Re: Can we lower the LD entry cost please (part 1)?

This is one of the issues I am trying to address with http://t4gm.info.
There the notion of autocomplete filtering for SKOS concepts combined with
content negotiation allows one to have one's cake and eat it too, at least
as far user-friendly URL lookup is concerned; because of the use of
XHTML+RDFa, the retrieved page is both human- and machine-readable. - BPA

Bradley P. Allen
http://bradleypallen.org
+1 310 951 4300


On Sat, Feb 7, 2009 at 7:19 AM, Michael Hausenblas <
michael.hausenblas@deri.org> wrote:

>
>
> FWIF, my 0.02€:
>
> I think Hugh has a point there: lower the barrier for interested people in
> the domain to chip in. Hence, an entry point should be provided, which is
> simple enough to be used by quite everyone.
>
> Experience (in the realm of linked data applications) tells that it is
> quite
> always the case that you start in a 'non-semantic' space. This might be a
> keyword, a melody in your head or a still image on a Web site. So, let me
> try to generalise and rephrase (one of) Hugh's questions (I'm sure he will
> tell me if I've done wrong ;) ...
>
> How can one enter the 'semantic space' (where RDF, etc. Rules) given a
> keyword, a concept, an image, etc.?
>
> Cheers,
>      Michael
>
> --
> Dr. Michael Hausenblas
> DERI - Digital Enterprise Research Institute
> National University of Ireland, Lower Dangan,
> Galway, Ireland, Europe
> Tel. +353 91 495730
> http://sw-app.org/about.html
>
>
> > From: Hugh Glaser <hg@ecs.soton.ac.uk>
> > Date: Sat, 7 Feb 2009 13:23:44 +0000
> > To: Linked Data community <public-lod@w3.org>
> > Subject: Can we lower the LD entry cost please (part 1)?
> > Resent-From: Linked Data community <public-lod@w3.org>
> > Resent-Date: Sat, 07 Feb 2009 13:24:39 +0000
> >
> >
> > My proposal:
> > *We should not permit any site to be a member of the Linked Data cloud if
> it
> > does not provide a simple way of finding URIs from natural language
> > identifiers.*
> >
> > Rationale:
> > One aspect of our Linking Data (not to mention our Linking Open Data)
> world
> > is that we want people to link to our data - that is, I have published
> some
> > stuff about something, with a URI, and I want people to be able to use
> that
> > URI.
> >
> > So my question to you, the publisher, is: "How easy is it for me to find
> the
> > URI your users want?"
> >
> > My experience suggests it is not always very easy.
> > What is required at the minimum, I suggest, is a text search, so that if
> I
> > have a (boring string version of a) name that refers in my mind to
> > something, I can hope to find an (exciting Linked Data) URI of that
> thing.
> > I call this a projection from the Web to the Semantic Web.
> > rdfs:label or equivalent usually provides the other one.
> >
> > At the risk of being seen as critical of the amazing efforts of all my
> > colleagues (if not also myself), this is rarely an easy thing to do.
> >
> > Some recent experiences:
> > OpenCalais: as in my previous message on this list, I tried hard to find
> a
> > URI for Tim, but failed.
> > dbtune: Saw a Twine message about dbtune, trundled over there, and tried
> to
> > find a URI for a Telemann, but failed.
> > dbpedia: wanted Tim again. After clicking on a few web pages, none of
> which
> > seemed to provide a search facility, I resorted to my usual method:- look
> it
> > up in wikipedia and then hack the URI and hope it works in dbpedia.
> > (Sorry to name specific sites, guys, but I needed a few examples.
> > And I am only asking for a little more, so that the fruits of your
> amazing
> > labours can be more widely appreciated!)
> > wordnet: [2] below
> >
> > So I have access to Linked Data sites that I know (or at least strongly
> > suspect) have URIs I might want, but I can't find them.
> > How on earth do we expect your average punter to join this world?
> >
> > What have I missed?
> > Searching, such as Sindice: Well yes, but should I really have to go off
> to
> > a search engine to find a dbpedia URI? And when I look up "Telemann
> dbtune"
> > I don't get any results. And I wanted the dbtune link, not some other
> link.
> > Did I miss some links on web pages? Quite probably, but the basic problem
> > still stands.
> > SPARQL: Well, yes. But we cannot seriously expect our users to formulate
> a
> > SPARQL query simply to find out the dbpedia URI for Tim. What is the
> regexp
> > I need to put in? (see below [1])
> > A foaf file: Well Tim's dbpedia URI is probably in his foaf file
> (although
> > possibly there are none of Tim's URIs in his foaf file), if I can
> actually
> > find the file; but for some reason I can't seem to find Telemann's foaf
> > file.
> >
> > If you are still doubting me, try finding a URI for Telemann in dbpedia
> > without using an external link, just by following stuff from the home
> page.
> > I managed to get a Telemann by using SPARQL without a regexp (it times
> out
> > on any regexp), but unfortunately I get the asteroid.
> >
> > Again, my proposal:
> > *We should not permit any site to be a member of the Linked Data cloud if
> it
> > does not provide a simple way of finding URIs from natural language
> > identifiers.*
> > Otherwise we end up in a silo, and the world passes us by.
> >
> > Very best
> > Hugh
> >
> > [And since we have to take our own medicine, I have added a "Just search"
> > box right at the top level of all the rkbexplorer.com domains, such as
> > http://wordnet.rkbexplorer.com/ ]
> >
> >
> > [1]
> > Dbtune finding of Telemann:
> > SELECT * WHERE {?s ?p ?name .
> > FILTER regex(?name, "Telemann$") }
> >
> > I tried
> > SELECT * WHERE {?s ?p ?name .
> > FILTER regex(?name, "telemann$", "i") }
> > first, but got no results - not sure why.
> >
> > [2]
> > <rant>
> > I cannot believe just how frustrating this stuff can be when you really
> try
> > to use it.
> > Because I looked at Sindice for telemann, I know that it is a word in
> > wordnet ( http://sindice.com/search?q=Telemann reports loads of
> > http://wordnet.rkbexplorer.com/ links).
> > Great, he thinks, I can get a wordnet link from a "proper" wordnet
> publisher
> > (ie not me).
> > Goes to
> >
> http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData
> > to find wordnet.
> > The link there is dead.
> > Strips off the last bit, to get to the home princeton wordnet page, and
> > clicks on the browser link I find - also dead.
> > Go back and look on the
> >
> http://esw.w3.org/topic/TaskForces/CommunityProjects/LinkingOpenData/DataSet
> > s page, and find the link to http://esw.w3.org/topic/WordNet , but that
> > doesn't help.
> > So finally, I do the obvious - google "wordnet rdf".
> > Of course I get lots of pages saying how available it is, and how
> exciting
> > it is that we have it, and how it was produced; and somewhere in there I
> > find a link: "Wordnet-RDF/RDDL Browser" at
> www.openhealth.org/RDDL/wnbrowse
> > Almost unable to contain myself with excitement, I click on the link to
> find
> > a text box, and with trembling hands I type "Telemann" and click submit.
> > If I show you what I got, you can come some way to imagining my
> devastation:
> > "Using org.apache.xerces.parsers.SAXParser
> > Exception net.sf.saxon.trans.DynamicError: org.xml.sax.SAXParseException:
> > White spaces are required between publicId and systemId.
> > org.xml.sax.SAXParseException: White spaces are required between publicId
> > and systemId."
> >
> > Does the emperor have any clothes at all?
> > </rant>
> >
> >
>
>
>