For opensource graph visualization, you might check out:
http://gephi.org/
FWIW, Josh and I have been building up a tool we're internally calling
"EventFlow" that builds up temporal graphs from standard data. Here's
a couple videos that show the tool as we're describing it to our
collaborators in the UK:
http://redfish.com/SFComplex/projects/UKNHSShropshire.html
The user can input multiple spreadsheets or tables of two types:
entities and events. Entities you can think of as nouns in a system
and might be what actually flows through the system. In the case of a
healthcare the entities might be patients, doctors, or medications.
The events bind the nouns together with a start and end timestamp. In
healthcare, we are using insurance billing data that has a particular
patient mapped to a doctor, clinic, service and medication. We're also
using performance data for the events.
In education, the entities would be students, teachers, classrooms and
events would be the transcripts binding a student to a teacher,
classroom, subject and performance grade.
EventFlow is not yet in a shrink-wrapped form but maybe after a couple
more projects with it....
-S
_____________________________________________________________
[email protected]
(m) 505-216-6226 (o) 505-995-0206
sfcomplex.org | simtable.com | ambientpixel.com | redfish.com
On Jul 12, 2010, at 7:29 AM, Tom Johnson wrote:
Any FRIAM-ers have insights to this interesting query?
-tom johnson
---------- Forwarded message ----------
From: Dan T Keating <[email protected]>
Date: Mon, Jul 12, 2010 at 6:41 AM
Subject: Re: [NICAR-L] How do you auto-create a network diagram?
To: [email protected]
The data structure described here looks like Semantic Web, an
attempt to define relationships that will allow creation of
automatic relationships and links that would not otherwise be
apparent. We know in math that if a = b and b > c then a > c, but
seeing that kind of relationship across data at different websites
is not easy. Once data is in the Resource Descriptor Formt (RDF)
format
Object ==> relationship ==> Fact
like
Bill ==> lives on ==> Main St
and
Main St ==> is in ==> Neverland
then tools can start to find patterns in the data. There's a db
query languary for it SPARQL.
I had read some on Semantic Web a couple years ago and seeing the
data in this pattern made me wonder if there are more useful tools
for digesting it. But zipping around the (old fashioned, non-
semantic) web has not revealed much more than theoretical
discussions. Maybe someone has put out a good tool for representing
data prepared in this format, but I'm not seeing it right now.
The most comprensible links I'm seeing right now are from Joshua
Tauberer, the guy behind govtrack.us. His blogs on the topic are at
http://razor.occams.info/blog/category/semantic-web/
_________________________________
Dan Keating
Graphics Editor/Data, The Washington Post
(202) 334-5047, [email protected]
"Skelton, Chad (Vancouver Sun)" <[email protected]>
07/09/2010 06:29 PM
Please respond to
Discussion Forum <[email protected]>
To
[email protected]
cc
Subject
[NICAR-L] How do you auto-create a network diagram?
Hi everyone,
So a colleague of mine has some data showing the inter-locking
relationships between various people and companies. The data is set
up in a spreadsheet kind of like this
Name Relationship To
John Smith Works For Tim Jones
Tim Jones Donated Money to ABC Inc.
ABC Inc. Employs John
Smith
ABC Inc. Hired
John Smith
She'll looking for a way to map all these relationships to try to
get a sense of how these spheres of influence overlap. I know I've
seen network diagrams like this before -- different points with
lines between them, with text along the lines showing the
relationship between the two points. I even remember seeing them in
a course I took that dealt with RDFa syntax. I'm assuming there must
be tools out there that can create simple diagrams from data kind of
like my colleague's.
Any tips on what tools we could use to make this work? Those that
are free and/or web based would be best. :) Thanks!
Chad Skelton, Reporter
The Vancouver Sun
[email protected]
Phone: 604-605-2892
Fax: 604-605-2323
Check out my blogs:
vancouversun.com/parenting/
vancouversun.com/papertrail/
Follow me at twitter.com/chadskelton and twitter.com/curiousdad
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==========================================
J. T. Johnson
Institute for Analytic Journalism -- Santa Fe, NM USA
www.analyticjournalism.com
505.577.6482(c) 505.473.9646(h)
http://www.jtjohnson.com [email protected]
"Be Your Own Publisher"
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