FragViz: visualization of fragmented networks

<p>Abstract</p> <p>Background</p> <p>Researchers in systems biology use network visualization to summarize the results of their analysis. Such networks often include unconnected components, which popular network alignment algorithms place arbitrarily with respect to the...

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Main Authors: Zupan Blaž, Mramor Minca, Štajdohar Miha, Demšar Janez
Format: Article
Language:English
Published: BMC 2010-09-01
Series:BMC Bioinformatics
Online Access:http://www.biomedcentral.com/1471-2105/11/475
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author Zupan Blaž
Mramor Minca
Štajdohar Miha
Demšar Janez
author_facet Zupan Blaž
Mramor Minca
Štajdohar Miha
Demšar Janez
author_sort Zupan Blaž
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Researchers in systems biology use network visualization to summarize the results of their analysis. Such networks often include unconnected components, which popular network alignment algorithms place arbitrarily with respect to the rest of the network. This can lead to misinterpretations due to the proximity of otherwise unrelated elements.</p> <p>Results</p> <p>We propose a new network layout optimization technique called FragViz which can incorporate additional information on relations between unconnected network components. It uses a two-step approach by first arranging the nodes within each of the components and then placing the components so that their proximity in the network corresponds to their relatedness. In the experimental study with the leukemia gene networks we demonstrate that FragViz can obtain network layouts which are more interpretable and hold additional information that could not be exposed using classical network layout optimization algorithms.</p> <p>Conclusions</p> <p>Network visualization relies on computational techniques for proper placement of objects under consideration. These algorithms need to be fast so that they can be incorporated in responsive interfaces required by the explorative data analysis environments. Our layout optimization technique FragViz meets these requirements and specifically addresses the visualization of fragmented networks, for which standard algorithms do not consider similarities between unconnected components. The experiments confirmed the claims on speed and accuracy of the proposed solution.</p>
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spelling doaj.art-ffa1f396987548b8a6877e7b7d64c6042022-12-22T00:36:30ZengBMCBMC Bioinformatics1471-21052010-09-0111147510.1186/1471-2105-11-475FragViz: visualization of fragmented networksZupan BlažMramor MincaŠtajdohar MihaDemšar Janez<p>Abstract</p> <p>Background</p> <p>Researchers in systems biology use network visualization to summarize the results of their analysis. Such networks often include unconnected components, which popular network alignment algorithms place arbitrarily with respect to the rest of the network. This can lead to misinterpretations due to the proximity of otherwise unrelated elements.</p> <p>Results</p> <p>We propose a new network layout optimization technique called FragViz which can incorporate additional information on relations between unconnected network components. It uses a two-step approach by first arranging the nodes within each of the components and then placing the components so that their proximity in the network corresponds to their relatedness. In the experimental study with the leukemia gene networks we demonstrate that FragViz can obtain network layouts which are more interpretable and hold additional information that could not be exposed using classical network layout optimization algorithms.</p> <p>Conclusions</p> <p>Network visualization relies on computational techniques for proper placement of objects under consideration. These algorithms need to be fast so that they can be incorporated in responsive interfaces required by the explorative data analysis environments. Our layout optimization technique FragViz meets these requirements and specifically addresses the visualization of fragmented networks, for which standard algorithms do not consider similarities between unconnected components. The experiments confirmed the claims on speed and accuracy of the proposed solution.</p>http://www.biomedcentral.com/1471-2105/11/475
spellingShingle Zupan Blaž
Mramor Minca
Štajdohar Miha
Demšar Janez
FragViz: visualization of fragmented networks
BMC Bioinformatics
title FragViz: visualization of fragmented networks
title_full FragViz: visualization of fragmented networks
title_fullStr FragViz: visualization of fragmented networks
title_full_unstemmed FragViz: visualization of fragmented networks
title_short FragViz: visualization of fragmented networks
title_sort fragviz visualization of fragmented networks
url http://www.biomedcentral.com/1471-2105/11/475
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AT mramorminca fragvizvisualizationoffragmentednetworks
AT stajdoharmiha fragvizvisualizationoffragmentednetworks
AT demsarjanez fragvizvisualizationoffragmentednetworks