Search found 124 matches
- 09 Oct 2014 18:51
- Forum: Visualization on the Web
- Topic: Large Steam network visualization with Google Maps + Gephi
- Replies: 16
- Views: 56722
Re: Large Steam network visualization with Google Maps + Gep
Small status update. I'm still working towards making the plugin. Earlier I've had a private website which has allowed me to upload Gephi GEXF files which the backend then renders according to some parameters. I've now worked on making the backend more of a "module". Now there is a very primitive we...
- 30 Sep 2014 16:51
- Forum: Visualization on the Web
- Topic: Large Steam network visualization with Google Maps + Gephi
- Replies: 16
- Views: 56722
Re: Large Steam network visualization with Google Maps + Gep
I just wanted to post that I've begun working on this for a few days now. I haven't touched the code in a long time so it takes some time to remember what all the different versions and revisions actually do. I'm planning to update things that are relatively easy for me to release first and then hop...
- 03 Sep 2014 10:22
- Forum: Visualization on the Web
- Topic: Large Steam network visualization with Google Maps + Gephi
- Replies: 16
- Views: 56722
Re: Large Steam network visualization with Google Maps + Gep
Hello alexkuk. 1. Tiles are generated automatically for each zoom level. I created a Java plugin for Gephi Toolkit that loads the network and saves each tile as a PNG image. The code loops through the whole network each tile at a time and renders the nodes. I also have custom Perl renderer but I thi...
- 19 Feb 2014 23:30
- Forum: Statistics, Clustering & Data Lab
- Topic: Modularity randomize option
- Replies: 4
- Views: 5237
Re: Modularity randomize option
Hi tamara. I don't know the exact details of modularity implementation in Gephi. However the randomness comes from the fact that each run of the algorithm tries to find good modularity value (Q-value) using approximation. The approximation algorithm works by starting from one node and walking from t...
- 16 Jan 2014 16:39
- Forum:
- Topic: Automation of graph creation
- Replies: 1
- Views: 455
Re: Automation of graph creation
Hi jcharles. Did you see the https://wiki.gephi.org/index.php/Toolkit_-_Headless_Gephi example? If Java is not familiar to you it may seem somewhat complex. However this is the easiest way you can programmatically achieve what you are looking for. Install Netbeans and try to get the examples working...
- 09 Jan 2014 15:05
- Forum: How-To and Troubleshooting
- Topic: another CSV spreadsheet/memory issue.
- Replies: 2
- Views: 1841
Re: another CSV spreadsheet/memory issue.
Hello lucsampaio. I've been working with similar large graphs and memory consumption is a bit of a problem. See posts at http://forum.gephi.org/viewtopic.php?p=7941#p7941 and https://forum.gephi.org/viewtopic.php?p=7826#p7826 Have you tried with smaller amount of edges? Ie. try to load only 1M edges...
- 03 Jan 2014 10:33
- Forum: How-To and Troubleshooting
- Topic: how to format csv file?
- Replies: 2
- Views: 1915
Re: how to format csv file?
Hi Susan. I recommend you take a look at VNA file format or GDF file format. Both are quite similar to CSV but with slightly different notation. Gephi supports these formats and I think these are intuitive to use. VNA: https://gephi.org/users/supported-graph-formats/netdraw-vna-format/ GDF: https://...
- 15 Nov 2013 11:54
- Forum: Statistics, Clustering & Data Lab
- Topic: Modularity Score
- Replies: 6
- Views: 28886
Re: Modularity Score
Hi ticoalu. In practice higher modularity is better. The higher the value the better quality the partition is. Here's a visual example how the modularity affects the network partition: http://forum.gephi.org/viewtopic.php?t=1585. Also read Sebastien's (admin) reply to issue in the thread. However th...
- 07 Nov 2013 08:16
- Forum: How-To and Troubleshooting
- Topic: less than 100% preview saving
- Replies: 5
- Views: 19700
Re: less than 100% preview saving
Hi vieirae. You could use filters to remove unwanted nodes. For example compute Eigenvector Centrality statistic. Then filter out the nodes that are below some threshold using Filters > Attributes > Range > Eigenvector Centrality filter. Also notice that you can go to Data Laboratory tab. Then selec...
- 31 Oct 2013 15:29
- Forum: Data Import / Export
- Topic: How to import big data from mysql database
- Replies: 1
- Views: 2371
Re: How to import big data from mysql database
Hi wangyh. You can import the data in let's say 10000 node batches. You create a for-loop which imports only 10000 nodes at one time. So your SQL query + for loop becomes: n = 1; do { sql = SELECT nodes.id AS id, nodes.label AS label, nodes.url FROM nodes WHERE id < n * 10000; ...insert nodes into G...