LOCATION-AWARE PERSONAL LIFE CONTENT MANAGER AND ITS PRIVACY FUNCTIONS

摘要

In this paper, we will introduce a location-aware personal life content manager (laPLCm) and the functions of location privacy for data representation, query, transmission and positioning methods on laPLCm. laPLCm allows users to be reminded and access their own personal life content by spatial keys of the content and the users in their real lives. Examples of personal life content representing past, present and future events are diary, schedule, to-do list, GPS logs, photos and videos which are recorded, created and stored with our daily mobile devices. Personal life content cannot be fully treated on current commercial LBS. Our proposed laPLCm gives a new platform for users to easily generate their own LBS for themselves, their families, friends and colleagues using their personal life content in the form of blog as well as original privacy functions. The functions of setting levels of information sharing to each of persons and groups flexibly realize part of the privacy for data in our system. Personal mapping services introduced in the paper prevent from recoding positions of users in the servers of web mapping providers. Our proposed self-positioning methods are also significant to keep the location privacy for positioning methods. Furthermore, we demonstrate our prototype system based on the architecture of location privacy, and discuss usability, feasibility and sustainability for the system with comparison of present commercial LBS.