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

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Thu, 19 Mar 2009 23:16:17 -0400
Message-ID: <49C30A81.3030803@openlinksw.com>
To: Knud Hinnerk Möller <knud.moeller@deri.org>
CC: giovanni.tummarello@deri.org, Tom Heath <Tom.Heath@talis.com>, public-lod@w3.org
Knud Hinnerk Möller wrote:
> 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:
Well, the point I keep on trying to make is this: separate the quad / 
triple storage from the external pointers (URIs) used to navigate the 
quad/triple store. To make this happen you need triples in one box and 
linked data deployment in another, but collectively served up from one 
point.

You a data owner really have to use your URIs in order for their data to 
be exposed via your data space in reality? Think about this for a second 
in the context of the burgeoning "Linked Data Web" a place where "Data 
Access by Reference" drives everything.
>
> - taking away the burden of RDFising your data
But the data is already in RDF. Even if it wasn't in RDF why can't you 
handle the RDFization in your data space?
> - not having to worry about serving the data after you have produced it
Well I may be worried about "sweat and brow" amongst other things and 
would like to be attributed via some kind of digital emblem that serves 
such purposes i.e. URIs that are bound to a domain I control.
> - a stable service with a long-range commitment (as Daniel already said)
Yes, but is that worth the dislocation of the domain component of the 
HTTP identifier pointing back to me?
>
> - 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
None of these points are incongruent with what I am stating repeatedly. 
What you are really doing here is defining the solution based on the 
technology choice you've made rather that looking at you technology 
choice in relation to the essence of the "Linked Data Web" that it seeks 
to bolster.

>
> 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!
>
I assume you mean if people are already serving up their data in RDF 
Linked Data form based on what you outlined above?

Kingsley
> 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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>>>>>>>
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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 
>>>>> usage of
>>>>> the intended recipient only. If you are not the intended 
>>>>> recipient, then
>>>>> please return this message to the sender and delete it. Any use of 
>>>>> this
>>>>> e-mail by an unauthorised recipient is prohibited.
>>>>>
>>>>> Talis Information Ltd is a member of the Talis Group of companies 
>>>>> and is
>>>>> registered in England No 3638278 with its registered office at 
>>>>> Knights
>>>>> Court, Solihull Parkway, Birmingham Business Park, B37 7YB.
>>>>>
>>>>> ______________________________________________________________________ 
>>>>>
>>>>> This email has been scanned by the MessageLabs Email Security System.
>>>>> For more information please visit
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>>>>> http://www.messagelabs.com/email______________________________________________________________________ 
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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
>
>
>
>


-- 


Regards,

Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Friday, 20 March 2009 03:16:58 UTC

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