Gephi Marketplace https://marketplace.gephi.org The Official Source for Gephi Plugins and Services (BETA) Fri, 17 Feb 2017 10:04:11 +0000 en-US hourly 1 http://wordpress.org/?v=3.5.2 Polygon Nodes https://marketplace.gephi.org/plugin/polygon-nodes/ https://marketplace.gephi.org/plugin/polygon-nodes/#comments Tue, 09 Jun 2015 06:12:19 +0000 zdeager https://marketplace.gephi.org/?post_type=gephiplugin&p=30143 Polygon shaped nodes Description: Extends default node renderer to support polygon shaped nodes with arbitrary number of sides. Add a column of Integers in the data table named “Polygon”, the value corresponds to the number of sides. The renderer must be enabled in the “Manage Renderers” tab. How to use: 1. In the “Data Laboratory” [...]

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Polygon shaped nodes
Description:
Extends default node renderer to support polygon shaped nodes with arbitrary number of sides. Add a column of Integers in the data table named “Polygon”, the value corresponds to the number of sides. The renderer must be enabled in the “Manage Renderers” tab.

How to use:
1. In the “Data Laboratory” tab, add a column with the title “Polygon” and type “Integer”.
- This number in the Polygon column corresponds to the desired number of sides the node will have in the preview.
- NOTE: A null/invalid value (i.e. leaving the column blank or a value less than 3) will result in the node being rendered as a circle.
2. In the “Preview” tab, make sure “Polygon shaped nodes” is checked in the “Manager renderers” tab.
3. Then in the “Settings” tab make sure “Enable polygon shaped nodes” is checked.
4. When the preview is refreshed the nodes should be displayed as polygons with sides corresponding to the number in the “Polygon” column.

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Lineage https://marketplace.gephi.org/plugin/lineage/ https://marketplace.gephi.org/plugin/lineage/#comments Sat, 30 May 2015 10:39:50 +0000 WouterSpekkink https://marketplace.gephi.org/?post_type=gephiplugin&p=30158 This plugin identifies the ancestors and descendants of a node (identified by the user) in a directed graph (not suitable for undirected graphs). Usage: After installing the plugin, the Lineage option can be found in the statistics menu. The user is asked to submit a node (use the Id, not the Label!) and the plugin [...]

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This plugin identifies the ancestors and descendants of a node (identified by the user) in a directed graph (not suitable for undirected graphs).

Usage: After installing the plugin, the Lineage option can be found in the statistics menu. The user is asked to submit a node (use the Id, not the Label!) and the plugin will find the ancestors and descendants for that node. In the nodes list, a variable “Lineage” is added that indicates for each node whether it is the origin node, an ancestor, a descendant, both ancestor and descendant (it will be marked as a hybrid), or unrelated. Two boolean variables are also added that indicate for each node whether they are ancestor or descendant (they can be both when there are cycles in the graph). Two integers are added to record the distance of ancestors and descendants from the origin. The distances of ancestors are recorded as negative values.

The “Lineage” variable can be used for (for example) partition coloring and filtering.

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Polinode https://marketplace.gephi.org/service/polinode/ https://marketplace.gephi.org/service/polinode/#comments Mon, 18 May 2015 07:08:56 +0000 apitts https://marketplace.gephi.org/?post_type=gephiservice&p=30004 Polinode is a tool for conducting organizational network analysis. It is designed to interface well with Gephi.

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Polinode is a tool for conducting organizational network analysis. It is designed to interface well with Gephi.

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Top Weight Edge Filter https://marketplace.gephi.org/plugin/top-weight-edge-filter/ https://marketplace.gephi.org/plugin/top-weight-edge-filter/#comments Mon, 11 May 2015 13:49:51 +0000 Illyoung Choi https://marketplace.gephi.org/?post_type=gephiplugin&p=29886 Keep top N weighted edges in a graph or per a node. MIT License

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Keep top N weighted edges in a graph or per a node.
MIT License

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Give Color To Edges https://marketplace.gephi.org/plugin/give-color-to-edges/ https://marketplace.gephi.org/plugin/give-color-to-edges/#comments Mon, 11 May 2015 13:49:01 +0000 seinecle https://marketplace.gephi.org/?post_type=gephiplugin&p=29915 Colorizes edges according to an RGB or HEX attribute

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Colorizes edges according to an RGB or HEX attribute

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Clique Percolation https://marketplace.gephi.org/plugin/clique-percolation/ https://marketplace.gephi.org/plugin/clique-percolation/#comments Wed, 22 Apr 2015 19:51:28 +0000 kabab https://marketplace.gephi.org/?post_type=gephiplugin&p=29672 Gephi plugin able to calculate centrality of a social network with different methods and percolation of cliques. Contributors  : Khouloud MOUKRIM <moukrim.khouloud@gmail.com> Mohammed MIDAOUI AYOUB <lakhyos@outlook.com>

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Gephi plugin able to calculate centrality of a social network with different methods and percolation of cliques.

Contributors  :

Khouloud MOUKRIM <moukrim.khouloud@gmail.com>

Mohammed MIDAOUI AYOUB <lakhyos@outlook.com>

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MDS Statistics https://marketplace.gephi.org/plugin/mds-statistics/ https://marketplace.gephi.org/plugin/mds-statistics/#comments Wed, 18 Mar 2015 10:03:08 +0000 WouterSpekkink https://marketplace.gephi.org/?post_type=gephiplugin&p=29607 This plugin performs a Multidimensional Scaling Analysis, using the Stress Minimization algorithm included in the MDSJ library. The MDSJ library was created by Algorithmics Group of the University of Konstanz (see reference below). The MDSJ library was made available under the Creative Commons License “by-nc-sa” 3.0. The license is available at http://creativecommons.org/licenses/by-nc-sa/3.0/. The plugin uses [...]

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This plugin performs a Multidimensional Scaling Analysis, using the Stress Minimization algorithm included in the MDSJ library. The MDSJ library was created by Algorithmics Group of the University of Konstanz (see reference below). The MDSJ library was made available under the Creative Commons License “by-nc-sa” 3.0. The license is available at http://creativecommons.org/licenses/by-nc-sa/3.0/.

The plugin uses path distances between nodes as input for the Multidimensional Scaling analysis, and it assigns geometric coordinates to the nodes in such a way that nodes with shorter path distances are close together and nodes with longer path distances are far apart. The plugin also reports a stress value that indicates the fit of the configuration. The lower the stress, the better the configuration represents that actual path distances between the nodes. A weight matrix is used to determine how much the distance between any pair of nodes contributes to stress (weight[i][j]  = distance[i][j]^exponent). In the default setting, no weighting of the distances occurs (all distances are treated equally). It is also possible to downweigh large distances and upweigh small distances (an exponent of -2 is used). According to the authors of the MDSJ library this is the more common choice.

Optionally, edge weights can be interpreted by the plugin as representing distances / dissimilarities or proximities / similarities. In that case the distances between nodes will be based on the edge weights (which are first normalized to values from 1 to 2). These options will not make sense for all applications, and the plugin will in some cases return missing values.

The plugin produces coordinates on up to 10 dimensions (to be selected by the user) and assigns these to the nodes in the nodes list (see the data laboratory). The coordinates can then be used by the MDS_Layout plugin (needs to be downloaded separately).

The direction of edges/paths is currently ignored. With directed paths the resulting MDS configuration typically has a lot of overlapping nodes.

Reference:
Algorithmics Group. MDSJ: Java Library for Multidimensional Scaling (Version 0.2). Available at http://www.inf.uni-konstanz.de/algo/software/mdsj/. University of Konstanz, 2009.

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MDS Layout https://marketplace.gephi.org/plugin/mds-layout/ https://marketplace.gephi.org/plugin/mds-layout/#comments Sat, 14 Mar 2015 13:27:31 +0000 WouterSpekkink https://marketplace.gephi.org/?post_type=gephiplugin&p=29546 The layout takes the coordinates of a Multidimensional Scaling (MDS) configuration as inputs and uses these coordinates to layout the nodes of a graph. MDS is sometimes used in Social Network Analysis to create layouts that reflect some type of distance between the nodes. This distance can be based on the length of paths between [...]

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The layout takes the coordinates of a Multidimensional Scaling (MDS) configuration as inputs and uses these coordinates to layout the nodes of a graph. MDS is sometimes used in Social Network Analysis to create layouts that reflect some type of distance between the nodes. This distance can be based on the length of paths between the nodes, but it can also be based on (dis)similarities in attributes of nodes.

A separate plugin is available for MDS analysis (MDS Statistics) from the Gephi Marketplace. It is also possible to perform the MDS analysis with external software (e.g. R or SPSS). In the latter case the coordinates of the MDS configuration have to be added to the nodes list manually.

If you have the results of an MDS analysis, add the coordinates as variables to your nodes list. When importing the nodes list, make sure that you import the nodes as ‘doubles.’ Otherwise the layout plugin won’t be able to read the coordinates and use them for the layout.

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Spanning Tree https://marketplace.gephi.org/plugin/spanning-tree/ https://marketplace.gephi.org/plugin/spanning-tree/#comments Sat, 21 Feb 2015 15:01:47 +0000 carlschroedl https://marketplace.gephi.org/?post_type=gephiplugin&p=29405 The plugin finds a minimum spanning tree of a graph using Kruskal’s Algorithm.

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The plugin finds a minimum spanning tree of a graph using Kruskal’s Algorithm.

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Clique Percolation Method https://marketplace.gephi.org/plugin/clique-percolation-method/ https://marketplace.gephi.org/plugin/clique-percolation-method/#comments Sat, 14 Feb 2015 18:10:43 +0000 Mir Saman Tajbakhsh https://marketplace.gephi.org/?post_type=gephiplugin&p=29287 Clique Percolation Method is used to find overlapping communities by means of cliques of size k.

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Clique Percolation Method is used to find overlapping communities by means of cliques of size k.

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