Andre Esakia wins CS Outstanding GTA of the Year Award

Congratulations to Andre for his efforts in leading the creation and teaching of Mobile Software Development course.

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Fisheye Word Cloud for Temporal Sentiment Exploration

Wang J, Dent K, North C. Fisheye Word Cloud for Temporal Sentiment Exploration. In: CHI '13 Extended Abstracts on Human Factors in Computing Systems. CHI '13 Extended Abstracts on Human Factors in Computing Systems. New York, NY, USA; 2013. p. 1767–1772. Available from:

ReCloud: Semantics-Based Word Cloud Visualization of User Reviews

User reviews, like those found on Yelp and Amazon, have become an important reference for decision making in daily life, for example, in dining, shopping and entertainment. However, large amounts of available reviews make the reading process tedious. Existing word cloud visualizations attempt to provide an overview. However their randomized layouts do not reveal content relationships to users. In this paper, we present ReCloud, a word cloud visualization of user reviews that arranges semantically related words as spatially proximal.

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Welcome to the InfoVis Lab at Virginia Tech, led by Dr. Chris North. It is part of the Discovery Analytics Center and Dept of Computer Science.

The major themes of our research are: big data visualization and analytics, usable interactive human-in-the-loop analytics, novel display and interaction techniques, large high-resolution display workspaces, visual text analytics.


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