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
Models of Space in a Mixed-Reality System
IV '04 Proceedings of the Information Visualisation, Eighth International Conference
Sharing the square: collaborative leisure in the city streets
ECSCW'05 Proceedings of the ninth conference on European Conference on Computer Supported Cooperative Work
Towards realizing global scalability in context-aware systems
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
Commonsense spatial reasoning for context–aware pervasive systems
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
Issues and requirements for bayesian approaches in context aware systems
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
A survey of visibility for walkthrough applications
IEEE Transactions on Visualization and Computer Graphics
Reality-based interaction: a framework for post-WIMP interfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Mining interesting locations and travel sequences from GPS trajectories
Proceedings of the 18th international conference on World wide web
Learning travel recommendations from user-generated GPS traces
ACM Transactions on Intelligent Systems and Technology (TIST)
Uncertainty Management in Context-Aware Applications: Increasing Usability and User Trust
Wireless Personal Communications: An International Journal
Mining GPS data to determine interesting locations
Proceedings of the 8th International Workshop on Information Integration on the Web: in conjunction with WWW 2011
Mining social media to create personalized recommendations for tourist visits
Proceedings of the 2nd International Conference on Computing for Geospatial Research & Applications
A time cost optimization for similar scenarios mobile GIS queries
Journal of Visual Languages and Computing
A study of recommending locations on location-based social network by collaborative filtering
Canadian AI'12 Proceedings of the 25th Canadian conference on Advances in Artificial Intelligence
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Electronic tourist guide systems typically recommend locations and sometimes provide navigation information. However, previously such systems were rather naive about what constituted information close to and thus relevant for the user. In this paper we show how to exploit knowledge about features in the real world to compute whether an information resource concerns something that the user can probably see. At run-time, we can take a set of foci, that is 2D polygons to which data is attached, and then filter away those foci that are invisible because they are occluded by nearby buildings. This is performed with the awareness of the inconsistencies and lack of accuracy in both mapping technology and GPS positioning in urban spaces. We have also developed tools to upload geotagged photos and mark foci polygons on a map. Using visibility-filtered information, less cluttered maps can be provided, and the user experience enhanced through removal of irrelevant information.