January 17th, 2011 § 0

I’ve recently launched a website for the new Context Toolkit that I’ve adapted from the original one built by my advisor, Anind, years ago. Visit to learn more. There you can download v2.0 of the toolkit, and learn how to use it from tutorials there. The Intelligibility Toolkit is also now available for download as part of the Context Toolkit. Tutorials for how to use its various components are also located on the website.

Workshop on Intelligibility and Control in Pervasive Computing

December 24th, 2010 § 0

I am co-organizing a Pervasive 2011 workshop on Intelligibility and Control in Pervasive Computing with Jo Vermeulen and Fahim Kawsar to be held on June 12. The Call for Papers is out and more information on the workshop can be found at the workshop website.

Toolkit to Support Intelligibility in Context-Aware Applications.

June 21st, 2010 § 0

With a design framework in place from [Lim & Dey 2009], this work makes a technical contribution by facilitating the provision of 8 explanation types (Input, Output, What, Why, Why Not, How To, What If, Certainty) generated from commonly used decision models in context-aware applications (rules, decision tree, naïve Bayes, hidden Markov models). The Intelligibility Toolkit extends the Enactor framework [Dey & Newberger] by providing more types of explanations and supporting machine learning classifiers other than rules. We validate the toolkit with three demonstration applications showing how the explanations can be generated from various decision models.

intelligibility toolkit - architecture

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Anatomy of a HCI Researcher

January 25th, 2010 § 0

A fun poster design I made for a design course in CMU. It abstractly charts my academic different interests from high school to grad school, and how I became interested in HCI. You may browse the process booklet for an explanation.


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Captain A* – A*STAR Scholarship Video 2007

January 25th, 2010 § 0

Directed and produced the A*STAR Scholarship Video for 2007 with a crew of five fellow scholars. The video was produced to be shown as one of the entertainment pieces for the 2007 A*STAR Scholarship Awards Ceremony held on 27th July 2007, and to be used as a promotional video for the A*STAR Graduate Academy to use for publicizing the A*STAR National Science Scholarships.

Though the project did not receive funding, we managed to acquire professional cameras and software, from the Institute of Infocomm Research, to produce the work.

As an exploration of DVD video creation, I designed a DVD for the video in the DVD-Video format, augmented with a Data directory. This directory contains computer navigable video, graphics files, textual information, and a web interface. I am hosting a web interface for the video online, and the ISO image of the designed DVD. Viewers can mount or burn the image to view it.

Playground Building Video

January 25th, 2010 § 0

In an effort to learn some video editing, I cooked up this piece depicting some of us building a playground for our church, Bethel Grove Bible Church, in Ithaca. It uses two video footages and a very limited pool of photographs, and was assembled using Windows Movie Maker.

Click on the image to play the video, or right click and select “Save Link As” to save the video.

Art 121: Introduction to Painting

January 25th, 2010 § 0

I took an introduction to painting course to learn another skill in art. It was an interesting experience to learn how to see images as shapes of colour, instead of lines and shading.

Art 121
7 photos