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11 - Computer Science and Informatics
Royal Holloway, University of London
An intuitive graphical visualization technique for the interrogation of transcriptome data
<20>The invention presented in this paper is a new visualisation. Instead of visualising a high-dimensional (HD) data simply as a 2D scatterplot, we (automatically) augment the scatterplot with glyphs that indicate near-neighbour relationships in HD space. This 'neighbour-plot' is more expressive than a scatterplot, showing which points in the 2D visualisation are actually close in HD space. Neighbour-plots complement nonlinear dimension-reduction methods by showing where a visualisation is locally correct and where it is misleading. Reearchers at NIMR have shown that these ‘neighbour-plots’ better the existing methods of visualising transcriptome data. (Software is available.)