Context-Aware Information Provision to the Mobile Phone Standby Screen

Our context-aware information delivery system enables information to be provided directly to the standby screen of a user’s mobile phone. The information appears on the standby screen only while the user context matches the information context due to a function that continuously monitors the behavioral response to user context, time, location, and reference history. We conducted a four-month trial of local information provision with over 800 mobile phone users participating. Approximately 30% of them.. "positively accepted" this information provision and most users actually utilized the received information. This shows that our approach is effective for mobile ad delivery.

1. Introduction

There are almost 90 million mobile phones in Japan. They handle not only telephone calls but also packet data communication for e-mail and http-based services. WWW services provide entertainment, information, database transactions [1]. E-mail-based messaging services are also provided.