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Mapping Corporate
Networks - Intro
A two-part recipe for
downloading company
ownership data from
OpenCorporatesusing
OpenRefine, and then
visualising it with...
http://opencorporates.com/companies/gb/04366849/network.json?depth=2
How to grab the
data using
OpenRefine
Visit openrefine.org to download the application
Where’s the data?

Add
/network.json?depth=2
to the end of the web address
URL of the form:

http://opencorporates.com/companies/
JURISDICTION/COMPANY_ID/network.json?de
pth=2
What data block makes a row?
Create project

Toggle selection and preview
Nicely tabulated data
What Gephi Expects…
Child

Parent
Parent ->Source
Child ->Target
(You may find the network analyses work better
if you use the parent as the Target and the
...
How tovisualise
the data
usingGephi
Visitgephi.org to download the application
Getting Started with Gephi
Import as Edges table
Colour/S
ize

View

Stats/
Filters

Layout
Label tools
“Spacing”
Label display
selector

Turn labels on

Label size
A matter of degree…

Degree 2
In-degree 2
Out-degree 0

Degree 3
Degree 3
In-degree 0
In-degree 1
Out-degree 3 Out-degree ...
Size by degree…
Calculate in-degree
and out-degree

Set node size

The color wheel/palette is
used to colourthe nodes.
Label Sizing
Tweaking the layout
“Expand” the layout
(stretch it in two
dimensions)

“Adjust” the labels
so that they don’t
overlap - m...
Network Stats

HITS – Authority and Hub values:
authoritative nodes are pointed to,
hub nodes point to others

Measure the...
Use the tools in concert…
Colour based on Authority (HITS statistic)

Label adjust tweaks the layout
so we can read the la...
SchoolOfData.org
School Of Data - mapping opencorporates networks using openrefine and Gephi
School Of Data - mapping opencorporates networks using openrefine and Gephi
School Of Data - mapping opencorporates networks using openrefine and Gephi
School Of Data - mapping opencorporates networks using openrefine and Gephi
School Of Data - mapping opencorporates networks using openrefine and Gephi
School Of Data - mapping opencorporates networks using openrefine and Gephi
School Of Data - mapping opencorporates networks using openrefine and Gephi
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School Of Data - mapping opencorporates networks using openrefine and Gephi

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School Of Data - mapping opencorporates networks using openrefine and Gephi

  1. 1. Mapping Corporate Networks - Intro
  2. 2. A two-part recipe for downloading company ownership data from OpenCorporatesusing OpenRefine, and then visualising it with Gephi
  3. 3. http://opencorporates.com/companies/gb/04366849/network.json?depth=2
  4. 4. How to grab the data using OpenRefine Visit openrefine.org to download the application
  5. 5. Where’s the data? Add /network.json?depth=2 to the end of the web address
  6. 6. URL of the form: http://opencorporates.com/companies/ JURISDICTION/COMPANY_ID/network.json?de pth=2
  7. 7. What data block makes a row?
  8. 8. Create project Toggle selection and preview
  9. 9. Nicely tabulated data
  10. 10. What Gephi Expects…
  11. 11. Child Parent
  12. 12. Parent ->Source Child ->Target (You may find the network analyses work better if you use the parent as the Target and the child as the Source…) What Gephi Expects…
  13. 13. How tovisualise the data usingGephi Visitgephi.org to download the application
  14. 14. Getting Started with Gephi
  15. 15. Import as Edges table
  16. 16. Colour/S ize View Stats/ Filters Layout Label tools
  17. 17. “Spacing”
  18. 18. Label display selector Turn labels on Label size
  19. 19. A matter of degree… Degree 2 In-degree 2 Out-degree 0 Degree 3 Degree 3 In-degree 0 In-degree 1 Out-degree 3 Out-degree 2
  20. 20. Size by degree… Calculate in-degree and out-degree Set node size The color wheel/palette is used to colourthe nodes.
  21. 21. Label Sizing
  22. 22. Tweaking the layout “Expand” the layout (stretch it in two dimensions) “Adjust” the labels so that they don’t overlap - may change relative position of nodes
  23. 23. Network Stats HITS – Authority and Hub values: authoritative nodes are pointed to, hub nodes point to others Measure the ‘influence’ of a node in the network
  24. 24. Use the tools in concert… Colour based on Authority (HITS statistic) Label adjust tweaks the layout so we can read the labels Fine tune label sizing using text-size slider
  25. 25. SchoolOfData.org

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  • ErikaMarconato

    Nov. 19, 2013
  • shivswami

    Dec. 23, 2013
  • dheerudua

    Mar. 31, 2015
  • JorgeCarlosSocolowsk

    Oct. 11, 2016

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