaolei Zhou , Yuxuan Zhang , Yunxia Fan , Jingping Bi

Stop location detection, within human mobility studies, has an impacts in multiple fields including urban planning, transport network design, epidemiological modeling, and socio-economic segregation analysis. However, it remains a…

Machine Learning · Computer Science 2024-07-17 Margherita Bertè , Rashid Ibrahimli , Lars Koopmans , Pablo Valgañón , Nicola Zomer , Davide Colombi

Current multi-person localisation and tracking systems have an over reliance on the use of appearance models for target re-identification and almost no approaches employ a complete deep learning solution for both objectives. We present a…

Computer Vision and Pattern Recognition · Computer Science 2018-03-12 Tharindu Fernando , Simon Denman , Sridha Sridharan , Clinton Fookes

Anonymized smartphone-based mobility data has been widely adopted in devising and evaluating COVID-19 response strategies such as the targeting of public health resources. Yet little attention has been paid to measurement validity and…

Applications · Statistics 2021-04-19 Amanda Coston , Neel Guha , Derek Ouyang , Lisa Lu , Alexandra Chouldechova , Daniel E. Ho