Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
A comparative study between RadViz and Star Coordinates
Year:2015
Research Areas
  • Remote sensing
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
2,3
Impact info
Volume
22
10.1109/TVCG.2015.2467324
Journal number
1
From page
619
To page
628
Month
ENERO
Ranking
Rank 26, Quartile Q1, SJR 2,302, H index 86 Total Docs. (2014) 250 Total Docs. (3years) 791 Total Refs. 9532 Total Cites (3years) 2608 Citable Docs. (3years) 742 Cites / Doc. (2years) 3.11 Ref. / Doc.38.13 Country United States
Participants
  • Autor: Manuel Rubio Sánchez (Universidad Rey Juan Carlos I)
  • Autor: Laura Raya (U-TAD)
  • Autor: Francisco Diaz Perez (UPM)
  • Autor: Alberto Sánchez (Universidad Rey Juan Carlos I)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen
  • Departamento: Sistemas Informáticos
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)