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Understanding how people move in the urban area is important for solving urbanization issues, such as traffic management, urban planning, epidemic control, and communication network improvement. Leveraging recent availability of large…

Social and Information Networks · Computer Science 2019-05-27 Yuren Zhou , Billy Pik Lik Lau , Chau Yuen , Bige Tunçer , Erik Wilhelm

Clustering in dynamic environments is of increasing importance, with broad applications ranging from real-time data analysis and online unsupervised learning to dynamic facility location problems. While meta-heuristics have shown promising…

Synthetic datasets are important for evaluating and testing machine learning models. When evaluating real-life recommender systems, high-dimensional categorical (and sparse) datasets are often considered. Unfortunately, there are not many…

Information Retrieval · Computer Science 2024-12-11 Miha Malenšek , Blaž Škrlj , Blaž Mramor , Jure Demšar

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

Generally, crowd datasets can be collected or generated from real or synthetic sources. Real data is generated by using infrastructure-based sensors (such as static cameras or other sensors). The use of simulation tools can significantly…

Computer Vision and Pattern Recognition · Computer Science 2023-04-27 Paweł Foszner , Agnieszka Szczęsna , Luca Ciampi , Nicola Messina , Adam Cygan , Bartosz Bizoń , Michał Cogiel , Dominik Golba , Elżbieta Macioszek , Michał Staniszewski

Deep neural networks have become prevalent in human analysis, boosting the performance of applications, such as biometric recognition, action recognition, as well as person re-identification. However, the performance of such networks scales…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Indu Joshi , Marcel Grimmer , Christian Rathgeb , Christoph Busch , Francois Bremond , Antitza Dantcheva

Clustering trajectory data attracted considerable attention in the last few years. Most of prior work assumed that moving objects can move freely in an euclidean space and did not consider the eventual presence of an underlying road network…

Machine Learning · Computer Science 2013-10-22 Mohamed Khalil El Mahrsi , Fabrice Rossi

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…

Machine Learning · Computer Science 2025-04-15 Guang An Ooi , Shehab Ahmed

Pedestrian intention prediction is crucial for autonomous driving. In particular, knowing if pedestrians are going to cross in front of the ego-vehicle is core to performing safe and comfortable maneuvers. Creating accurate and fast models…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Muhammad Naveed Riaz , Maciej Wielgosz , Abel Garcia Romera , Antonio M. Lopez

Research into, and design and construction of mobile systems and algorithms requires access to large-scale mobility data. Unfortunately, the wireless and mobile research community lacks such data. For instance, the largest available human…

Networking and Internet Architecture · Computer Science 2009-09-21 Pan Hui , Richard Mortier , Tristan Henderson , Jon Crowcroft

Existing adversarial example research focuses on digitally inserted perturbations on top of existing natural image datasets. This construction of adversarial examples is not realistic because it may be difficult, or even impossible, for an…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Xiruo Liu , Shibani Singh , Cory Cornelius , Colin Busho , Mike Tan , Anindya Paul , Jason Martin

Time-to-Contact (TTC) estimation is a critical task for assessing collision risk and is widely used in various driver assistance and autonomous driving systems. The past few decades have witnessed development of related theories and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Yuheng Shi , Zehao Huang , Yan Yan , Naiyan Wang , Xiaojie Guo

Advancements in foundation models have catalyzed research in Embodied AI to develop interactive agents capable of environmental reasoning and interaction. Developing such agents requires diverse, large-scale datasets. Prior frameworks…

Robotics · Computer Science 2026-02-10 Siddharth Singh , Ifrah Idrees , Abraham Dauhajre

Understanding of the mechanisms driving our daily face-to-face encounters is still limited; the field lacks large-scale datasets describing both individual behaviors and their collective interactions. However, here, with the help of travel…

Physics and Society · Physics 2013-08-07 Lijun Sun , Kay W. Axhausen , Der-Horng Lee , Xianfeng Huang

Deep learning-based methods for video pedestrian detection and tracking require large volumes of training data to achieve good performance. However, data acquisition in crowded public environments raises data privacy concerns -- we are not…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Matteo Fabbri , Guillem Braso , Gianluca Maugeri , Orcun Cetintas , Riccardo Gasparini , Aljosa Osep , Simone Calderara , Laura Leal-Taixe , Rita Cucchiara

Object recognition and object pose estimation in robotic grasping continue to be significant challenges, since building a labelled dataset can be time consuming and financially costly in terms of data collection and annotation. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Dongmyoung Lee , Wei Chen , Nicolas Rojas

Identifying mobility behaviors in rich trajectory data is of great economic and social interest to various applications including urban planning, marketing and intelligence. Existing work on trajectory clustering often relies on similarity…

Machine Learning · Computer Science 2020-03-04 Mingxuan Yue , Yaguang Li , Haoze Yang , Ritesh Ahuja , Yao-Yi Chiang , Cyrus Shahabi

In causal inference with observational studies, synthetic control (SC) has emerged as a prominent tool. SC has traditionally been applied to aggregate-level datasets, but more recent work has extended its use to individual-level data. As…

Machine Learning · Computer Science 2025-03-28 Saeyoung Rho , Andrew Tang , Noah Bergam , Rachel Cummings , Vishal Misra

Realistic and diverse traffic scenarios in large quantities are crucial for the development and validation of autonomous driving systems. However, owing to numerous difficulties in the data collection process and the reliance on intensive…

Robotics · Computer Science 2025-10-07 Shuo Sun , Zekai Gu , Tianchen Sun , Jiawei Sun , Chengran Yuan , Yuhang Han , Dongen Li , Marcelo H. Ang

Short-term future of automated driving can be imagined as a hybrid scenario in which both automated and human-driven vehicles co-exist in the same environment. In order to address the needs of such road configuration, many technology…

Signal Processing · Electrical Eng. & Systems 2020-08-24 Behrad Toghi , Divas Grover , Mahdi Razzaghpour , Rajat Jain , Rodolfo Valiente , Mahdi Zaman , Ghayoor Shah , Yaser P. Fallah