This paper has recently been published in ACM Interaction Magazine. You may find this interesting.

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Syed Ishtiaque Ahmed Assistant Professor Department of Computer Science University of Toronto, ON, CA Ph: +1 647 220 3482 Skype: syed.ishtiaque.ahmed web: https://www.ishtiaque.net/ My Availability: Google Calendar Link https://calendar.google.com/calendar/embed?src=ishtiaque.uoft%40gmail.com&ctz=America%2FToronto