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Explicit channel state information at the transmitter side is helpful to improve downlink precoding performance for multi-user MIMO systems. In order to reduce feedback signalling overhead, compression of Channel State Information (CSI) is…

Signal Processing · Electrical Eng. & Systems 2021-10-13 Benedikt Groß , Rana Ahmed Salem , Thorsten Wild , Gerhard Wunder

Enabling socially acceptable behavior for situated agents is a major goal of recent robotics research. Robots should not only operate safely around humans, but also abide by complex social norms. A key challenge for developing…

Robotics · Computer Science 2022-05-03 Sören Pirk , Edward Lee , Xuesu Xiao , Leila Takayama , Anthony Francis , Alexander Toshev

WiFi-based smart human sensing technology enabled by Channel State Information (CSI) has received great attention in recent years. However, CSI-based sensing systems suffer from performance degradation when deployed in different…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Dazhuo Wang , Jianfei Yang , Wei Cui , Lihua Xie , Sumei Sun

This study investigates the task of dwell time prediction and proposes a Transformer framework based on interaction behavior modeling. The method first represents user interaction sequences on the interface by integrating dwell duration,…

Human-Computer Interaction · Computer Science 2025-12-22 Rui Liu , Runsheng Zhang , Shixiao Wang

Wireless communication networks rely heavily on channel state information (CSI) to make informed decision for signal processing and network operations. However, the traditional CSI acquisition methods is facing many difficulties:…

Information Theory · Computer Science 2015-08-25 Jingchu Liu , Ruichen Deng , Sheng Zhou , Zhisheng Niu

Existing network simulations often rely on simplistic models that send packets at random intervals, failing to capture the critical role of application-level behaviour. This paper presents a statistical approach that extracts and models…

Networking and Internet Architecture · Computer Science 2025-02-04 Murugaraj Odiathevar , Kim Chung Yup

Despite an extensive literature has been devoted to mine and model mobility features, forecasting where, when and whom people will encounter/colocate still deserve further research efforts. Forecasting people's encounter and colocation…

Social and Information Networks · Computer Science 2016-10-07 Karim Karamat Jahromi , Matteo Zignani , Sabrina Gaito , Gian Paolo Rossi

The recent availability of digital traces generated by phone calls and online logins has significantly increased the scientific understanding of human mobility. Until now, however, limited data resolution and coverage have hindered a…

Physics and Society · Physics 2017-03-20 Laura Alessandretti , Piotr Sapiezynski , Sune Lehmann , Andrea Baronchelli

This paper introduces a new mathematical framework, which is used to derive joint uplink/downlink achievable rate regions for multi-user spatial multiplexing between one base station and multiple terminals. The framework consists of two…

Information Theory · Computer Science 2010-02-03 Patrick Marsch , Peter Rost , Gerhard Fettweis

We consider a service robot that offers chocolate treats to people passing in its proximity: it has the capability of predicting in advance a person's intention to interact, and to actuate an "offering" gesture, subtly extending the tray of…

Robotics · Computer Science 2024-10-07 Simone Arreghini , Gabriele Abbate , Alessandro Giusti , Antonio Paolillo

The exponential growth in smartphone adoption is contributing to the availability of vast amounts of human behavioral data. This data enables the development of increasingly accurate data-driven user models that facilitate the delivery of…

Human-Computer Interaction · Computer Science 2018-01-30 Souneil Park , Aleksandar Matic , Kamini Garg , Nuria Oliver

Passive indoor localization, integral to smart buildings, emergency response, and indoor navigation, has traditionally been limited by a focus on single-target localization and reliance on multi-packet CSI. We introduce a novel Multi-target…

Signal Processing · Electrical Eng. & Systems 2024-03-05 Zhiyuan He , Ke Deng , Jiangchao Gong , Yi Zhou , Desheng Wang

User embeddings play a crucial role in user engagement forecasting and personalized services. Recent advances in sequence modeling have sparked interest in learning user embeddings from behavioral data. Yet behavior-based user embedding…

Social and Information Networks · Computer Science 2024-03-21 Zhihan Zhou , Qixiang Fang , Leonardo Neves , Francesco Barbieri , Yozen Liu , Han Liu , Maarten W. Bos , Ron Dotsch

The next generation of wireless communications seeks to deeply integrate artificial intelligence (AI) with user-centric communication networks, with the goal of developing AI-native networks that more accurately address user requirements.…

Networking and Internet Architecture · Computer Science 2025-04-17 Kuiyuan Ding , Caili Guo , Yang Yang , Wuxia Hu , Yonina C. Eldar

User connectivity patterns in network applications are known to be heterogeneous, and to follow periodic (daily and weekly) patterns. In many cases, the regularity and the correlation of those patterns is problematic: for network…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-18 Matteo Dell'Amico , Maurizio Filippone , Pietro Michiardi , Yves Roudier

Social connectivity is the key process that characterizes the structural properties of social networks and in turn processes such as navigation, influence or information diffusion. Since time, attention and cognition are inelastic…

Physics and Society · Physics 2013-04-09 Giovanna Miritello , Rubén Lara , Manuel Cebrián , Esteban Moro

The anticipation of human behavior is a crucial capability for robots to interact with humans safely and efficiently. We employ a smart edge sensor network to provide global observations, future predictions, and goal information to…

Robotics · Computer Science 2025-09-16 Simon Bultmann , Raphael Memmesheimer , Jan Nogga , Julian Hau , Sven Behnke

In multiple-input multiple-output (MIMO) systems, the high-resolution channel information (CSI) is required at the base station (BS) to ensure optimal performance, especially in the case of multi-user MIMO (MU-MIMO) systems. In the absence…

Information Theory · Computer Science 2022-02-04 Pranav Madadi , Jeongho Jeon , Joonyoung Cho , Caleb Lo , Juho Lee , Jianzhong Zhang

This study presents an initial framework for distinguishing group and single pedestrians based on real-world trajectory data, with the aim of analyzing their differences in space utilization and emergent behavioral patterns. By segmenting…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Amartaivan Sanjjamts , Morita Hiroshi

With the growth of using cell phones and the increase in diversity of smart mobile devices, a massive volume of data is generated continuously in the process of using these devices. Among these data, Call Detail Records, CDR, is highly…

Machine Learning · Computer Science 2019-12-24 Mohammad Saleh Mahdizadeh , Behnam Bahrak