Re: GraphViz and SKOS...

On 15 February 2011 14:01, Christophe Dupriez <dupriez@destin.be> wrote:
> Hi!
>
> I always resisted graphing thesauri relations because I thought relations
> can be presented through adequate layout and typography.
> I found by accident GraphViz ( http://www.graphviz.org ), an open source
> software existing since 1996 doing exactly what a non-graphic designer
> dreams:
> draw a good schema from logical relations...
>
> Many examples are in the documentation:
> http://www.graphviz.org/pdf/dotguide.pdf
>
> May be some of you know a better or more recent tool? Please let me know!
> The interesting thing to do now is to translate automatically and SKOS file
> (or extract) into a .DOT file...
>    Anyone has done experiments in that direction? Can we learn about it?

GraphViz is pretty cool. I made an RDF Viz tool with it some while ago
(http://lists.w3.org/Archives/Public/www-rdf-interest/2000Mar/0095.html)
and Art Barstow later integrated GraphViz into W3C's RDF Validator.

If you notice the graphing options in http://www.w3.org/RDF/Validator/
... that's graphviz.

(where it says "triples and/or graph", it's the "graph" option).

Although SKOS is expressed in RDF, and therefore the general RDF
visualizations will also display SKOS, it might be that a custom
SKOS-centric mapping to graphviz works better. Automatic layout only
works for small examples, ... but enough to usefully illustrate a data
structure.

For similar facilities in pure Javascript,
http://www.graphdracula.net/ is also worth a look.

One scenario is to use GraphViz as a 'first pass' at layout, then
import (via SVG?) into graphical desktop tools like OMNIGraffle, to
make a more elegant final version...

If you make something interesting, do share it here :)

cheers,

Dan

> My opinion is that drawing rapidly and effortlessly schemas based on EXTRACT
> from a thesaurus is very valuable for discussions between validators.
> I would like to integrate .DOT generation into ASKOSI.org.
>
> Have a very nice day!
>
> Christophe
>
> P.S. I invite you to test the following (written in .DOT graph description
> language) using some of the available Web services (for instance:
> http://graphviz-dev.appspot.com/).
> It is an example of a thesaurus extract under revision:
>
> digraph g{
> rankdir=LR;
> concentrate=true;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ANALGESICS;
> ANALGESICS->ACETANILIDE;
> ANALGESICS->CARFENTANIL;
> CARFENTANIL->CARFENTANIL_CITRATE;
> ACETANILIDE->P_ACETANISIDINE;
> ANALGESICS->ACETYLMORPHINE;
> ACETYLMORPHINE->_3_ACETYLMORPHINE;
> ACETYLMORPHINE->_6_ACETYLMORPHINE;
> ANALGESICS->AMINOPHENAZONE;
> AMINOPHENAZONE->AMPYRONE;
> ANALGESICS->METAMIZOLE_SODIUM;
> ANALGESICS->NARCOTIC_ANALGESICS;
> NARCOTIC_ANALGESICS->CIRAMADOL;
> NARCOTIC_ANALGESICS->TRAMADOL;
> TRAMADOL->TRAMADOL_HYDROCHLORIDE;
> ANALGESICS->NARCOTICS;
> NARCOTICS->ACETYLMORPHINE;
> NARCOTICS->CARFENTANIL;
> NARCOTICS->EMBUTRAMIDE;
> ANALGESICS->NON_NARCOTIC_ANALGESICS;
> NON_NARCOTIC_ANALGESICS->PROPYPHENAZONE;
> ANALGESICS->NORPIPANONE;
> ANALGESICS->XYLAZINE;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ANALGESICS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ANTICONVULSANTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ANTIEMETICS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ANTITUSSIVES;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->EMETICS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->NOOTROPICS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->WEIGHT_LOSS_AGENTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->CENTRAL_NERVOUS_SYSTEM_DEPRESSANTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->CENTRAL_NERVOUS_SYSTEM_STIMULANTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->CENTRAL_MUSCLE_RELAXANTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->NARCOTIC_ANTAGONISTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->NEUROPROTECTIVE_AGENTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ANESTHESIA_ADJUVANTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ALCOHOL_DETERRENTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->ANTI_DYSKINESIA_AGENTS;
> CENTRAL_NERVOUS_SYSTEM_AGENTS->PSYCHOTROPIC_DRUGS;
> }
>
>
>

Received on Tuesday, 15 February 2011 13:40:33 UTC