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Human mobility trajectories are widely studied in public health and social science, where different demographic groups exhibit significantly different mobility patterns. However, existing trajectory generation models rarely capture this…

机器学习 · 计算机科学 2026-03-04 Jessie Z. Li , Zhiqing Hong , Toru Shirakawa , Serina Chang

Camouflaging data by generating fake information is a well-known obfuscation technique for protecting data privacy. In this paper, we focus on a very sensitive and increasingly exposed type of data: location data. There are two main…

密码学与安全 · 计算机科学 2015-05-29 Vincent Bindschaedler , Reza Shokri

Mobile motion sensors such as accelerometers and gyroscopes are now ubiquitously accessible by third-party apps via standard APIs. While enabling rich functionalities like activity recognition and step counting, this openness has also…

密码学与安全 · 计算机科学 2025-11-25 Tianle Song , Chenhao Lin , Yang Cao , Zhengyu Zhao , Jiahao Sun , Chong Zhang , Le Yang , Chao Shen

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…

数据库 · 计算机科学 2024-04-18 Yujia Hu , Yuntao Du , Zhikun Zhang , Ziquan Fang , Lu Chen , Kai Zheng , Yunjun Gao

Generative Adversarial Networks (GANs) are one of the well-known models to generate synthetic data including images, especially for research communities that cannot use original sensitive datasets because they are not publicly accessible.…

机器学习 · 计算机科学 2020-01-28 Reihaneh Torkzadehmahani , Peter Kairouz , Benedict Paten

With cooperative perception, autonomous vehicles can wirelessly share sensor data and representations to overcome sensor occlusions, improving situational awareness. Securing such data exchanges is crucial for connected autonomous vehicles.…

The importance of personal mobility data is widely recognized in various fields. However, the utilization of real personal mobility data raises privacy concerns. Therefore, it is crucial to generate pseudo personal mobility data that…

计算机与社会 · 计算机科学 2023-12-19 Peiran Li , Haoran Zhang , Wenjing Li , Dou Huang , Jinyu Chen , Junxiang Zhang , Xuan Song , Pengjun Zhao , Shibasaki Ryosuke

Large and well-annotated datasets are essential for advancing deep learning applications, however often costly or impossible to obtain by a single entity. In many areas, including the medical domain, approaches relying on data sharing have…

机器学习 · 计算机科学 2024-08-02 Francesco Di Salvo , David Tafler , Sebastian Doerrich , Christian Ledig

Publishing datasets plays an essential role in open data research and promoting transparency of government agencies. However, such data publication might reveal users' private information. One of the most sensitive sources of data is…

机器学习 · 计算机科学 2019-11-06 Sina Shaham , Ming Ding , Bo Liu , Shuping Dang , Zihuai Lin , Jun Li

Trajectories are nowadays valuable information for a wide range of applications. However they are also inherently sensitive, as they contain highly personal information about individuals. Facing this challenge, synthesizing mobility…

人工智能 · 计算机科学 2026-05-12 Florent Guépin , Cheick Tidiani Cisse , Denis Renaud , François Bidet , Arnaud Legendre

This paper presents a novel deep learning framework for human trajectory prediction and detecting social group membership in crowds. We introduce a generative adversarial pipeline which preserves the spatio-temporal structure of the…

计算机视觉与模式识别 · 计算机科学 2018-12-20 Tharindu Fernando , Simon Denman , Sridha Sridharan , Clinton Fookes

Synthetic data has garnered attention as a Privacy Enhancing Technology (PET) in sectors such as healthcare and finance. When using synthetic data in practical applications, it is important to provide protection guarantees. In the…

For Multivariate Time Series Forecasting (MTSF), recent deep learning applications show that univariate models frequently outperform multivariate ones. To address the difficiency in multivariate models, we introduce a method to Construct…

机器学习 · 统计学 2026-02-06 Jiecheng Lu , Xu Han , Yan Sun , Shihao Yang

Naturalistic driving trajectories are crucial for the performance of autonomous driving algorithms. However, most of the data is collected in safe scenarios leading to the duplication of trajectories which are easy to be handled by…

机器学习 · 计算机科学 2019-10-04 Wenhao Ding , Mengdi Xu , Ding Zhao

Generative Adversarial Networks (GANs) are among the most popular approaches to generate synthetic data, especially images, for data sharing purposes. Given the vital importance of preserving the privacy of the individual data points in the…

机器学习 · 计算机科学 2021-11-29 Georgi Ganev

The advent of location-based services has led to the widespread adoption of indoor localization systems, which enable location tracking of individuals within enclosed spaces such as buildings. While these systems provide numerous benefits…

密码学与安全 · 计算机科学 2025-04-15 Vahideh Moghtadaiee , Mina Alishahi , Milad Rabiei

Adversarial training has become one of the most effective methods for improving robustness of neural networks. However, it often suffers from poor generalization on both clean and perturbed data. In this paper, we propose a new algorithm,…

机器学习 · 计算机科学 2020-02-19 Minhao Cheng , Qi Lei , Pin-Yu Chen , Inderjit Dhillon , Cho-Jui Hsieh

Location trajectories provide valuable insights for applications from urban planning to pandemic control. However, mobility data can also reveal sensitive information about individuals, such as political opinions, religious beliefs, or…

密码学与安全 · 计算机科学 2025-02-18 Jesse Merhi , Erik Buchholz , Salil S. Kanhere

Sharing sensitive data is vital in enabling many modern data analysis and machine learning tasks. However, current methods for data release are insufficiently accurate or granular to provide meaningful utility, and they carry a high risk of…

数据库 · 计算机科学 2021-08-25 Teddy Cunningham , Graham Cormode , Hakan Ferhatosmanoglu

In this paper, we propose a novel trajectory learning method that exploits motion trajectories on topological map using recurrent neural network for temporally consistent geolocalization of object. Inspired by human's ability to both be…

计算机视觉与模式识别 · 计算机科学 2020-10-14 Bing Zha , Alper Yilmaz