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Related papers: Trajectory-User Linking Is Easier Than You Think

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Trajectory-user linking (TUL) aims to match anonymous trajectories to the most likely users who generated them, offering benefits for a wide range of real-world spatio-temporal applications. However, existing TUL methods are limited by high…

Machine Learning · Computer Science 2025-03-20 Hao Zhang , Wei Chen , Xingyu Zhao , Jianpeng Qi , Guiyuan Jiang , Yanwei Yu

Trajectory-User Linking (TUL) is crucial for human mobility modeling by linking diferent trajectories to users with the exploration of complex mobility patterns. Existing works mainly rely on the recurrent neural framework to encode the…

Machine Learning · Computer Science 2023-12-08 Wei Chen , Chao Huang , Yanwei Yu , Yongguo Jiang , Junyu Dong

Trajectory User Linking (TUL), which links anonymous trajectories with users who generate them, plays a crucial role in modeling human mobility. Despite significant advancements in this field, existing studies primarily neglect the…

Machine Learning · Computer Science 2025-02-12 Fengjie Chang , Xinning Zhu , Zheng Hu , Yang Qin

Password authentication is the most commonly used technique to authenticate the user validity. However, due to its simplicity, it is vulnerable to pseudo attacks. It can be enhanced using various biometric techniques such as thumb…

Cryptography and Security · Computer Science 2011-08-04 Hazarath Munaga , J. V. R. Murthy , N. B. Venkateswarlu

Large Language Models (LLMs) have been widely applied across multiple domains for their broad knowledge and strong reasoning capabilities. However, applying them to recommendation systems is challenging since it is hard for LLMs to extract…

Information Retrieval · Computer Science 2026-02-05 Yinan Zhang , Zhixi Chen , Jiazheng Jing , Zhiqi Shen

Sources of complementary information are connected when we link user accounts belonging to the same user across different platforms or devices. The expanded information promotes the development of a wide range of applications, such as…

Social and Information Networks · Computer Science 2022-01-11 Wei Chen , Weiqing Wang , Hongzhi Yin , Lei Zhao , Xiaofang Zhou

Crime has been previously explained by social characteristics of the residential population and, as stipulated by crime pattern theory, might also be linked to human movements of non-residential visitors. Yet a full empirical validation of…

Computers and Society · Computer Science 2020-04-20 Cristina Kadar , Stefan Feuerriegel , Anastasios Noulas , Cecilia Mascolo

The problem of unicity and reidentifiability of records in large-scale databases has been studied in different contexts and approaches, with focus on preserving privacy or matching records from different data sources. With an increasing…

Social and Information Networks · Computer Science 2018-09-27 Dániel Kondor , Behrooz Hashemian , Yves-Alexandre de Montjoye , Carlo Ratti

A large amount of data resulting from trajectories of moving objects activities are collected thanks to localization based services and some associated automated processes. Trajectories data can be used either for transactional and analysis…

Databases · Computer Science 2011-02-23 Wided Oueslati , Jalel Akaichi

In an Online Social Network (OSN), users can create a unique public persona by crafting a user identity that may encompass profile details, content, and network-related information. As a result, a relevant task of interest is related to the…

Social and Information Networks · Computer Science 2024-11-27 Caterina Senette , Marco Siino , Maurizio Tesconi

User trajectory data is becoming increasingly accessible due to the prevalence of GPS-equipped devices such as smartphones. Many existing studies focus on querying trajectories that are similar to each other in their entirety. We observe…

Databases · Computer Science 2021-09-21 Yanchuan Chang , Jianzhong Qi , Egemen Tanin , Xingjun Ma , Hanan Samet

Advancements in Intelligent Traffic Systems (ITS) have made huge amounts of traffic data available through automatic data collection. A big part of this data is stored as trajectories of moving vehicles and road users. Automatic analysis of…

Machine Learning · Computer Science 2021-12-06 Mohsen Rezaie , Nicolas Saunier

Open human mobility data is considered an essential basis for the profound research and analysis required for the transition to sustainable mobility and sustainable urban planning. Cycling data has especially been the focus of data…

Cryptography and Security · Computer Science 2025-02-13 Benedikt Ströbl , Alexandra Kapp

Trajectory data combines the complexities of time series, spatial data, and (sometimes irrational) movement behavior. As data availability and computing power have increased, so has the popularity of deep learning from trajectory data. This…

Machine Learning · Computer Science 2025-04-02 Anita Graser , Anahid Jalali , Jasmin Lampert , Axel Weißenfeld , Krzysztof Janowicz

Traceability greatly supports knowledge-intensive tasks, e.g., coverage check and impact analysis. Despite its clear benefits, the \emph{practical} implementation of traceability poses significant challenges, leading to a reduced focus on…

With the rise of social media and Location-Based Social Networks (LBSN), check-in data across platforms has become crucial for User Identity Linkage (UIL). These data not only reveal users' spatio-temporal information but also provide…

Social and Information Networks · Computer Science 2025-04-04 Ziang Yan , Xingyu Zhao , Hanqing Ma , Wei Chen , Jianpeng Qi , Yanwei Yu , Junyu Dong

We present the results of training a large trajectory model using real-world user check-in data. Our approach follows a pre-train and fine-tune paradigm, where a base model is pre-trained via masked trajectory modeling and then adapted…

Machine Learning · Computer Science 2023-12-04 Alameen Najjar

Tool-calling agents are increasingly deployed in real-world customer-facing workflows. Yet most studies on tool-calling agents focus on idealized settings with general, fixed, and well-specified tasks. In real-world applications, user…

Computation and Language · Computer Science 2026-04-23 Ziyi Wang , Yuxuan Lu , Yimeng Zhang , Pei Chen , Ziwei Dong , Jing Huang , Jiri Gesi , Xianfeng Tang , Chen Luo , Qun Liu , Yisi Sang , Hanqing Lu , Manling Li , Jin Lai , Dakuo Wang

Trajectory computing is a pivotal domain encompassing trajectory data management and mining, garnering widespread attention due to its crucial role in various practical applications such as location services, urban traffic, and public…

Tor is a widely used anonymity network that conceals user identities by routing traffic through encrypted relays, yet it remains vulnerable to traffic correlation attacks that deanonymize users by matching patterns in ingress and egress…

Cryptography and Security · Computer Science 2025-12-02 Binghui Wu , Dinil Mon Divakaran , Levente Csikor , Mohan Gurusamy
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