Flavia Marzano: Gephi, an open source graph visualization and manipulation software

Flavia Marzano

Gephi, an open source graph visualization and manipulation software

Gephi is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs.

Runs on Windows, Linux and Mac OS X. Gephi is open-source and free.


Exploratory Data Analysis: intuition-oriented analysis by networks manipulations in real time.

Link Analysis: revealing the underlying structures of associations between objects, in particular in scale-free networks.

Social Network Analysis: easy creation of social data connectors to map community organizations and small-world networks.

Biological Network analysis: representing patterns of biological data.

Poster creation: scientific work promotion with hi-quality printable maps.

Click on Image to Enlarge

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Metrics ready

Centrality: used in sociology to indicate how well a node is connected. Available: degree (power-law), betweenness, closeness.

And more: density, path length, diameter, HITS, modularity, clustering coefficient.

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Ergonomic interface: based on NetBeans UI

High-performance: built-in 3D rendering engine.

Native file formats: GDF (GUESS), GraphML (NodeXL), GML, NET (Pajek), GEXF and more.

Customizable by plugins: layouts, metrics, data sources, manipulation tools, rendering presets and more.

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Event: 28-29 November Paris Open Source Consortium Conference



November 28 – 29, 2012 Orange Labs, Paris-Issy-les-Moulineaux

Download the Sponsorship Brochure

Ten great reasons to attend OW2con'12

Can you afford to miss the experience? Just pick one of the ten great reasons (or even two!):

  1. Update your expertise with state of the art technology and OW2 projects presentations
  2. Show your support to the open source community (your very own long-term personal investment)
  3. Network and catch up with your peers
  4. Participate in the new OW2 Projects Awards
  5. Discover the future of open source cloud computing at the day-long summit on open source cloud computing
  6. Attend the special session on OW2’s quality program SQuAT (Software Quality and Trustworthiness)
  7. Get up to date on the strategic and business opportunities offered by open source
  8. Attend the new session “Big Data”
  9. Enjoy the now legendary OW2 beer party
  10. Learn from or take part in interactive sessions with several technical round tables

And it's free!

Who should attend OW2Con'12?

For this fourth edition, we expect speakers and attendees from all over the world, with a particular focus on North America, Europe, China and Brazil. The OW2 Annual Conference is a gathering place for technology experts, software architects, developers, project managers and decision-makers who have the opportunity to verify the quality of the code base developed within the open source community. Open source strategists, technologists and entrepreneurs are also welcome to attend, share their experiences and network with their peers.

Learn more.

Howard Rheingold: How to manage a research library with Zotero

Knowledge, Software

Infotention-technique-rich — Howard

“Keeping up to date with research and managing an ever-increasing number of journal articles is skill that must be well-honed by academics. Here, Alex Hope sets out how his workflow has developed using Zotero, Dropbox, Goodreader and his iPad.”

Read full post with links.

Phi Beta Iota:  This one person's tested approach with existing tools could be the foundation for creating the World Brain.  Also exciting is the London School of Economic platform that his contribution has been published on, and the idea of Twitter as a replacement for the  Institute of Scientific Information's various citation analytics efforts, all mired back in the Industrial Era.

Testimony: White Paper for DCI John Negoponte on Leveraging OSINT to Enhance CIA/IC Mission Success

Data, Design, Innovation, Knowledge, Software, Sources (Info/Intel)
Robert David Steele
Robert David Steele

ROBERT STEELE: A large company paid me to write this in 2004, ostensibly as a white paper to be delivered to then newly-appointed DNI John Negoponte. In fairness to that company, even if they were honest on this point and not just buying my playbook, the prime contract they won with the Open Source Center (OSC) then being managed by Doug Naquin was designed to fail — OSE has never understood OSINT as HUMINT, and is further handicapped by the CIA's Clandestine Service forbidding them from engaging Subject Matter Experts (SME) outside their narrow online surfing and translation lanes. Together with my white paper faxed to then DCI John Deutch, and my memorandum to Vice President Joe Biden, this remains one of my most useful documents for actually creating a national Open Source Agency.

DOC (43 Pages): White Paper Draft 5.5 dtd 7 Sanitized

Full Text with Graphics Below the Fold

Continue reading “Testimony: White Paper for DCI John Negoponte on Leveraging OSINT to Enhance CIA/IC Mission Success”