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Population synthesis is a critical task that involves generating synthetic yet realistic representations of populations. It is a fundamental problem in agent-based modeling (ABM), which has become the standard to analyze intelligent…

Machine Learning · Computer Science 2025-08-14 Min Tang , Peng Lu , Qing Feng

Traffic Intersections are vital to urban road networks as they regulate the movement of people and goods. However, they are regions of conflicting trajectories and are prone to accidents. Deep Generative models of traffic dynamics at…

Artificial Intelligence · Computer Science 2025-06-11 Yash Ranjan , Rahul Sengupta , Anand Rangarajan , Sanjay Ranka

Mobile app usage behavior reveals human patterns and is crucial for stakeholders, but data collection is costly and raises privacy issues. Data synthesis can address this by generating artificial datasets that mirror real-world data. In…

Human-Computer Interaction · Computer Science 2024-12-11 Zihan Huang , Tong Li , Yong Li

Modelling realistic human behaviours in simulation is an ongoing challenge that resides between several fields like social sciences, philosophy, and artificial intelligence. Human movement is a special type of behaviour driven by intent…

Artificial Intelligence · Computer Science 2020-12-14 A. Zonta , S. K. Smit , A. E. Eiben

We propose a unified deep learning framework for the generation and analysis of driving scenario trajectories, and validate its effectiveness in a principled way. To model and generate scenarios of trajectories with different lengths, we…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Andreas Demetriou , Henrik Alfsvåg , Sadegh Rahrovani , Morteza Haghir Chehreghani

Urban environments pose a significant challenge for autonomous vehicles (AVs) as they must safely navigate while in close proximity to many pedestrians. It is crucial for the AV to correctly understand and predict the future trajectories of…

Robotics · Computer Science 2020-02-27 Cyrus Anderson , Xiaoxiao Du , Ram Vasudevan , Matthew Johnson-Roberson

There is a need for synthetic training and test datasets that replicate statistical distributions of original datasets without compromising their confidentiality. A lot of research has been done in leveraging Generative Adversarial Networks…

Machine Learning · Computer Science 2026-02-06 Laura Plein , Alexi Turcotte , Arina Hallemans , Andreas Zeller

Realistic network traffic simulation is critical for evaluating intrusion detection systems, stress-testing network protocols, and constructing high-fidelity environments for cybersecurity training. While attack traffic can often be layered…

Cryptography and Security · Computer Science 2026-01-23 Kristen Moore , Diksha Goel , Cody James Christopher , Zhen Wang , Minjune Kim , Ahmed Ibrahim , Ahmad Mohsin , Seyit Camtepe

Trajectory generation has recently drawn growing interest in privacy-preserving urban mobility studies and location-based service applications. Although many studies have used deep learning or generative AI methods to model trajectories and…

Machine Learning · Computer Science 2026-03-25 Yuanbo Tang , Yan Tang , Zixuan Zhang , Zihui Zhao , Yang Li

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

Location-Based Social Network (LBSN) check-in trajectory data are important for many practical applications, like POI recommendation, advertising, and pandemic intervention. However, the high collection costs and ever-increasing privacy…

Machine Learning · Computer Science 2026-03-24 Rongchao Xu , Kunlin Cai , Lin Jiang , Zhiqing Hong , Yuan Tian , Guang Wang

Generative models learn the distribution of data from a sample dataset and can then generate new data instances. Recent advances in deep learning has brought forth improvements in generative model architectures, and some state-of-the-art…

Cryptography and Security · Computer Science 2021-07-30 Luke A. Bauer , Vincent Bindschaedler

This paper introduces a new generative deep learning network for human motion synthesis and control. Our key idea is to combine recurrent neural networks (RNNs) and adversarial training for human motion modeling. We first describe an…

Graphics · Computer Science 2018-06-25 Zhiyong Wang , Jinxiang Chai , Shihong Xia

This paper addresses navigation in crowded environments by integrating goal-conditioned generative models with Sampling-based Model Predictive Control (SMPC). We introduce goal-conditioned autoregressive models to generate crowd behaviors,…

Robotics · Computer Science 2024-08-08 Martin Moder , Stephen Adhisaputra , Josef Pauli

Recently, an abundant amount of urban vehicle trajectory data has been collected in road networks. Many studies have used machine learning algorithms to analyze patterns in vehicle trajectories to predict location sequences of individual…

Machine Learning · Computer Science 2021-10-01 Seongjin Choi , Jiwon Kim , Hwasoo Yeo

Message-passing graph neural networks (GNNs) excel at capturing local relationships but struggle with long-range dependencies in graphs. In contrast, graph transformers (GTs) enable global information exchange but often oversimplify the…

Machine Learning · Computer Science 2024-10-08 Dexiong Chen , Till Hendrik Schulz , Karsten Borgwardt

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

Trajectory streams are being generated from location-aware devices, such as smartphones and in-vehicle navigation systems. Due to the sensitive nature of the location data, directly sharing user trajectories suffers from privacy leakage…

Databases · Computer Science 2024-04-18 Yujia Hu , Yuntao Du , Zhikun Zhang , Ziquan Fang , Lu Chen , Kai Zheng , Yunjun Gao

Preservation of private user data is of paramount importance for high Quality of Experience (QoE) and acceptability, particularly with services treating sensitive data, such as IT-based health services. Whereas anonymization techniques were…

Machine Learning · Computer Science 2024-03-04 Navid Ashrafi , Vera Schmitt , Robert P. Spang , Sebastian Möller , Jan-Niklas Voigt-Antons

High-fidelity generative models are increasingly needed in privacy-sensitive scenarios, where access to data is severely restricted due to regulatory and copyright constraints. This scarcity hampers model development--ironically, in…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Xuemei Jia , Jiawei Du , Hui Wei , Jun Chen , Joey Tianyi Zhou , Zheng Wang