278 citations · 417 across the 10 of their papers we have counts for
10 papers
Location-based Activity Behavior Deviation Detection for Nursing Home using IoT Devices
Billy Pik Lik Lau, Zann Koh, Yuren Zhou +3
With the advancement of the Internet of Things(IoT) and pervasive computing applications, it provides a better opportunity to understand the behavior of the aging population. Howev…
Clustering and Analysis of GPS Trajectory Data using Distance-based Features
Zann Koh, Yuren Zhou, Billy Pik Lik Lau +3
The proliferation of smartphones has accelerated mobility studies by largely increasing the type and volume of mobility data available. One such source of mobility data is from GPS…
WiFi Fingerprint Clustering for Urban Mobility Analysis
Sumudu HasalaMarakkalage, Billy Pik Lik Lau, Yuren Zhou +4
In this paper, we present an unsupervised learning approach to identify the user points of interest (POI) by exploiting WiFi measurements from smartphone application data. Due to t…
Multiple-Perspective Clustering of Passive Wi-Fi Sensing Trajectory Data
Zann Koh, Yuren Zhou, Billy Pik Lik Lau +3
Information about the spatiotemporal flow of humans within an urban context has a wide plethora of applications. Currently, although there are many different approaches to collect…
Stochastic Recursive Momentum for Policy Gradient Methods
Huizhuo Yuan, Xiangru Lian, Ji Liu +1
In this paper, we propose a novel algorithm named STOchastic Recursive Momentum for Policy Gradient (STORM-PG), which operates a SARAH-type stochastic recursive variance-reduced po…
Understanding Crowd Behaviors in a Social Event by Passive WiFi Sensing and Data Mining
Yuren Zhou, Billy Pik Lik Lau, Zann Koh +2
Understanding crowd behaviors in a large social event is crucial for event management. Passive WiFi sensing, by collecting WiFi probe requests sent from mobile devices, provides a…
Benchmarking air-conditioning energy performance of residential rooms based on regression and clustering techniques
Yuren Zhou, Clement Lork, Wen-Tai Li +2
Air conditioning (AC) accounts for a critical portion of the global energy consumption. To improve its energy performance, it is important to fairly benchmark its energy performanc…
A Survey of Data Fusion in Smart City Applications
Billy Pik Lik Lau, Sumudu Hasala Marakkalage, Yuren Zhou +4
The advancement of various research sectors such as Internet of Things (IoT), Machine Learning, Data Mining, Big Data, and Communication Technology has shed some light in transform…
Understanding Urban Human Mobility through Crowdsensed Data
Yuren Zhou, Billy Pik Lik Lau, Chau Yuen +2
Understanding how people move in the urban area is important for solving urbanization issues, such as traffic management, urban planning, epidemic control, and communication networ…
Power-saving transportation mode identification for large-scale applications
Yuren Zhou, Jin Wang, Peng Shi +3
Transportation mode detection with personal devices has been investigated for over ten years due to its importance in monitoring ones' activities, understanding human mobility, and…