Extending taxonomic visualisation to incorporate synonymy and structural markers.

Graham, Martin and Kennedy, Jessie (2005) Extending taxonomic visualisation to incorporate synonymy and structural markers. Information Visualization, 4 (3). 206 - 223. ISSN 1473 8716

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The visualisation of taxonomic hierarchies has evolved from indented lists of names to techniques that can display thousands of nodes and onto hundreds of thousands of nodes over multiple taxonomies. However, challenges remain within multiple hierarchy visualisation, and for taxonomic hierarchy visualisation in particular. Firstly, at present, there is no support for handling specific taxonomic information such as synonymy, with current visualisations matching solely on names. Synonymy is extremely important as it reflects expert opinion on the compatibility of data held in separate taxonomies, and is needed to produce an accurate picture of taxonomic overlap. Also, current techniques for exploring large hierarchies find it difficult to convey internal reorganisations between hierarchies, with most systems showing only addition, removal or wide-ranging fragmentation of information between taxonomies. Finding the source of changes that have occurred within an existing structure is currently only achievable through exhaustive drill-down exploration. This paper describes work that tackles these problems, incorporating synonymy information into a model for multiple hierarchy visualisation of large taxonomies, and also detailing techniques that aid navigation for discovering structural re-organisations between hierarchies and for revealing information about nodes that lie below the effective display resolution of the hierarchy layout. Two examples on real taxonomic data sets are annotated to show the effectiveness of these techniques in operation.

Item Type: Article
Print ISSN: 1473 8716
Electronic ISSN: 1473 8724
Additional Information: Special issue on 'Bioinformatics visualization'.
Uncontrolled Keywords: Information systems; Life sciences; Taxonomy; Multiple tree visualisation; Tree layout; Multiple hierarchies; Synonomy; Computer applications; Pattern recognition; Design methodology; Drill-down;
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Computing
Dewey Decimal Subjects: 500 Science > 570 Life sciences; biology > 578 Natural history of organisms
000 Computer science, information & general works > 000 Computer science, knowledge & systems > 005 Computer programming, programs & data
Library of Congress Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QA Mathematics > QA76 Computer software
Item ID: 1793
Depositing User: RAE Import
Date Deposited: 22 May 2008 15:49
Last Modified: 16 Sep 2015 18:35

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