%0 Journal Article %J IEEE Transactions on Visualization and Computer Graphics %D 2006 %T An Insight-Based Longitudinal Study of Visual Analytics %A Saraiya, Purvi %A North, Chris %A Lam, Vy %A Duca, Karen %K Evaluation %K GUI %K information visualization %B IEEE Transactions on Visualization and Computer Graphics %I IEEE Educational Activities Department %C Piscataway, NJ, USA %V 12 %P 1511–1522 %G eng %R http://dx.doi.org/10.1109/TVCG.2006.85