The plot, the clutter, the sampling and its lens: Occlusion measures for automatic clutter reduction

Geoffrey Ellis*, Alan Dix

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

26 Citations (Scopus)

Abstract

Previous work has demonstrated the use of random sampling in visualising large data sets and the practicality of a sampling lens in enabling focus+context viewing. Autosampling was proposed as a mechanism to maintain constant density within the lens without user intervention. However, this requires rapid calculation of density or clutter. This paper defines clutter in terms of the occlusion of plotted points and evaluates three possible occlusion metrics that can be used with parallel coordinate plots. An empirical study showed the relationship between these metrics was independent of location and could be explained with a surprisingly simple probabilistic model.

Original languageEnglish
Title of host publicationProceedings of the AVI '06 - Working Conference on Advanced Visual Interfaces 2006
Pages266-269
Number of pages4
DOIs
Publication statusPublished - 23 May 2006
Externally publishedYes
EventAVI '06 - Working Conference on Advanced Visual Interfaces 2006 - Venezia, Italy
Duration: 23 May 200626 May 2006

Publication series

NameProceedings of the Workshop on Advanced Visual Interfaces

Conference

ConferenceAVI '06 - Working Conference on Advanced Visual Interfaces 2006
Country/TerritoryItaly
CityVenezia
Period23/05/0626/05/06

Keywords

  • Clutter
  • Density reduction
  • Information visualisation
  • Lens
  • Occlusion
  • Overplotting
  • Random sampling
  • Sampling

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