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Gephi was developed to be an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs.
Here are some key features of "Gephi":
Real-time visualization:
· Profit from the fastest graph visualization engine to speed-up understanding and pattern discovery in large graphs. Powered by its ad-hoc OpenGL engine, Gephi is pushing the envelope on how interactive and efficient network exploration can be.
· Networks up to 50K nodes and 500K edges
· Iterate through visualization using dynamic filtering
· Rich tools for meaningful graph manipulation
Layout:
· Layout algorithms give the shape to the graph. Gephi provides state-of-the-art algorithms layout algorithms, both for efficiency and quality. The Layout palette allows user to change layout settings while running, and therefore dramatically increase user feedback and experience.
· Force-based algorithms
· Multi-level algorithms (graph coarsening)
Metrics:
· The statistics and metrics framework offer the most common metrics for social network analysis (SNA) and scale-free networks.
· Betweenness, Closeness, Diameter, Clustering Coefficient, Average shortest path, PageRank, HITS
· Community detection (Modularity)
· Random generators
Dynamic Network Analysis:
· Gephi is the ideal platform for leading innovation about dynamic network analysis (DNA). Dynamic structures, such as social networks can be filtered with the timeline component.
· Import temporal graph with the GEXF file format
· Graph streaming ready
Create cartography:
· Use ranking or partition data t o make meaningful the network representation. Customize colors, size or labels to bring sense to the network representation. The vectorial preview module lets you put the final touch and care about aesthetics before explorting in SVG or PDF.
· Customizable SVG export
· Save presets
Clustering and hierarchical graphs:
· Explore multi-level graphs with Gephi by facilitating exploration and edition of large, hierarchically structured graphs, e.g., social communities, biochemical pathways or network traffic graphs. Aggregate networks using data attributes or use built-in clustering algorithm.
· Expand and contract subgraphs in Meta node.
· Link and attribute clustering
Dynamic filtering:
· Filter the network to select nodes and/or edges based on the network structure or data. Use interactive user interface to filter the network in real-time.
· Create complex filte r query without scripting
· Build new networks from the filtering result
· Save your favorite queries
User-centric:
· Besides a simple and tested user-interface, Gephi lets users organize their work in workspaces and save their session .gephi project files.
· Save/Load project files
· Use the Data Table view to browse and edit data
Modular:
· Gephi 0.7 architecture is modular and therefore allows developers to add and extend functionalities with ease. New features like Metrics, Layout, Filters, Data sources and more can be easily packaged in plugins and shared.
· Very little work to add new connectors or external data source
· Built on top of Netbeans Platform
· API for extensible features
Requirements:
· Java version 6 and later
· 500 MHz CPU
· 128 MB RAM
· OpenGL 1.2
What's New in This Release: [ read full changelog ]
New features:
· Add Retina Display support to the Mac OS X version
· Data Laboratory's time interval merge strategy now supports custom date format
· Improved parser for dynamic types. Literal strings are now supported.
Bugfixes:
· Filters 'Duplicate' does not work (issue 176)
· Exporting SVG File throws DomException due to invalid stroke-widths (issue 697)
· File name entered is lost when changing folder (issue 463)
· Datalab: can't export all columns (issue 628)
· NullPointerException when import ing from database (issue 691)
· Filter on column created with regex causes crash (issue 663)
· "Long cannot be cast to a String" when either exporting a graph or saving a gephi file (issue 679)
· Mapping of Escape Keyboard Shortcut for "Save changes before closing?" dialog box (issue 686)
· DataLab: filling edge weight column doesn't work when dynamic (issue 619)
· Spreadsheet import of dynamic data: support of "infinity" (issue 631)
· Missing license headers (issue 664)
· Spreadsheet import and self-loop...
Via: Gephi 0.8.2 Beta
