Andreas Zinnen, Christian Wojek, Bernt Schiele (auth.), Tanzeem Choudhury, Aaron Quigley, Thomas Strang, Koji Suginuma (eds.)3642017207, 9783642017209
This book constitutes the refereed proceedings of the 4th International Symposium on Location and Context Awareness, LoCA 2009, held in Tokyo, Japan, in May 2009.
The 18 revised full papers presented were carefully selected from 77 submissions. The papers describe original, previously unpublished research results, including new hardware platforms for sensing location and context, machine learning techniques for inferring user location and context from low-level sensor data, location and context representation, management, and distribution, and privacy policies and communication protocols for location and context information.
Table of contents :
Front Matter….Pages –
Multi Activity Recognition Based on Bodymodel-Derived Primitives….Pages 1-18
Activity Inference through Sequence Alignment….Pages 19-36
Improving Location Fingerprinting through Motion Detection and Asynchronous Interval Labeling….Pages 37-51
Using Context Annotated Mobility Profiles to Recruit Data Collectors in Participatory Sensing….Pages 52-69
Location Diversity: Enhanced Privacy Protection in Location Based Services….Pages 70-87
Nonvisual, Distal Tracking of Mobile Remote Agents in Geosocial Interaction….Pages 88-102
Directional Beaconing: A Robust WiFi Positioning Method Using Angle-of-Emission Information….Pages 103-119
Bluetooth Tracking without Discoverability….Pages 120-137
Error Estimation for Indoor 802.11 Location Fingerprinting….Pages 138-155
Activity Recognition from Sparsely Labeled Data Using Multi-Instance Learning….Pages 156-173
A Framework for Creating and Using Maps of Privately Owned Spaces….Pages 174-191
Daily Routine Recognition through Activity Spotting….Pages 192-206
SofTOA: Software Ranging for TOA-Based Positioning of WLAN Terminals….Pages 207-221
Position Estimation from UWB Pseudorange and Angle-of-Arrival: A Comparison of Non-linear Regression and Kalman Filtering….Pages 222-239
An Ultrasonic 3D Positioning System Using a Single Compact Receiver Unit….Pages 240-253
LOCK: A Highly Accurate, Easy-to-Use Location-Based Access Control System….Pages 254-270
Characterizing the Space by Presenting Non-visual Information….Pages 271-282
Back Matter….Pages –
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