6 papers
Jointly Predicting Courses and Grades Using a Transformer-Based Model
Paul Savala
Existing predictive models in learning analytics often treat student academic history as a simple sequence, overlooking the concurrent nature of courses taken within a semester. Th…
WatchHand: Enabling Continuous Hand Pose Tracking On Off-the-Shelf Smartwatches
Jiwan Kim, Chi-Jung Lee, Hohurn Jung +4
Tracking hand poses on wrist-wearables enables rich, expressive interactions, yet remains unavailable on commercial smartwatches, as prior implementations rely on external sensors…
Grab-n-Go: On-the-Go Microgesture Recognition with Objects in Hand
Chi-Jung Lee, Jiaxin Li, Tianhong Catherine Yu +4
As computing devices become increasingly integrated into daily life, there is a growing need for intuitive, always-available interaction methods, even when users' hands are occupie…
EchoForce: Continuous Grip Force Estimation from Skin Deformation Using Active Acoustic Sensing on a Wristband
Kian Mahmoodi, Yudong Xie, Tan Gemicioglu +3
Grip force is commonly used as an overall health indicator in older adults and is valuable for tracking progress in physical training and rehabilitation. Existing methods for weara…
WristSonic: Enabling Fine-grained Hand-Face Interactions on Smartwatches Using Active Acoustic Sensing
Saif Mahmud, Kian Mahmoodi, Chi-Jung Lee +2
Hand-face interactions play a key role in many everyday tasks, providing insights into user habits, behaviors, intentions, and expressions. However, existing wearable sensing syste…
Ring-a-Pose: A Ring for Continuous Hand Pose Tracking
Tianhong Catherine Yu, Guilin Hu, Ruidong Zhang +9
We present Ring-a-Pose, a single untethered ring that tracks continuous 3D hand poses. Located in the center of the hand, the ring emits an inaudible acoustic signal that each hand…