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SocNetV 1.5 Released

Dimitris

A new version of SocNetV has just been released! Version 1.5 brings standardization, many bug fixes, and exciting new features. Packages for Windows, Mac OS X, and Linux are available from the Downloads page.

Notable New Features

  • Prominence Scores on Valued Networks:

    • A new SSSP-solver algorithm (Dijkstra) enables prominence indices on weighted networks.
    • SocNetV asks whether to consider or invert weights, depending on their meaning (e.g., cost vs. votes).

  • Standardized Centrality and Prestige Scores:

    • Scores are now standardized (0.0 to 1.0) where applicable.
    • If no standardized formula exists, SocNetV normalizes by dividing the original score by the sum of all scores.

  • Prominence Layouts Relative to Highest Score:

    • Visualization layouts (circular, level, and nodal size) are now based on the highest score in the network rather than theoretical maximums.

  • Skip Isolates:

    • Option to omit isolates when computing prominence indices.

  • Graph Connectedness:

    • SocNetV reports if the network is connected or has isolates and suggests fixes.

  • CC Drops Isolates by Default:

    • Automatically drops isolate nodes to compute CC scores, avoiding user interruptions.

  • New Datasets:

    • Stephenson and Zelen (1989): Network of 40 AIDS patients.
    • Stephenson and Zelen (1989): IC test dataset (5 actors).
    • Wasserman and Faust: Star, circle, and line graphs (7 actors).

Bug Fixes

The following bugs have been resolved in this release:

  • #1358678: Fix GDC calculation in weighted networks.
  • #379558: Force-directed algorithms produce poor layouts.
  • #1365028: Methods isOutLinked & setOutLinked do not consider relations.
  • #1365504: centralityInformation() should symmetrize the adjacency matrix.
  • #1366625: Clicking on an edge does not select the correct edge.
  • #1369171: Group IC calculation yields incorrect results.
  • #1371208: Incorrect power centrality scores.
  • #1364955: vertices() should report only enabled vertices.
  • #1369336: Pagerank prestige reports incorrect scores.
  • #1370528: SocNetV cannot build on non-x86 architectures.
  • #1364320: Remove SRS PDF and fix spelling errors in code.
  • #1364361: SocNetV does not remember the last directory used by the user.
  • #1378346: Cannot change size and value of a node.

Enjoy the new features and improvements! If you spot any bugs, please report them here. Have fun!