The problem of visualizing huge amounts of data is well known in Infor- mation Visualization. Dealing with a large number of items forces almost any kind of Infovis technique to reveal its limits in terms of expressivity and scalability. In this paper we focus on 2D scatter plots, proposing a "feature preservation" approach, based on the idea of modeling the visu- alization in a virtual space in order to analyze its features (e.g, absolute density, relative density, etc.). In this way we provide a formal framework to measure the visual overlapping, obtaining precise quality metrics about the visualization degradation and devising automatic sampling strategies able to improve the overall image quality. Metrics and algorithms have been improved through suitable user studies.

Give chance a chance: modeling density to enhance scatter plot quality through random data sampling / E., Bertini; Santucci, Giuseppe. - In: INFORMATION VISUALIZATION. - ISSN 1473-8716. - 5.2:(2006), pp. 95-110. [10.1057/palgrave.ivs.9500122]

Give chance a chance: modeling density to enhance scatter plot quality through random data sampling

SANTUCCI, Giuseppe
2006

Abstract

The problem of visualizing huge amounts of data is well known in Infor- mation Visualization. Dealing with a large number of items forces almost any kind of Infovis technique to reveal its limits in terms of expressivity and scalability. In this paper we focus on 2D scatter plots, proposing a "feature preservation" approach, based on the idea of modeling the visu- alization in a virtual space in order to analyze its features (e.g, absolute density, relative density, etc.). In this way we provide a formal framework to measure the visual overlapping, obtaining precise quality metrics about the visualization degradation and devising automatic sampling strategies able to improve the overall image quality. Metrics and algorithms have been improved through suitable user studies.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
Give chance a chance: modeling density to enhance scatter plot quality through random data sampling / E., Bertini; Santucci, Giuseppe. - In: INFORMATION VISUALIZATION. - ISSN 1473-8716. - 5.2:(2006), pp. 95-110. [10.1057/palgrave.ivs.9500122]
File allegati a questo prodotto
File Dimensione Formato  
VE_2006_11573-69630.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 726.79 kB
Formato Adobe PDF
726.79 kB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/69630
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 43
  • ???jsp.display-item.citation.isi??? ND
social impact