The POSTGRES next generation database management system
Communications of the ACM
Next century challenges: Nexus—an open global infrastructure for spatial-aware applications
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Project Aura: Toward Distraction-Free Pervasive Computing
IEEE Pervasive Computing
Inclusion of New Types in Relational Data Base Systems
Proceedings of the Second International Conference on Data Engineering
Location sensing and privacy in a context-aware computing environment
IEEE Wireless Communications
A Location Model for Communicating and Processing of Context
Personal and Ubiquitous Computing
Location history in a low-cost context awareness environment
ACSW Frontiers '03 Proceedings of the Australasian information security workshop conference on ACSW frontiers 2003 - Volume 21
An Architecture for the Integration of Physical and Informational Spaces
Personal and Ubiquitous Computing
On location models for ubiquitous computing
Personal and Ubiquitous Computing
MiddleWhere: a middleware for location awareness in ubiquitous computing applications
Proceedings of the 5th ACM/IFIP/USENIX international conference on Middleware
LAIR: location awareness information representation
ICCOMP'05 Proceedings of the 9th WSEAS International Conference on Computers
Semantics of Place: Ontology Enrichment
IBERAMIA '08 Proceedings of the 11th Ibero-American conference on AI: Advances in Artificial Intelligence
A topology-based semantic location model for indoor applications
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Location Conflict Resolution with an Ontology
Pervasive '08 Proceedings of the 6th International Conference on Pervasive Computing
Ontonym: a collection of upper ontologies for developing pervasive systems
Proceedings of the 1st Workshop on Context, Information and Ontologies
Towards Ontology-Based Formal Verification Methods for Context Aware Systems
Pervasive '09 Proceedings of the 7th International Conference on Pervasive Computing
A Framework for Creating and Using Maps of Privately Owned Spaces
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
Proceedings of the 2009 international conference on Pervasive services
A hybrid positioning system for technology-independent location-aware computing
Software—Practice & Experience
Qu'est-ce qu'une surface d'affichage?: une analyse rétrospective
Proceedings of the 21st International Conference on Association Francophone d'Interaction Homme-Machine
Location-dependent query processing: Where we are and where we are heading
ACM Computing Surveys (CSUR)
Collaborative context management framework for mobile ad hoc network environments
Proceedings of the 2010 ACM Symposium on Applied Computing
A unified semantics space model
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
SEUS'07 Proceedings of the 5th IFIP WG 10.2 international conference on Software technologies for embedded and ubiquitous systems
Modeling people's place naming preferences in location sharing
Proceedings of the 12th ACM international conference on Ubiquitous computing
A fine-grained context-dependent model for indoor spaces
Proceedings of the 2nd ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness
mPATH: a software framework for interactive visualization of behavior history
Journal of Mobile Multimedia
A hybrid spatial model for representing indoor environments
W2GIS'06 Proceedings of the 6th international conference on Web and Wireless Geographical Information Systems
UCS'06 Proceedings of the Third international conference on Ubiquitous Computing Systems
A core model supporting location-aware computing in smart classroom
ICWL'05 Proceedings of the 4th international conference on Advances in Web-Based Learning
Spatial context in role-based access control
ICISC'06 Proceedings of the 9th international conference on Information Security and Cryptology
A peer-to-peer semantic-based service discovery method for pervasive computing environment
UIC'07 Proceedings of the 4th international conference on Ubiquitous Intelligence and Computing
An advanced location-aware physical annotation system: From models to implementation
Journal of Ambient Intelligence and Smart Environments - Ambient and Smart Component Technologies for Human Centric Computing
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Location modeling and representation are crucial technologies for context-aware applications. In this paper, we present a novel location model combining the virtues of both the hierarchical and coordinate location models, and we introduce a computable location identifier, namely Aura Location Identifier (ALI). We then describe how the Aura space service uses this hybrid model to handle spatial queries for contextaware applications. Asimple example of such a query is a range query, e.g. "select name from printer where distance(location, 'ali://cmu/wean-hall/floor3/3100-corridor#(10,10,0)')