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Re: LDOW2009 Workshop now publishing Linked Data (was Re: Linked Data on the Web (LDOW2009) workshop papers online.)

From: Knud Hinnerk Möller <knud.moeller@deri.org>
Date: Thu, 19 Mar 2009 21:32:29 +0000
Cc: Tom Heath <Tom.Heath@talis.com>, public-lod@w3.org
Message-Id: <706F5FC3-9F87-4091-A6E6-4436D622141A@deri.org>
To: giovanni.tummarello@deri.org
Hi guys,

just to clarify: my intention is not to encourage everyone to wildly  
mint URIs in namespaces they don't control (shiver...), and neither to  
accumulate all possible conference data at data.semanticweb.org (the  
dogfood site).

The point was this: _if_ you would like your data to be incorporated  
into the dogfood site, then it should have dogfood namespace URIs,  
otherwise we cannot serve it. We hope to offer people who want to  
contribute to the site some advantages, such as:

- taking away the burden of RDFising your data
- not having to worry about serving the data after you have produced it
- a stable service with a long-range commitment (as Daniel already said)
- data integration across events through people and organisations
- the possibility to let the community add to the data (in the form of  
SIOC discussions)
- a UI that, while it can always be improved, is tailored for the  
domain of its data

If that sounds appealing, then people can avail of those services in  
the way I outlined earlier in this thread. Apart from that, I agree  
with what Giovanni says below! If people are already serving their  
data and are happy with it, then there is no need to duplicate it onto  
the dogfood site!

Cheers,
Knud


On 19.03.2009, at 16:34, Giovanni Tummarello wrote:

> The only reason to mint resolvable URIs is to allow fetching of a  
> description
>
> i'd say that minting in other's people spaces is really calling for
> troubles and should be discouraged? one should, could, possibly put
> "sameas" if some URI exists somewhere else.
>
> honestly? i dont even see the reasonw hy to copy this data on dogfood!
> the entire point about semanti cweb is to be able to use data that's
> distributed.
> copying will only create wrong duplicates once you change a bit of the
> data, e.g. correct the spelling of my last name in the page.
>
> if its one source, then fine, the source is changed and its indexed
> again if it has been copied.. everybody loses, i'd say :-)
>
>
> Giovanni
>
> On Thu, Mar 19, 2009 at 3:42 PM, Knud Hinnerk Möller
> <knud.moeller@deri.org> wrote:
>> Hi again,
>>
>> On 19.03.2009, at 14:58, Tom Heath wrote:
>>
>>> Hi Knud :)
>>>
>>> 2009/3/19 Knud Hinnerk Möller <knud.moeller@deri.org>:
>>>>
>>>> Hi Tom,
>>>>
>>>> great stuff, and nice you're using some of our swc vocabulary!
>>>
>>> Once a <http://data.semanticweb.org/ns/swc/ontology#DogfoodTsar>
>>> always a <http://data.semanticweb.org/ns/swc/ 
>>> ontology#DogfoodTsar> ;)
>>
>> It's an unliftable curse!
>>
>>
>>>> I'd love to
>>>> import the data into the dog food site - the more data we have  
>>>> there, the
>>>> better. However, as your data is at the moment, only the people  
>>>> would
>>>> show
>>>> up as resources on our site, since everything else is in the ldow
>>>> namespace.
>>>
>>> Good point!
>>>
>>>> Do you think you could generate an xml file as described in [1]?  
>>>> That
>>>> would
>>>> make the import task easiest and would generate RDF that integrates
>>>> nicely
>>>> with the rest of the dataset!
>>>
>>> No sign of [1] in your mail, but I think I follow you. So am I ok to
>>> modify my script to mint URIs in the following namespace?
>>> http://data.semanticweb.org/workshop/ldow/2009/
>>
>> ooops... [1] was supposed to point to
>> http://data.semanticweb.org/documentation/user/faq#how_to_add
>>
>> You are absolutely ok to mint URIs in the dogfood namespace, as  
>> long as we
>> manage to get the data into the site afterwards! The easiest way  
>> might be to
>> produce the XML files as outlined in [1] (this time the link is  
>> really
>> there! ;), but we should also manage to get it to work by adding  
>> the right
>> triples in your RDFa. I should write up a list of triples that are  
>> necessary
>> for the dogfood UI to make sense of the data - everything can be  
>> loaded, but
>> not everything displays nicely at the moment.
>>
>>>> One comment about the modelling. You say:
>>>>
>>>> <http://events.linkeddata.org/ldow2009/papers/ 
>>>> ldow2009_paper11.pdf> a
>>>> swrc:InProceedings .
>>>>
>>>> Would it not be nicer to have a separate URI for the paper and  
>>>> then link
>>>> to
>>>> the pdf? E.g.:
>>>>
>>>> <http://events.linkeddata.org/ldow2009/papers/ldow2009_paper11> a
>>>> swrc:InProceedings .
>>>> <http://events.linkeddata.org/ldow2009/papers/ldow2009_paper11>  
>>>> swrc:url
>>>> <http://events.linkeddata.org/ldow2009/papers/ 
>>>> ldow2009_paper11.pdf> .
>>>>
>>>> What do you think?
>>>
>>> Yes, good point, this would make good sense. I'll make these
>>> improvements when I have a spare moment.
>>
>> Very cool.
>>
>>> Before I spend too long on
>>> that though, are there plans that you or anyone else knows about to
>>> RDFize the data about all WWW2009 workshops etc? Would be a shame to
>>> duplicate effort, though providing it at source does have a lot of
>>> appeal.
>>
>> I just asked Daniel Schwabe if he knew if we could repeat the  
>> process from
>> last year (take EasyChair data, convert with our script) for the main
>> conference data. Let's see what comes out of that. I don't know  
>> anything
>> about the workshops, though. I'd say there are three possibilities  
>> at the
>> moment (in increasing order of effort involved):
>>
>> 1.) If you use EasyChair, take the data from there and convert with  
>> existing
>> script. You need access to the XML output of EasyChair, though.
>> 2.) send me the data in XML as per [1], so that I can convert it  
>> with the
>> same script.
>> 3.) generate the RDF yourself. That will probably need some  
>> iterations to
>> get it right (or I will have to make the dogfood URI more robust!)
>>
>>> Incidentally, I think there are some errors in
>>> <http://data.semanticweb.org/workshop/LDOW/2008/rdf>. AFAICR there  
>>> are
>>> no hasAcronym and completeGraph properties in SWC.
>>
>> ouch, you spotted my vocabulary hacking there... those two  
>> properties are
>> additions I came up with, which are unfortunately not yet reflected  
>> in the
>> vocabulary source online. I'll correct that asap.
>>
>> Cheers,
>> Knud
>>
>>>
>>>
>>> Cheers,
>>>
>>> Tom.
>>>
>>>
>>>
>>>> On 18.03.2009, at 18:03, Tom Heath wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> In the name of eating our own dog food, information about the  
>>>>> upcoming
>>>>> LDOW2009 workshop at WWW2009 is now being published as Linked  
>>>>> Data.
>>>>> Basically the workshop site [1] now contains a reasonable amount  
>>>>> of
>>>>> RDFa about papers, PC members and chairs, with links between  
>>>>> LDOW2009
>>>>> authors, chairs and PC members and their corresponding entries  
>>>>> in the
>>>>> SW Conference Corpus [2].
>>>>>
>>>>> There is plenty more data that could be exposed, but I think  
>>>>> this is a
>>>>> reasonable start. If you want to see the data in other forms,  
>>>>> you can
>>>>> use the RDFa Distiller [3], to get e.g. RDF/XML [4].
>>>>>
>>>>> Knud, if you're listening, would it be possible to get this data  
>>>>> into
>>>>> the SW Conference Corpus (and then maybe updated later if we  
>>>>> publish
>>>>> more)? Presumably this would ensure that links to authors not  
>>>>> already
>>>>> in the corpus would no longer 404.
>>>>>
>>>>> For the record, the main workshop Web page is generated by a hacky
>>>>> little PHP script that reads a data file; this script is now  
>>>>> enhanced
>>>>> to generate RDFa and links to the SW Conference Corpus. If  
>>>>> people are
>>>>> interested I can clean the code up and release it under some open
>>>>> license; it makes an easy way to generate a workshop Web site that
>>>>> does Linked Data out of the box.
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Tom.
>>>>>
>>>>> [1] http://events.linkeddata.org/ldow2009/
>>>>> [2] http://data.semanticweb.org/
>>>>> [3] http://www.w3.org/2007/08/pyRdfa/
>>>>> [4]
>>>>>
>>>>> http://www.w3.org/2007/08/pyRdfa/extract?uri=http%3A%2F%2Fevents.linkeddata.org%2Fldow2009%2F&format=pretty-xml&warnings=false&parser=lax&host=xhtml&space-preserve=true&submit=Go 
>>>>> !
>>>>>
>>>>>
>>>>> 2009/3/17 Chris Bizer <chris@bizer.de>:
>>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>>
>>>>>>
>>>>>> we  are happy to announce that the papers of this year’s Linked  
>>>>>> Data on
>>>>>> the
>>>>>> Web workshop are online now and can be accessed at
>>>>>>
>>>>>>
>>>>>>
>>>>>> http://events.linkeddata.org/ldow2009/
>>>>>>
>>>>>>
>>>>>>
>>>>>> Looking at the program, we think that LDOW2009 is going to be  
>>>>>> again a
>>>>>> exciting event.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Congratulations to the authors and lots of thanks to the  
>>>>>> members of the
>>>>>> LDOW
>>>>>> program committee for all their tough reviewing work!
>>>>>>
>>>>>>
>>>>>>
>>>>>> We are looking forward to see you in Madrid.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>>
>>>>>>
>>>>>> Chris Bizer, Tom Heath, Tim Berners-Lee, Kingsley Idehen
>>>>>>
>>>>>> (LDOW 2009 Organizing Committee)
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Please consider the environment before printing this email.
>>>>>>
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>>>>>>
>>>>>> shared innovationTM
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>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Dr Tom Heath
>>>>> Researcher
>>>>> Platform Division
>>>>> Talis Information Ltd
>>>>> T: 0870 400 5000
>>>>> W: http://www.talis.com/
>>>>
>>>> -------------------------------------------------
>>>> Knud Möller, MA
>>>> +353 - 91 - 495086
>>>> Smile Group: http://smile.deri.ie
>>>> Digital Enterprise Research Institute
>>>>  National University of Ireland, Galway
>>>> Institiúid Taighde na Fiontraíochta Digití
>>>>  Ollscoil na hÉireann, Gaillimh
>>>>
>>>> Please consider the environment before printing this email.
>>>>
>>>> Find out more about Talis at www.talis.com
>>>> shared innovationTM
>>>>
>>>> Any views or personal opinions expressed within this email may  
>>>> not be
>>>> those
>>>> of Talis Information Ltd or its employees. The content of this  
>>>> email
>>>> message
>>>> and any files that may be attached are confidential, and for the  
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>>>
>>>
>>>
>>> --
>>> Dr Tom Heath
>>> Researcher
>>> Platform Division
>>> Talis Information Ltd
>>> T: 0870 400 5000
>>> W: http://www.talis.com/
>>
>> -------------------------------------------------
>> Knud Möller, MA
>> +353 - 91 - 495086
>> Smile Group: http://smile.deri.ie
>> Digital Enterprise Research Institute
>>  National University of Ireland, Galway
>> Institiúid Taighde na Fiontraíochta Digití
>>  Ollscoil na hÉireann, Gaillimh
>>
>>
>>
>>

-------------------------------------------------
Knud Möller, MA
+353 - 91 - 495086
Smile Group: http://smile.deri.ie
Digital Enterprise Research Institute
   National University of Ireland, Galway
Institiúid Taighde na Fiontraíochta Digití
   Ollscoil na hÉireann, Gaillimh
Received on Thursday, 19 March 2009 21:33:20 UTC

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