Developing a context-aware electronic tourist guide: some issues and experiences
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Rendering effective route maps: improving usability through generalization
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
GeoNotes: Social and Navigational Aspects of Location-Based Information Systems
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
Unearthing Virtual History: Using Diverse Interfaces to Reveal Hidden Virtual Worlds
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
A Probabilistic Room Location Service for Wireless Networked Environments
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
Challenge: ubiquitous location-aware computing and the "place lab" initiative
Proceedings of the 1st ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Urban Tapestries: Wireless networking, public authoring and social knowledge
Personal and Ubiquitous Computing
A survey of visibility for walkthrough applications
IEEE Transactions on Visualization and Computer Graphics
Gates of global perception: forensic graphics for evidence presentation
Proceedings of the 13th annual ACM international conference on Multimedia
A natural wayfinding exploiting photos in pedestrian navigation systems
Proceedings of the 8th conference on Human-computer interaction with mobile devices and services
Minimising pedestrian navigational ambiguities through geoannotation and temporal tagging
HCI'07 Proceedings of the 12th international conference on Human-computer interaction: interaction platforms and techniques
Using location, bearing and motion data to filter video and system logs
PERVASIVE'07 Proceedings of the 5th international conference on Pervasive computing
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In this paper we present an approach for exploiting knowledge about features in the real world in order to compute visibility of buildings. This is performed with the awareness of the inconsistencies and lack of accuracy in both mapping technology and GPS positioning in urban spaces. Electronic tourist guide systems typically recommend locations and sometimes provide navigation information. We have augmented this system to exploit visibility knowledge about neighbouring physical features.