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Creating a graph — NetworkX 1.7 documentation. Start here to begin working with NetworkX.

Creating a graph — NetworkX 1.7 documentation

Create an empty graph with no nodes and no edges. >>> import networkx as nx>>> G=nx.Graph() By definition, a Graph is a collection of nodes (vertices) along with identified pairs of nodes (called edges, links, etc). In NetworkX, nodes can be any hashable object e.g. a text string, an image, an XML object, another Graph, a customized node object, etc.

(Note: Python’s None object should not be used as a node as it determines whether optional function arguments have been assigned in many functions.) Networks, Crowds, and Markets: A Book by David Easley and Jon Kleinberg. In recent years there has been a growing public fascination with the complex "connectedness" of modern society.

Networks, Crowds, and Markets: A Book by David Easley and Jon Kleinberg

This connectedness is found in many incarnations: in the rapid growth of the Internet and the Web, in the ease with which global communication now takes place, and in the ability of news and information as well as epidemics and financial crises to spread around the world with surprising speed and intensity. These are phenomena that involve networks, incentives, and the aggregate behavior of groups of people; they are based on the links that connect us and the ways in which each of our decisions can have subtle consequences for the outcomes of everyone else. Networks, Crowds, and Markets combines different scientific perspectives in its approach to understanding networks and behavior.

Several dots on a map « …and then the world. 2010 is already looking like it’ll be fairly busy, not least because nearly a quarter of it is gone already.

several dots on a map « …and then the world

Over the next twelve months, I should finish my thesis, while other projects are also being developed and carried out: I’m tutoring in a first-year unit this semester, and am currently writing up new work on the French political blog research, first outlined at IR10 last year, for both my thesis and a conference presentation. That presentation will be in June, at the International Communication Association conference in Singapore, as a paper co-authored with Lars Kirchhoff and Thomas Nicolai from Sociomantic Labs in Germany. Where my IR10 presentation looked at the text content of blog posts, this paper will be covering the links being made, in their various guises.

Using Netvizz & Gephi to Analyze a Facebook Network « persuasion. This post was originally featured on published on May 6th, 2010.

Using Netvizz & Gephi to Analyze a Facebook Network « persuasion

Since the website will be relaunched and the post removed, I have relocated the tutorial to my personal page so that the Gephi community can continue to benefit from it. If a picture is worth a thousand words, then a graph must be worth a thousand spreadsheet rows, right? A Facebook network rendered in Gephi. Social Network Analysis. Nodus Labs. Introduction aux graphes avec Neo4j et Gephi. Humanities software, visualization and analysis.

Gephi, an open source graph visualization and manipulation software.