Re: Semantic Bleachers: was Re: Afghanistan War Diary as topic map in Maiana

Hi Richard,

[...]
> I think supporting updating would be a challenge.  Is there a facility
> for updating Wikipedia pages from the DBpedia environment using SPARQL
> updates?  If so, we could piggy-back onto that.

I am not aware of such a project. The Ueberblic platform [1] allows
editing Wikipedia facts but I guess it's done via the Wikipedia API.

> There is also the question of the relative expressivity of SPARQL vs. 
> TMQL.  What query possibilities would be lost by having to virtualise 
> TMQL queries as SPARQL?

I haven't done a comparison of TMQL vs. SPARQL but Lars Marius blogged
about the relationships of tolog and SPARQL [2]. You'll still need
some RDF/Topic Maps mapping, though.

[...]
> In general, I would think this approach is more realistic for delivering
> RDF subgraphs as TM fragments than for trying to convert a complete RDF
> resource like DBpedia to TM syntax.  IOW, it should be a dynamic 
> process.  Bear in mind that the RDF itself may be generated from a 
> further (dynamically changing) source, such as database content 
> extracted by a Virtuoso Sponger Cartridge.

ACK.

I think nobody wants to convert a DBpedia dump into a topic map and
that's it. DBpedia changes, the dumps are not up to date etc.

>>> I am trying to understand what you think others could contribute to the
>>> DBpedia topic maps project? Assuming it became a public project.
>>
>>It comes down to a simple RDF to Topic Maps mapping. We take the
>>DBpedia ontology and decide how we'd translate it to Topic Maps.

> Isn't that what Mappify already does? [1]

Yes, it does. But it uses a limited mapping. It translates only
several names, the abstracts and a few associations to Topic Maps. I
always wondered why nobody complained about the poor mapping. :) I am
unsure if I published the mapping somewhere. But I can do that. The
mappings are written in CRTM [3].

[1] <http://uberblic.org/>
[2] <http://www.garshol.priv.no/blog/20.html>
[3] <http://www.semagia.com/tr/crtm/>

Best regards,
Lars
-- 
Semagia 
<http://www.semagia.com>

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