Smartphone app usage analysis: datasets, methods, and applications

T Li, T **a, H Wang, Z Tu, S Tarkoma… - … Surveys & Tutorials, 2022 - ieeexplore.ieee.org
As smartphones have become indispensable personal devices, the number of smartphone
users has increased dramatically over the last decade. These personal devices, which are …

Urban anomaly analytics: Description, detection, and prediction

M Zhang, T Li, Y Yu, Y Li, P Hui… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Urban anomalies may result in loss of life or property if not handled properly. Automatically
alerting anomalies in their early stage or even predicting anomalies before happening is of …

To what extent we repeat ourselves? Discovering daily activity patterns across mobile app usage

T Li, Y Li, MA Hoque, T **a… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
With the prevalence of smartphones, people have left abundant behavior records in
cyberspace. Discovering and understanding individuals' cyber activities can provide useful …

Understanding the long-term evolution of mobile app usage

T Li, Y Fan, Y Li, S Tarkoma… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
The prevalence of smartphones has promoted the popularity of mobile apps in recent years.
Although significant effort has been made to understand mobile app usage, existing studies …

DeFFusion: CNN-based continuous authentication using deep feature fusion

Y Li, P Tao, S Deng, G Zhou - ACM Transactions on Sensor Networks …, 2021 - dl.acm.org
Smartphones have become crucial and important in our daily life, but the security and
privacy issues have been major concerns of smartphone users. In this article, we present …

Large-scale urban cellular traffic generation via knowledge-enhanced gans with multi-periodic patterns

S Hui, H Wang, T Li, X Yang, X Wang, J Feng… - Proceedings of the 29th …, 2023 - dl.acm.org
With the rapid development of the cellular network, network planning is increasingly
important. Generating large-scale urban cellular traffic contributes to network planning via …

Generative AI Empowered Network Digital Twins: Architecture, Technologies, and Applications

T Li, Q Long, H Chai, S Zhang, F Jiang, H Liu… - ACM Computing …, 2025 - dl.acm.org
The rapid advancement of mobile networks highlights the limitations of traditional network
planning and optimization methods, particularly in modeling, evaluation, and application …

Early detection of cardiorespiratory complications and training monitoring using wearable ECG sensors and CNN

HY Lu, XM Feng, J Zhang - BMC Medical Informatics and Decision Making, 2024 - Springer
This research study demonstrates an efficient scheme for early detection of cardiorespiratory
complications in pandemics by Utilizing Wearable Electrocardiogram (ECG) sensors for …

The impact of COVID-19 on smartphone usage

T Li, M Zhang, Y Li, E Lagerspetz… - IEEE Internet of …, 2021 - ieeexplore.ieee.org
The outbreak of Covid-19 changed the world as well as human behavior. In this article, we
study the impact of Covid-19 on smartphone usage. We gather smartphone usage records …

Characterizing Internet card user portraits for efficient churn prediction model design

F Wu, F Lyu, J Ren, P Yang, K Qian… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Cellular Internet card (IC) as a new business model emerges, which penetrates rapidly and
holds the potential to foster a great business market. However, with the explosive growth of …