The world through the computer: computer augmented interaction with real world environments
Proceedings of the 8th annual ACM symposium on User interface and software technology
Cyberguide: a mobile context-aware tour guide
Wireless Networks - Special issue: mobile computing and networking: selected papers from MobiCom '96
ISWC '97 Proceedings of the 1st IEEE International Symposium on Wearable Computers
Augment-able Reality: Situated Communication through Physical and Digital Spaces
ISWC '98 Proceedings of the 2nd IEEE International Symposium on Wearable Computers
SpaceTag: An Overlaid Virtual System and its Applications
ICMCS '99 Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2
Developing a GIS Using a Mobile Phone Equipped with a Camera and a GPS, and Its Exhibitions
ICDCSW '04 Proceedings of the 24th International Conference on Distributed Computing Systems Workshops - W7: EC (ICDCSW'04) - Volume 7
Basic study on a recommendation method considering region-restrictedness of spots
DASFAA'10 Proceedings of the 15th international conference on Database systems for advanced applications
Investigation of recommendation method considering region-restrictedness of spots
W2GIS'11 Proceedings of the 10th international conference on Web and wireless geographical information systems
Insightful slideshow: automatic composition of personal photograph slideshow using the web
Intelligent Decision Technologies - Special issue on design of intelligent environment
Experiments of entertainment applications of a virtual world system for mobile phones
ICEC'05 Proceedings of the 4th international conference on Entertainment Computing
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SpaceTag is an object that can be accessed only from limited locations and time period. SpaceTags are served and distributed from a central server which should be managed by a service provider. Users of the SpaceTag system can access SpaceTags with portable terminals equipped with location sensors and wireless communication device such as mobile phones. Users walk around in a city and find SpaceTags that can be only found at the location. SpaceTag is thus an inconvenient media, but suitable for gaming, advertising, city guide information, etc. A user can also put a SpaceTag at the location where (s)he is, which can be found by other people nearby. This feature also enables local public communication applications. In this paper, we will argue why this inconvenient but simple virtual platform can support various applications for a digital city. We will also argue social impacts of these applications.