UbiComp 2004: Ubiquitous Computing

Welcome to the proceedings of UbiComp 2004. In recent years the ubiquitous computing community has witnessed a sign- cant growth in the number of conferences in the area, each with its own disti- tive characteristics. For UbiComp these characteristics have always included a high-quality technical program and associated demonstrations and posters that cover the full range of research being carried out under the umbrella of ubiq- tous computing. Ours is a broaddiscipline andUbiComp aims to be aninclusive forum that welcomes submissions from researchers with many di?erent ba- grounds. This year we received 145 submissions. Of these we accepted 26, an acceptance rate of just under 18%. Of course acceptance rate is simply a m- sure of selectivity rather than quality and we were particularly pleased this year to note that we had a large number of high-quality submissions from which to assemble the program for 2004. The broad nature of ubiquitous computing research makes reviewing Ubi- Comp submissions a particular challenge. This year we adopted a new process for review and selection that has, we hope, resulted in all authors obtaining - tremely detailed feedback on their submission whether or not it was accepted for publication. We believe the process enabled us to assemble the best pos- ble program for delegates at the conference. If you submitted a paper, we hope that you bene?ted from the feedback that your peers have provided, and if you attended UbiComp 2004 we hope that you enjoyed the technical program.

Includes supplementary material: sn.pub/extras

Inhalt
The CareNet Display: Lessons Learned from an In Home Evaluation of an Ambient Display.- Personalized Peripheral Information Awareness Through Information Art.- Reminding About Tagged Objects Using Passive RFIDs.- Evaluating the Effects of Displaying Uncertainty in Context-Aware Applications.- The Error of Our Ways: The Experience of Self-Reported Position in a Location-Based Game.- Particle Filters for Location Estimation in Ubiquitous Computing: A Case Study.- Some Assembly Required: Supporting End-User Sensor Installation in Domestic Ubiquitous Computing Environments.- Rapid Authoring of Mediascapes.- CAMP: A Magnetic Poetry Interface for End-User Programming of Capture Applications for the Home.- Designing Capture Applications to Support the Education of Children with Autism.- 'This All Together, Hon?' Ubicomp in Non-office Work Environments.- Security and Trust in Mobile Interactions: A Study of Users' Perceptions and Reasoning.- WatchMe: Communication and Awareness Between Members of a Closely-Knit Group.- Everyday Encounters with Context-Aware Computing in a Campus Environment.- Cooperative Artefacts: Assessing Real World Situations with Embedded Technology.- I Sense a Disturbance in the Force: Unobtrusive Detection of Interactions with RFID-tagged Objects.- The NearMe Wireless Proximity Server.- The ContextCam: Automated Point of Capture Video Annotation.- MouseField: A Simple and Versatile Input Device for Ubiquitous Computing.- The Iterative Design Process of a Location-Aware Device for Group Use.- DOLPHIN: A Practical Approach for Implementing a Fully Distributed Indoor Ultrasonic Positioning System.- The Carrot Approach: Encouraging Use of Location Systems.- ActiveBelt: Belt-Type Wearable Tactile Display for Directional Navigation.- An Audio-BasedPersonal Memory Aid.- Infrastructures and Their Discontents: Implications for Ubicomp.- Opportunity Knocks: A System to Provide Cognitive Assistance with Transportation Services.