Location- and Context-Awareness

1. Front Matter

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2. Location Sensing

   1. Particle Filters for Position Sensing with Asynchronous Ultrasonic Beacons

      • Henk L. Muller, Michael McCarthy, Cliff Randell

      Pages 1-13

   2. Cluster Tagging: Robust Fiducial Tracking for Smart Environments

      • Robert Harle, Andy Hopper

      Pages 14-29

   3. Automatic Mitigation of Sensor Variations for Signal Strength Based Location Systems

      • Mikkel Baun Kjærgaard

      Pages 30-47

3. Mapping

   1. KOTOHIRAGU NAVIGATOR: An Open Experiment of Location-Aware Service for Popular Mobile Phones

      • Hiroyuki Tarumi, Yuko Tsurumi, Kazuya Matsubara, Yusuke Hayashi, Yuki Mizukubo, Makoto Yoshida et al.

      Pages 48-63

   2. A Wearable Interface for Topological Mapping and Localization in Indoor Environments

      • Grant Schindler, Christian Metzger, Thad Starner

      Pages 64-73

   3. Taking Location Modelling to New Levels: A Map Modelling Toolkit for Intelligent Environments

      • Christoph Stahl, Jens Haupert

      Pages 74-85

4. Privacy and Access

   1. Harvesting of Location-Specific Information Through WiFi Networks

      • Jong Hee Kang, Gaetano Borriello

      Pages 86-102

   2. Re-identifying Anonymous Nodes

      • Stefan Schlott, Frank Kargl, Michael Weber

      Pages 103-115

   3. Anonymous User Tracking for Location-Based Community Services

      • Peter Ruppel, Georg Treu, Axel Küpper, Claudia Linnhoff-Popien

      Pages 116-133

5. Context Sensing

   1. Towards Personalized Mobile Interruptibility Estimation

      • Nicky Kern, Bernt Schiele

      Pages 134-150

   2. Unsupervised Discovery of Structure in Activity Data Using Multiple Eigenspaces

      • Tâm Huỳnh, Bernt Schiele

      Pages 151-167

   3. Toward Scalable Activity Recognition for Sensor Networks

      • Christopher R. Wren, Emmanuel Munguia Tapia

      Pages 168-185

6. Social Context

   1. Nomatic: Location By, For, and Of Crowds

      • Donald J. Patterson, Xianghua Ding, Nicholas Noack

      Pages 186-203

   2. An Unsupervised Learning Paradigm for Peer-to-Peer Labeling and Naming of Locations and Contexts

      • John A. Flanagan

      Pages 204-221

   3. Building Common Ground for Face to Face Interactions by Sharing Mobile Device Context

      • Vassilis Kostakos, Eamonn O’Neill, Anuroop Shahi

      Pages 222-238

7. Representation and Programming

   1. Evaluating Performance in Continuous Context Recognition Using Event-Driven Error Characterisation

      • Jamie A. Ward, Paul Lukowicz, Gerhard Tröster

      Pages 239-255

   2. Location-Based Context Retrieval and Filtering

      • Carsten Pils, Ioanna Roussaki, Maria Strimpakou

      Pages 256-273

   3. Scripting Your Home

      • Mirko Knoll, Torben Weis, Andreas Ulbrich, Alexander Brändle

      Pages 274-288

8. Back Matter

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nd These proceedings contain the papers presented at the 2 International Workshop on Location- and Context-Awareness in May of 2006. As computing moves increasingly into the everyday world, the importance of location and context knowledge grows. The range of contexts encountered while sitting at a desk working on a computer is very limited compared to the large variety of situations experienced away from the desktop. For computing to be relevant and useful in these situations, the computers must have knowledge of the user’s activity, resources, state of mind, and goals, i.e., the user’s context, of which location is an important indicator. This workshop was intended to present research aimed at sensing, inferring, and using location and context data in ways that help the user. Our call for papers resulted in 74 submissions, each of which was assigned to members of our Program Committee. After reviews and email discussion, we selected 18 papers for publication in these proceedings. Most of the accepted papers underwent a shepherding process by a reviewer or a member of the Program Co- ittee to ensure that the reviewers’ comments were accounted for in the published version. We feel our selective review process and shepherding phase have resulted in a high-quality set of published papers. We extend a sincere “thank you” to all the authors who submitted papers, to our hard-working Program Committee, our thoughtful reviewers, and our conscientious shepherds. May 2006 Mike Hazas and John Krumm, Program Co-chairs Thomas Strang, Workshop Chair

• Information
• Performance
• Text
• WiFi
• context-aware computing
• intelligent environments
• location sensing
• location-aware systems
• pervasive computing
• positioning algorithms
• privacy
• programming
• sensor networks
• topological mapping
• ubiquitous computing

• Computing Department, Lancaster University, Lancaster, UK

  Mike Hazas

• Microsoft Research, USA

  John Krumm

• Institute of Communications and Navigation, German Aerospace Center, 82234 Wessling/Oberpfaffenhofen, Germany and Digital Enterprise Research Institute (DERI), University of Innsbruck, Innsbruck, Austria

  Thomas Strang

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