The smart phones are getting ubiquitous in these days. Meanwhile, a lot of smart phones based applications have been developed for various services. Like other context-aware applications, it becomes also an important issue to design better user interfaces suitable for special features and different demands. That is, a smart phone user interface may not be fixed, and can be automatically adjusted according to context information such as user’s habit, preference, location, etc. It is thus necessary to provide a changeable interface layout associated with user’s possible needs and current situations so that the user can use the smart phone more efficiently and conveniently. So, this research is to first record the use history of various applications used by a user, then extract relations between an application and its use time, location, movement state, action sequence, etc., and finally model the user characters using a smart phone. In this paper, application use log information acquisition and transformation are discussed, the application use features are analyzed, the experimental results are presented, and evaluations are given, respectively.

109 情報科学部・情報科学研究科 ＞ 学位論文 ＞ 修士論文