# Overview

JUNG — the Java Universal Network/Graph Framework--is a software library that provides a common and extendible language for the modeling, analysis, and visualization of data that can be represented as a graph or network. It is written in Java, which allows JUNG-based applications to make use of the extensive built-in capabilities of the Java API, as well as those of other existing third-party Java libraries.

The JUNG architecture is designed to support a variety of representations of entities and their relations, such as directed and undirected graphs, multi-modal graphs, graphs with parallel edges, and hypergraphs. It provides a mechanism for annotating graphs, entities, and relations with metadata. This facilitates the creation of analytic tools for complex data sets that can examine the relations between entities as well as the metadata attached to each entity and relation.

The current distribution of JUNG includes implementations of a number of algorithms from graph theory, data mining, and social network analysis, such as routines for clustering, decomposition, optimization, random graph generation, statistical analysis, and calculation of network distances, flows, and importance measures (centrality, PageRank, HITS, etc.).

JUNG also provides a visualization framework that makes it easy to construct tools for the interactive exploration of network data. Users can use one of the layout algorithms provided, or use the framework to create their own custom layouts. In addition, filtering mechanisms are provided which allow users to focus their attention, or their algorithms, on specific portions of the graph.

As an open-source library, JUNG provides a common framework for graph/network analysis and visualization. We hope that JUNG will make it easier for those who work with relational data to make use of one anothers' development efforts, and thus avoid continually re-inventing the wheel.

— The JUNG Framework Development Team

# Announcements

26 February 2005: JUNG 1.5.4 released
28 January 2005: JUNG 1.5.3 released; PluggableRendererDemo slightly updated to show new PR capabilities.
16 December 2004: JUNG 1.5.2 released
9 December 2004: JUNG 1.5.1 relased, and Developer's FAQ updated with some new questions and some new answers to existing questions.
9 November 2004: JUNG 1.5 released (also see the new addition to the sample applets.)
28 June 2004: Developer's FAQ added to address most common support and development issues.
24 June 2004: "Tutorials" renamed "Presentations"; some new presentations (talks and posters) added.
21 June 2004: JUNG 1.4.3 released
15 June 2004: Old versions of the documentation have been removed from this site. See the documentation page for more information.
30 May 2004: JUNG 1.4.2 released
11 May 2004: JUNG 1.4.1 released
7 May 2004: JUNG 1.4.0 released
19 January 2004: JUNG 1.3.0 released
9 January 2004: JUNG 1.2.0 released
26 November 2003: JUNG 1.1.1 released
05 November 2003: JUNG 1.1.0 released
22 August 2003: JUNG Manual 1.0 released
1 August 2003: JUNG 1.0.0 released