UbiComp 2003: Ubiquitous Computing

Location and Space.- Building World Models by Ray-Tracing within Ceiling-Mounted Positioning Systems.- On a Location Model for Fine-Grained Geocast.- RightSPOT: A Novel Sense of Location for a Smart Personal Object.- User-Friendly Surveying Techniques for Location-Aware Systems.- Modeling and Inference.- Sto(ry)chastics: A Bayesian Network Architecture for User Modeling and Computational Storytelling for Interactive Spaces.- Inferring High-Level Behavior from Low-Level Sensors.- Activity Zones for Context-Aware Computing.- Context Awareness.- Context-Aware User Authentication - Supporting Proximity-Based Login in Pervasive Computing.- Secure Spontaneous Device Association.- AwareCon: Situation Aware Context Communication.- liquid: Context-Aware Distributed Queries.- Is Context-Aware Computing Taking Control away from the User? Three Levels of Interactivity Examined.- New Devices and Technologies.- Tools for Studying Behavior and Technology in Natural Settings.- Very Low-Cost Sensing and Communication Using Bidirectional LEDs.- SPECs: Another Approach to Human Context and Activity Sensing Research, Using Tiny Peer-to-Peer Wireless Computers.- A 2-Way Laser-Assisted Selection Scheme for Handhelds in a Physical Environment.- Domestic Environments and Healthcare.- Finding a Place for UbiComp in the Home.- New Perspectives on Ubiquitous Computing from Ethnographic Study of Elders with Cognitive Decline.- Practical Considerations of Context for Context Based Systems: An Example from an Ethnographic Case Study of a Man Diagnosed with Early Onset Alzheimer's Disease.- "Playing with the Bits" User-Configuration of Ubiquitous Domestic Environments.- Social Aspect and Privacy.- IntelliBadgeTM: Towards Providing Location-Aware Value-Added Services at Academic Conferences.- UbiTable: Impromptu Face-to-Face Collaboration on Horizontal Interactive Surfaces.- Social Network Computing.- The Design of a Context-Aware Home Media Space for Balancing Privacy and Awareness.- New