A hybrid indoor navigation system
Proceedings of the 6th international conference on Intelligent user interfaces
Presenting route instructions on mobile devices
Proceedings of the 8th international conference on Intelligent user interfaces
A relative positioning system for co-located mobile devices
Proceedings of the 3rd international conference on Mobile systems, applications, and services
Modeling and Computing Ternary Projective Relations between Regions
IEEE Transactions on Knowledge and Data Engineering
A computational model for spatial expression resolution
Proceedings of the 9th international conference on Multimodal interfaces
Metric details of topological line-line relations
International Journal of Geographical Information Science
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