Guest Editors' Introduction: Context-Aware Computing
IEEE Pervasive Computing
Learning and reasoning about interruption
Proceedings of the 5th international conference on Multimodal interfaces
Reasoning about Uncertain Contexts in Pervasive Computing Environments
IEEE Pervasive Computing
Designing mediation for context-aware applications
ACM Transactions on Computer-Human Interaction (TOCHI)
A Framework of Social Interaction Support for Ubiquitous Learning
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 2
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
Modeling and Reasoning about Uncertainty in Context-Aware Systems
ICEBE '05 Proceedings of the IEEE International Conference on e-Business Engineering
Privacy and interruptions in team awareness systems
UAHCI'07 Proceedings of the 4th international conference on Universal access in human computer interaction: coping with diversity
Dynamic and flexible learning in distributed and collaborative scenarios using grid technologies
CRIWG'07 Proceedings of the 13th international conference on Groupware: design implementation, and use
Directions to acknowledge learners' self-organization in CSCL macro-scripts
CRIWG'07 Proceedings of the 13th international conference on Groupware: design implementation, and use
Using fuzzy decision tree to handle uncertainty in context deduction
ICIC'06 Proceedings of the 2006 international conference on Intelligent computing: Part II
Activities, context and ubiquitous computing
Computer Communications
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Context awareness is a necessary feature for mobile collocated collaborative learning. In this paper we describe how requirements for context-aware cooperative learning activities are derived from the jigsaw technique augmented with the use of mobile devices, applications to support the activities of groups, and tools to provide context-awareness to detect group formation. The emergence of groups is detected based on the location of the students within the classroom, but this information has to be careful filtered to evaluate the degree of uncertainty and protect from erroneous estimations. A three-phase strategy to manage uncertainty by identifying possible sources of uncertainty, representing uncertain information, and determining how to proceed under the presence of uncertainty is used for this propose. These requirements are validated and confirmed in experiments with students working together in the classroom, measuring neutral or positive effects on learning and the usefulness of introducing mobile devices, group support applications, and context awareness. The ratio of unwanted interruptions to users made by the system is used to evaluate the utility of the system. Results show that by managing uncertainty, location estimation becomes more reliable, thus increasing the usefulness of the learning application.