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		<doi>10.1109/SIBGRAPI.2015.38</doi>
		<citationkey>OnoSiCoPaPaNo:2015:ViExMu</citationkey>
		<title>Concentric RadViz: Visual Exploration of Multi-Task Classification</title>
		<format>On-line</format>
		<year>2015</year>
		<numberoffiles>1</numberoffiles>
		<size>1887 KiB</size>
		<author>Ono, Jorge Henrique Piazentin,</author>
		<author>Sikansi, Fabio,</author>
		<author>Corrêa, Débora Cristina,</author>
		<author>Paulovich, Fernando Vieira,</author>
		<author>Paiva, Afonso,</author>
		<author>Nonato, Luis Gustavo,</author>
		<affiliation>ICMC - USP</affiliation>
		<affiliation>ICMC - USP</affiliation>
		<affiliation>ICMC - USP</affiliation>
		<affiliation>ICMC - USP</affiliation>
		<affiliation>ICMC - USP</affiliation>
		<affiliation>ICMC - USP</affiliation>
		<editor>Papa, João Paulo,</editor>
		<editor>Sander, Pedro Vieira,</editor>
		<editor>Marroquim, Ricardo Guerra,</editor>
		<editor>Farrell, Ryan,</editor>
		<e-mailaddress>jorgehpo@gmail.com</e-mailaddress>
		<conferencename>Conference on Graphics, Patterns and Images, 28 (SIBGRAPI)</conferencename>
		<conferencelocation>Salvador, BA, Brazil</conferencelocation>
		<date>26-29 Aug. 2015</date>
		<publisher>IEEE Computer Society</publisher>
		<publisheraddress>Los Alamitos</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Full Paper</tertiarytype>
		<transferableflag>1</transferableflag>
		<versiontype>finaldraft</versiontype>
		<keywords>RadViz, Multi-task classification, Information Visualization.</keywords>
		<abstract>The discovery of patterns in large data collections is a difficult task. Visualization and machine learning techniques have emerged as a way to facilitate data analysis, providing tools to uncover  relevant patterns from the data. This paper presents Concentric RadViz, a general purpose class visualization system that takes into account  multi-class, multi-label and multi-task classifiers. Concentric RadViz uses a force attenuation scheme, which minimizes cluttering and ambiguity in the visual layout. In~addition, the user can add concentric circles to the layout in order to represent classification tasks. Our validation results and the application of Concentric RadViz for two real collections suggest that this tool can reveal important data patterns and relations. In our application, the user can interact with the visualization by selecting regions of interest according to specific criteria and changing projection parameters.</abstract>
		<language>en</language>
		<targetfile>PID3770563.pdf</targetfile>
		<usergroup>jorgehpo@gmail.com</usergroup>
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