Computers support more and more daily activities for common users. However, user attention is taking a heavy toll when scaling the use of computers for tasks that span many locations, large periods of time, and that are constantly interrupted and resumed. To reduce such toll, computer systems must improve their awareness of user tasks, across multiple devices, and over time spans of weeks or ev...

With the rapid evolution of mobile devices, the usage patterns of applications on these devices also change over time. The topic of user behaviors on mobile devices such as smart phones has attracted much attention in recent years. In this work, we have developed an experimental platform that can log and analyze all user operations on a smart phone that is used freely over a long period of time...

From applied linguistic point of view, the fundamental question facing the language teachers, methodologists and course designers is which procedure is more effective in FL/SL: learning to use or using to learn? Definitely, in order to be a competent language user, knowledge of language system is necessary, but it is not sufficient to be a successful language user. That is why there was a gradu...