We work in the intersection of mobile and pervasive computing, applied machine learning, and human-computer interaction. We aim at building innovative and experimental human-centered software systems with multi-dimensional considerations across systems, applications, and users. More specifically, we design and develop mobile, IoT, and machine learning systems to enable always-available and highly-enriched awareness on human behavior, emotion, and surrounding contexts. Also, we are interested in building life-immersive sensing applications in various application domains such as daily healthcare, childcare, education, and retails in collaboration with domain experts.