My major research interests focus on intelligent, adaptive, and user-friendly software systems and applications. My current projects cover the topics from measurement, engineering, and optimization of modern complex software systems, including Web systems, mobile systems, machine learning systems, etc. My recent work can be found on premier conferences such as WWW, ICSE, FSE, MobiCom, MobiSys, UbiComp, EuroSys, SIGMETRICS, and IMC, along with high-impact journals such as ACM TOIS/TOIT/TWEB and IEEE TSE/TMC/TSC.