CCF Transactions on Pervasive Computing and Interaction (CCF TPCI) is dedicated to publishing rigorously peer-reviewed, high-quality scientific articles covering all aspects of human-computer interaction and pervasive/ubiquitous computing. Computing technology is becoming increasingly pervasive, and enables more advanced interactions among humans, machines, and the environment. To foster the developments in the area, CCF TPCI provides a publication and communication platform and welcomes contributions from researchers, professionals, and industrial practitioners. This journal is published on behalf of the China Computer Federation (CCF), and it is powered by the CCF technical committees on Pervasive Computing and Human Computer Interaction. An official CCF publication, powered by CCF technical committees on Pervasive Computing and Human Computer Interaction Covers all aspects of human-computer interaction and pervasive/ubiquitous computing as well as interdisciplinary topics Offers a rapid reviewing process and publishing workflow