Get Started with Gephi

Tony Hirst@psychemedia

Learning by doing…

Playing with toys…

Gephi.org

(OpenRefine/LODRefine)

https://gephi.org/users/install/

Mac users: install Java(official JRE, not OpenJDK)

Gotchas

All users: bump up the memory

The plan pieces

(subject to change;-)

Play with some datasetsand see what we learnalong the way…;-)

The Anatomy of a Graph…

…and the simplest way in…

Let’s have a chat with some

graphs…

A social network

A corporate network

A Wikipedia influence network

A BBC programme contributors’ networkA social interest network

So…

How MPs follow each other on Twitter

A social network

bit.ly/18j6S2o

Layout

Think “maps”

(representations that let you point to

somewhere and say “I am here, you

are there” in a way that makes sense)

Network Statistics

Treat network stats as questions asked of data

They help you have a conversation with the dataset

as a whole

Conv

ersa

tions

with

dat

a

Centrality measures

betweenness

eigenvector

PageRankCent

ralit

y m

easu

res

Hub &Authority

may tell adifferent story

Co-Director Trawl on #opencorporates

A corporate network

bit.ly/11Q9T7u

< Corporate Structure Maps Presentation >

Common Likes on Facebook

A social interest network

http://is.gd/7cRnvShttp://openrefine.org

Who influences whom in philosophy?

A Wikipedia Influence network

Semantic Web Import plugin

https://gist.github.com/psychemedia/5999271

Institutional representation on In Our Time

A BBC programme contributors’ network

is.gd/ur4MPU