Delivering real-world ubiquitous location systems
Communications of the ACM - The disappearing computer
Semantic information retrieval in the COMPASS location system
UCS'06 Proceedings of the Third international conference on Ubiquitous Computing Systems
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
Design and implementation of a semantics-based Contextual Navigation Guide for Indoor Environments
Journal of Ambient Intelligence and Smart Environments
VI-Navi: a novel indoor navigation system for visually impaired people
Proceedings of the 12th International Conference on Computer Systems and Technologies
Design and implementation of a semantics-based Contextual Navigation Guide for Indoor Environments
Journal of Ambient Intelligence and Smart Environments
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COMPASS is a location framework where location sources are realized as plugins that contribute probability density functions to the overall localization result. In addition, COMPASS uses a decentralized location-based service discovery based on Peer-2-Peer distributed hashtables to retrieve semantical data on the determined position. In order to demonstrate the usefulness of COMPASS as a localization middleware, we have developed iNAV, an indoor navigation system that makes extensive use of the previously described mechanisms.