The active badge location system
ACM Transactions on Information Systems (TOIS)
Cyberguide: prototyping context-aware mobile applications
Conference Companion on Human Factors in Computing Systems
A look at human interaction with pervasive computers
IBM Systems Journal
An end-to-end approach to host mobility
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Introduction: the first international workshop on self-adaptive software
IWSAS' 2000 Proceedings of the first international workshop on Self-adaptive software
Handbook of Information Security Management
Handbook of Information Security Management
Guest Editor's Introduction: Creating Robust Software through Self-Adaptation
IEEE Intelligent Systems
Location-Aware Information Delivery with ComMotion
HUC '00 Proceedings of the 2nd international symposium on Handheld and Ubiquitous Computing
A Context-Sensitive Nomadic Exhibition Guide
HUC '00 Proceedings of the 2nd international symposium on Handheld and Ubiquitous Computing
Advanced Interaction in Context
HUC '99 Proceedings of the 1st international symposium on Handheld and Ubiquitous Computing
Scalable and Flexible Location-Based Services for Ubiquitous Information Access
HUC '99 Proceedings of the 1st international symposium on Handheld and Ubiquitous Computing
ACTIVE MAP: A Visualization Tool for Location Awareness to Support Informal Interactions
HUC '99 Proceedings of the 1st international symposium on Handheld and Ubiquitous Computing
CybreMinder: A Context-Aware System for Supporting Reminders
HUC '00 Proceedings of the 2nd international symposium on Handheld and Ubiquitous Computing
MM&Sec '01 Proceedings of the 2001 workshop on Multimedia and security: new challenges
Consistent Modelling of Users, Devices and Sensors in a Ubiquitous Computing Environment
User Modeling and User-Adapted Interaction
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Traditionally, location systems have been built bottom-up beginning with low-level sensors and adding layers up to high-level context. Consequently, they have focused on a single location-detection technology. With sharing of user location in mind, we created Personal Location Agent for Communicating Entities (PLACE), an infrastructure that incorporates multiple location technologies for the purpose of establishing user location with better coverage, at varying granularities, and with better accuracy. PLACE supports sensor fusion and access control using a common versatile language to describe user locations in a common universe. Its design provides an alternative approach towards location systems and insight into the general problem of sharing user location information.