Analysis and visualization of very large networks     

Pajek
Recommended on FDM
Ver. 32 bit 64 bit
May 28,
2022
5.15
Web Start
Pajek Web Start  PajekXXL Web Start
Install Shield
Install-Zip
Portable
Web Start
Pajek Web Start PajekXXL Web Start Pajek3XL Web Start
Install Shield
Install-Zip
Portable
2018 Pajek Book Edition 3
Pajek mailing list        Datasets
Richards Software Award 2013
Greek Chinese Russiane Spanish Persian Japan French Great Britain Portuguese German lithuanian Italia Poland Slovene
Pajek Manual Exploratory Social Network Analysis with Pajek: Revised and Expanded Edition for Software Update. Third Edition. Exploratory Social Network Analysis with Pajek - in Japanese. Exploratory Social Network Analysis with Pajek - in Chinese.

What is new in Pajek 5.15b?

May 28, 22 Pajek 5.15b: Bug when computing E-I index which appeared in version 5.15 fixed (Operations / Network + Partition / Info / E-I Index) .
May 13, 22 Pajek 5.15a: Bug when computing Manhattan distances (Network based) fixed - results were square-rooted by mistake.
May 5, 22 Pajek 5.15: Some minor changes in GUI to fit better to Windows 11 (e.g. Options / Menu without Icons).
May 1, 22 Fast label propagation algorithm can now be applied to signed networks as well.
Apr 26, 22 Optimizing any partition with fast label propagation algorithm added (Network / Create Partition / Label Propagation / Fast / Optimize Partition). User can provide any partition obtained by some other method, or an almost null partition with only few vertices assigned to specific clusters.
Apr 25, 22 Fast Label Propagation algorithm for searching for clusters in networks implemeted (Network / Create Partition / Label Propagation / Fast / Random Start).
Apr 15, 22 Standard label propagation algorithm can now be applied to signed networks as well.
Apr 11, 22 Optimizing any partition with label propagation algorithm added (Network / Create Partition / Label Propagation / Standard / Optimize Partition). User can provide any partition obtained by some other method, or an almost null partition with only few vertices assigned to specific clusters.
Apr 9, 22 Standard Label Propagation algorithm for searching for clusters in networks implemeted (Network / Create Partition / Label Propagation / Standard / Random Start).
Apr 7, 22 Problem with changing display from single to dual screen fixed by possibility to move all child windows to the upper left corner with menu command: Info / Child Windows / Move all Child Windows to the Upper-Left Corner.
Apr 3, 22 Change in Cluster / Make Partition: classes for vertices in Cluster are now C[i]=i (instead of C[i]=1).
Jan 19, 22 Options / Colors / Themes added.
Jan 14, 22 Copying picture stored in Pajek Draw window to Clipboard implemented: Export / 2D / Copy to Clipboard (Ctrl+C).
Jan 13, 22 Type of network (multirelational, signed, 2-mode) now reported in Network / Info / General.
Dec 15, 21 Some improvements in Kamada-Kawai optimization.
Dec 10, 21 When reading input files additional messages to help user to find eventual errors are now provided.
Dec 9, 21 When reading GEDCOM files, type of network (Ore-graph, p-graph or bipartite p-graph) is added to the label of the Network object generated.
Sep 1, 21 Pajek 5.14: ...Complete history since November 15, 1996...

Some hints on Pajek


  Start with the latest version of Pajek

       Changes in main menu structure from Pajek book edition (2.05) to the latest version of Pajek
       Start with Pajek, Test Datasets, More Datasets
       Course on Social Network Analysis with Pajek, supporting programs

  Running Pajek on MAC and Linux

      Running Pajek on MAC, Addition1, Addition2
      Running Pajek on Linux
      Running Pajek on Linux64

  Info on Pajek / Introduction to Pajek in different languages

       English: by Andrej Mrvar and Vladimir Batagelj
       Russian: Videos (by Daria Matseva)
       Italian: by Fernanda Strozzi
       Persian: by Aliakbar Akbaritabar
       Greek (by Dimitrios Rousis): Presentation, Manual
       German:
             1. Videos (by Michael Henninger): 1, 2, 3
             2. by Vladimir Batagelj and Andrej Mrvar
       French:
             1. by Marion Maisonobe
             2. by Pierre Mercklé
       Spanish:
             1. by Universidad Nacional del Sur (Argentina)
             2. by Alejandro A. Ruiz León and Nina Ines Jung
       Portuguese:
             1. Videos (by Rafael Barbastefano): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
             2. by Ivette Luna
             3. by Andre M. Sarmento
       Chinese:
             1. Videos: 1.1, 1.2, 2.1, 2.2, 3, 4.1, 4.2, 5.1, 5.2, 6.1, 6.2, 6.3.
             2. by Feng Lin
       Japanese:
             1. by Japan Advanced Institute of Science and Technology
             2. by Yuki Yasuda and Takahisa Wakabayashi
       Polish:
             1. by Dominik Kopaczek
             2. by Dominik Batorski
             3. laboratorium-pajek-1
             4. laboratorium-pajek-2
       Lithuanian: by Gintarė Tautkevičiėnė
       Slovene:
             Pajek manual (by Andrej Mrvar)
             Course on Social Network Analysis with Pajek (by Andrej Mrvar)
             Pajek - 20 years (by Andrej Mrvar)

  PajekXXL and Pajek3XL: About, Example 1, Example 2

  Community Detection in Pajek and PajekXXL

      Detecting communities in Pajek and Pajek XXL
      Visualizing communities in Pajek
      Comparing Louvain method and VOS Clustering
      Example of visualizing communities in collaboration network (provided by James Moody)

  Signed Networks in Pajek

      Papers, visualizations, animations, instructions...

  Analysis of Genealogies with Pajek

      Papers, presentations, fragments, macros...

  Analysis of Citation Networks

      Main path analysis (Wikipedia)
      How to use Pajek to find main path (Video)

  Using Unicode, LOG and MCR files

       Using Unicode in Pajek
       Macros and session (LOG) files

  SVG, EPS and VOS Visualizations

       Exporting Visualizations to VOSviewer
       Example of using Tooltips in SVG export
       Bezier curves as default shapes of lines in Pajek
       Animations of the Correlates of War data
       Some visualizations with symbols
       Drawing edges and arcs transparently in Pajek
       Drawing vertices transparently in Pajek
       Solving the problem of unwanted visibility of lines behind transparent vertices in Pajek
       house, man, and woman as additional shapes

  Supporting programs

       PajekToSvgAnim (by Darko Brvar): Zip (version 1.10.9.7, December 18, 2018), TestData, Manual
       txt2Pajek (by Juergen Pfeffer): Create Pajek files from text files (version 3)
       R functions (by Jonathan H. Morgan): Read and write Pajek files without calling another networks package
       NeuroData's Graph Database Online converter among several network formats (including Pajek)
       Web Crawlers with export to Pajek: SocSciBot, UrlNet
       socilab (by Craig Tutterow): Visualize your LinkedIn Network and save it as Pajek NET file
       Visual History for Chrome (by Samer Kurdi): Chrome extension that presents URLs visually,
           as an interactive chart and saves it as Pajek NET file. Download

Pajek
Recommended on FDM
       Wiley

  Questions regarding Pajek

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