Memorias de investigación
Research Publications in journals:
A comparative study between RadViz and Star Coordinates
Year:2016

Research Areas
  • Information technology and adata processing

Information
Abstract
RadViz and star coordinates are two of the most popular projection-based multivariate visualization techniques that arrange variables in radial layouts. Formally, the main difference between them consists of a nonlinear normalization step inherent in RadViz. In this paper we show that, although RadViz can be useful when analyzing sparse data, in general this design choice limits its applicability and introduces several drawbacks for exploratory data analysis. In particular, we observe that the normalization step introduces nonlinear distortions, can encumber outlier detection, prevents associating the plots with useful linear mappings, and impedes estimating original data attributes accurately. In addition, users have greater flexibility when choosing different layouts and views of the data in star coordinates. Therefore, we suggest that analysts and researchers should carefully consider whether RadViz's normalization step is beneficial regarding the data sets' characteristics and analysis tasks.
International
Si
JCR
Si
Title
Ieee Transactions on Visualization And Computer Graphics
ISBN
1077-2626
Impact factor JCR
1,4
Impact info
Volume
22
10.1109/TVCG.2015.2467324
Journal number
From page
619
To page
628
Month
AGOSTO
Ranking
Participants

Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro de Investigación en Simulación Computacional