Human activity recognition is a key to a lot of applications such as healthcare and smart
home. In this study, we provide a comprehensive survey on recent advances and challenges …

Due to the ever-growing powers in sensing, computing, communicating and storing, mobile
devices (eg, smartphone, smartwatch, smart glasses) become ubiquitous and an …

With the flourish of the smart devices and their applications, controlling devices using
gestures has attracted increasing attention for ubiquitous sensing and interaction. Recent …

Though playing an essential role in smart home systems, smart speakers are vulnerable to
voice spoofing attacks. Passive liveness detection, which utilizes only the collected audio …

Respiratory diseases have been a significant public health challenge. Efficient disease
evaluation and monitoring call for daily spirometry tests, as an effective way of pulmonary …

This paper explores the possibility of tracking finger drawings in the air leveraging WiFi
signals from commodity devices. Prior solutions typically require user to hold a wireless …

With the rising of AR/VR technology and miniaturization of mobile devices, gesture
recognition is becoming increasingly popular in the research area of human-computer …

Human activity recognition (HAR) plays a critical role in a wide range of real-world
applications, and it is traditionally achieved via wearable sensing. Recently, to avoid the …

Recent years have seen interest in device tracking and localization using acoustic signals.
State-of-the-art acoustic motion tracking systems however do not achieve millimeter …

Indoor localization is crucial to enable context-aware applications, but existing solutions
mostly require a user to carry a device, so as to actively sense location-discriminating …