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Olduvai / Accordion Drawing olduvai.sf

Olduvai / Accordion Drawing http://olduvai.sf.net. Tamara Munzner, James Slack, Kristian Hildebrand University of British Columbia. TreeJuxtaposer. Visualization of phylogenetic trees Interactive comparison of several trees with over one million nodes Focus + Context Guaranteed visibility

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Olduvai / Accordion Drawing olduvai.sf

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  1. Olduvai /Accordion Drawinghttp://olduvai.sf.net Tamara Munzner, James Slack, Kristian Hildebrand University of British Columbia

  2. TreeJuxtaposer • Visualization of phylogenetic trees • Interactive comparison of several trees with over one million nodes • Focus + Context • Guaranteed visibility • User-defined groups • Searching

  3. Focus+Context • Display large datasets using scalable drawing techniques • Stretch interesting details, smoosh surroundings • Interaction uses a rubber sheet with tacked down borders approach • Never push nodes off-screen • Never lose track of marked groups of interest

  4. User-Defined Groups • A group is a forest of color identified nodes • Select nodes or subtrees for group inclusion • Guranteed visibility of groups • Marked groups drawn even when small

  5. Searching • Text based search, reduce search results as you type • Search for nodes of interest with mouse

  6. Tree Comparison • Using our Best Corresponding Node (BCN) algorithm: • Mouse-over highlighting • Simultaneous tree navigation • Group selection across trees

  7. SequenceJuxtaposer • Navigation and comparison of biomolecular sequences • Aligned sequences shown horizontally • Same rubber sheet interaction metaphor as TreeJuxtaposer • Browse large collections of sequences of 30 million nodes • Differences in aligned columns are highlighted • Motif searching • Visualize annotations

  8. Differences • Difference threshold assists in determining aligned nucleotides, shows possible strong phylogenetic signals

  9. Searching • Motif searching • Matching bases are marked as landmarks and are guaranteed to be visible

  10. Annotations • Include annotations to understand sequences

  11. Webpage • Olduvai online: http://olduvai.sf.net

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