Longbiao Chen

Learn More
The research of collective behavior has attracted a lot of attention in recent years, which can empower various applications , such as recommendation systems and intelligent transportation systems. However, in traditional social science, it is practically difficult to collect large-scale user behavior data. Fortunately, with the ubiquity of smartphones and(More)
Bike sharing systems have been deployed in many cities to promote green transportation and a healthy lifestyle. One of the key factors for maximizing the utility of such systems is placing bike stations at locations that can best meet users' trip demand. Traditionally, urban planners rely on dedicated surveys to understand the local bike trip demand, which(More)
—Nowadays, natural and intuitive interactions between physical space and cyberspace have become increasingly important in our daily life. In this paper, we propose touch-driven interaction, which translates touch action into information flow in cyberspace, and result in media activity in physical space. Using NFC technology, user can simply touch smartphone(More)
Traditionally, the port container throughput, a crucial measurement of regional economic development, was manually collected by port authorities. This requires a large amount of human effort and often delays publication of this important figure. In this paper, by leveraging ubiquitous positioning techniques and open data, we propose a two-phase approach to(More)
Bike sharing is booming globally as a green transportation mode, but the occurrence of over-demand stations that have no bikes or docks available greatly affects user experiences. Directly predicting individual over-demand stations to carry out preventive measures is difficult, since the bike usage pattern of a station is highly dynamic and context(More)
—With the advent of smart home technologies, convenient and intuitive cyber-physical interaction methods are in great need. We demonstrate a touch-driven interaction system with home appliances via an NFC-enabled smartphone. By touching the phone to NFC tagged devices, we can establish connection and exchange information, control devices from phone, and(More)