Ruidong Zhang is a PhD student at Cornell University. He is a member of the Smart Computer Interfaces for Future Interactions (SciFi) Lab ( directed by Prof. Cheng Zhang. His research interest lies in HCI and Ubiquitous computing, especially building novel wearable devices that promote interactive experiences and deepen our understanding of human behaviors. Before arriving at Cornell, he received his Bachelor's degree in Automation at Tsinghua University.