On clusterings: Good, bad and spectral
Journal of the ACM (JACM)
Ubi-learning integrates indoor and outdoor experiences
Communications of the ACM - Interaction design and children
A relative positioning system for co-located mobile devices
Proceedings of the 3rd international conference on Mobile systems, applications, and services
A Dangerous Location Aware System for Assisting Kids Safety Care
AINA '06 Proceedings of the 20th International Conference on Advanced Information Networking and Applications - Volume 01
A case study of tangible flags: a collaborative technology to enhance field trips
Proceedings of the 2006 conference on Interaction design and children
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Modelling symmetry of activity as an indicator of collocated group collaboration
UMAP'11 Proceedings of the 19th international conference on User modeling, adaption, and personalization
Virtual compass: relative positioning to sense mobile social interactions
Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
Pervasive'12 Proceedings of the 10th international conference on Pervasive Computing
SymPhoney: a coordinated sensing flow execution engine for concurrent mobile sensing applications
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
TalkBetter: family-driven mobile intervention care for children with language delay
Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing
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On school field trips, chaperoning teachers' foremost concern is the safety of the children, particularly ensuring that none of them go missing. However, they have limited attention resources and face many challenges in keeping track of their charges. We present RubberBand, an assistive application that helps alleviate the teacher's burden. Our approach adapts to diverse field trip environmental and child behavioral dynamicity, utilizing observations of the relative dispersion of children and their tendency to form sub-groups.