He received his Ph.D in computer science at KAIST, Korea. He has broad interests in building creative and experimental software systems and futuristic applications, which requires deep understanding on computer systems, applications, and users. More specifically, he has been building mobile and sensor systems to enable always-available and highly-enriched context awareness and addressed core technical issues such as energy efficiency, resource coordination, and recognition accuracy. On top of his platform, he also built a number of useful life-immersive sensing applications in diverse application domains, for example, childcare, healthcare, advertisements, gaming. He published his work in premier conferences and journals such as ACM MobiSys, ACM SenSys, ACM CSCW, IEEE PerCom, Pervasive, Communications of ACM, and IEEE TMC. For more details, visit http://youngkilee.blogspot.com.