GLay : Layout that minimizes the total length of the edges between clusters

[Pascal KREZEL]

Hi,

The GLay community detection plugin is very interesting to have a better understanding of a network. However  the position of the clusters  seem to be based on the size of the clusters. It  doesn't take into account the number of edges between the clusters. A better layout would minimize the length of the edges between the clusters. Is there such a 

layout presently ? 

Pascal

[piet molenaar]

Hi Pascal,

To my knowledge there is no such visualization, it would be interesting to develop. 

Of course the standard layouts provide you with edge based weighted layouts. But this loses the cluster structure.

You might be able to use the group ids to collapse the nodes in the clusters and use the intergroup edges to provide a new layout, but again this doesn't show the overall structure.

Cheers, 

Piet 

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Piet Molenaar
piet...@gmail.com
Department of Oncogenomics, M1-131
Academic Medical Center
University of Amsterdam
Meibergdreef 9
1105 AZ Amsterdam
the Netherlands

tel (+31) 20-5666592
fax (+31) 20-6918626

[Pascal KREZEL]

Hi Piet,

Thank you for your answer.

May be I will develop this layout if i have time.

Pascal

Le jeudi 8 décembre 2016 18:23:47 UTC+1, Piet a écrit :

Hi Pascal,

To my knowledge there is no such visualization, it would be interesting to develop. 

Of course the standard layouts provide you with edge based weighted layouts. But this loses the cluster structure.

You might be able to use the group ids to collapse the nodes in the clusters and use the intergroup edges to provide a new layout, but again this doesn't show the overall structure.

Cheers, 

Piet 

On Wed, Dec 7, 2016 at 10:09 AM, Pascal KREZEL <pascal...@gmail.com> wrote:

Hi,

The GLay community detection plugin is very interesting to have a better understanding of a network. However  the position of the clusters  seem to be based on the size of the clusters. It  doesn't take into account the number of edges between the clusters. A better layout would minimize the length of the edges between the clusters. Is there such a 

layout presently ? 

Pascal

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[ugurdogrusoz]

Hi,

I am not sure what exactly you need but if you're looking for a layout algorithm that will respect the clustering in a network and also try to satisfy general graph drawing criteria such as minimization of edge-edge crossings, and keeping edge lengths uniform, you might be interested in our algorithm:

http://www.cs.bilkent.edu.tr/~ivis/cise.html

http://www.cs.bilkent.edu.tr/~ivis/layout/cise-animated-demo/cise.html

Best,

UD

[piet molenaar]

Would be a nice app to add to the store!

Good luck,

Piet

On Fri, Dec 9, 2016 at 6:22 PM, Pascal KREZEL <pascal...@gmail.com> wrote:

Hi Piet,

Thank you for your answer.

May be I will develop this layout if i have time.

Pascal

Le jeudi 8 décembre 2016 18:23:47 UTC+1, Piet a écrit :

Hi Pascal,

To my knowledge there is no such visualization, it would be interesting to develop. 

Of course the standard layouts provide you with edge based weighted layouts. But this loses the cluster structure.

You might be able to use the group ids to collapse the nodes in the clusters and use the intergroup edges to provide a new layout, but again this doesn't show the overall structure.

Cheers, 

Piet 

On Wed, Dec 7, 2016 at 10:09 AM, Pascal KREZEL <pascal...@gmail.com> wrote:

Hi,

The GLay community detection plugin is very interesting to have a better understanding of a network. However  the position of the clusters  seem to be based on the size of the clusters. It  doesn't take into account the number of edges between the clusters. A better layout would minimize the length of the edges between the clusters. Is there such a 

layout presently ? 

Pascal

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Piet Molenaar
piet...@gmail.com
Department of Oncogenomics, M1-131
Academic Medical Center
University of Amsterdam
Meibergdreef 9
1105 AZ Amsterdam
the Netherlands

tel (+31) 20-5666592
fax (+31) 20-6918626

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