Constructing Overview + Detail Dendrogram-Matrix views Jin CHEN (presenter) Alan M. MacEachren Donna J. Peuquet GeoVISTA Center Department of Geography.

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Constructing Overview + Detail Dendrogram-Matrix views Jin CHEN (presenter) Alan M. MacEachren Donna J. Peuquet GeoVISTA Center Department of Geography Penn State University InfoVis 2009 – Oct 14, Atlantic City, New Jersey

Large dendrograms suffer occlusion problems  Occlusion  too nodes are fitted too closely or on top of others  hard to navigate and interact with the hierarchy  hard to identify patterns occlusion

Concise overview + detail view A linked detail view displays selected sub-trees Overview displays the backbones of the hierarchy Benefit - no occlusion - easy navigation & interaction - enhanced scalability A new metric for constructing a concise overview

Time and Place for our presentation Wednesday, 10:50AM Session of Bioinformatics Visualization