Distributed mediation of ambiguous context in aware environments
Proceedings of the 15th annual ACM symposium on User interface software and technology
Understanding and Using Context
Personal and Ubiquitous Computing
Guest Editors' Introduction: Context-Aware Computing
IEEE Pervasive Computing
Location management in pervasive systems
ACSW Frontiers '03 Proceedings of the Australasian information security workshop conference on ACSW frontiers 2003 - Volume 21
An infrastructure for context-awareness based on first order logic
Personal and Ubiquitous Computing
Reasoning about Uncertain Contexts in Pervasive Computing Environments
IEEE Pervasive Computing
Designing mediation for context-aware applications
ACM Transactions on Computer-Human Interaction (TOCHI)
Inconsistency detection and resolution for context-aware middleware support
Proceedings of the 10th European software engineering conference held jointly with 13th ACM SIGSOFT international symposium on Foundations of software engineering
Towards improving trust in context-aware systems by displaying system confidence
Proceedings of the 7th international conference on Human computer interaction with mobile devices & services
A Dynamic Context-Conflict Management Scheme for Group-Aware Ubiquitous Computing Environments
COMPSAC '05 Proceedings of the 29th Annual International Computer Software and Applications Conference - Volume 01
Modeling and Reasoning about Uncertainty in Context-Aware Systems
ICEBE '05 Proceedings of the IEEE International Conference on e-Business Engineering
Continuous Tracking of User Location in WLANs Using Recurrent Neural Networks
ENC '05 Proceedings of the Sixth Mexican International Conference on Computer Science
ACM Transactions on Computer-Human Interaction (TOCHI)
Visualization of uncertainty in context aware mobile applications
Proceedings of the 8th conference on Human-computer interaction with mobile devices and services
Managing Quality of Context in Pervasive Computing
QSIC '06 Proceedings of the Sixth International Conference on Quality Software
A Quality Measurement Method of Context Information in Ubiquitous Environments
ICHIT '06 Proceedings of the 2006 International Conference on Hybrid Information Technology - Volume 02
Exploiting real world knowledge in ubiquitous applications
Personal and Ubiquitous Computing
Ubiquitous computing in the real world: lessons learnt from large scale RFID deployments
Personal and Ubiquitous Computing
A survey on context-aware systems
International Journal of Ad Hoc and Ubiquitous Computing
Towards an application framework for context-aware m-health applications
International Journal of Internet Protocol Technology
Coping with Uncertainty in a Location-Based Game
IEEE Pervasive Computing
IEEE Pervasive Computing
Using fuzzy decision tree to handle uncertainty in context deduction
ICIC'06 Proceedings of the 2006 international conference on Intelligent computing: Part II
Type uncertainty in ontologically-grounded qualitative probabilistic matching
ECSQARU'05 Proceedings of the 8th European conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty
Learning and recognizing the places we go
UbiComp'05 Proceedings of the 7th international conference on Ubiquitous Computing
Activities, context and ubiquitous computing
Computer Communications
Adaptive interaction support in ambient-aware environments based on quality of context information
Multimedia Tools and Applications
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Uncertainty in context-aware computing is mainly a consequence of the complexity of context acquisition mechanisms and context processing. The presence of uncertainty may harm the users' confidence in the application, rendering it useless. This paper describes a three-phase strategy to manage uncertainty by identifying its possible sources, representing uncertain information, and determining how to proceed, once uncertain context is detected. We conducted an experiment to assess the impact and utility of uncertainty management in a location-aware museum guide that incorporated the approach proposed. The impact was measured by comparing the number of erroneous location estimations and the number of interactions performed by users. A survey was used to measure user friendliness, the utility of the application and user trust among 118 museum visitors who participated in the experiment. Results suggest that uncertainty management helps improve the accuracy of context estimates and the user's perception on the reliability of the application.