WristSonic: Enabling Fine-grained Hand-Face Interactions on Smartwatches Using Active Acoustic Sensing. - Saif Mahmud; Kian Mahmoodi; Chi-Jung Lee; François Guimbretière; Cheng Zhang 022 (CoRR, 2024)

EchoForce: Continuous Grip Force Estimation from Skin Deformation Using Active Acoustic Sensing on a Wristband. - Kian Mahmoodi; Yudong Xie; Tan Gemicioglu; Chi-Jung Lee; Jiwan Kim; Cheng Zhang (CoRR, 2025)