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Re: Using Linking Open Data datasets

From: Michael K. Bergman <mike@mkbergman.com>
Date: Wed, 28 May 2008 11:03:24 -0500
Message-ID: <483D824C.4040507@mkbergman.com>
To: "Hausenblas, Michael" <michael.hausenblas@joanneum.at>
CC: public-lod@w3.org

Hi Michael,

Hausenblas, Michael wrote:
> Mike,
> 
> Thanks for this feedback! As you know I'm aware of UMBEL, but have to
> admit I was not aware of the fact that it might be the key to the
> solution. I guess I should do my homework more properly ;)
> 
> I'm happy that it seems I'm not the only one contemplating about this
> issue. However, I'd appreciate thoughts from others as well. There might
> be a simpler solution to the problem which I just do not happen to see.

Well, it all depends on what one defines as the "problem" and 
what one thinks is "simple".

We defined the UMBEL "problem" as how to provide linkable context 
to different datasets and instances (named entities).

Given that "problem" we think we have it about as "simple" as 
possible given the semantics demanded, the breadth of context, 
while introducing the least amount of new vocabulary [1].

I guess it all depends on what is one's world view and the 
problems chosen for attention. :)

While it is true that to use UMBEL one must pick linkable subject 
concepts from a pre-determined list of 21 K, there is also real 
power from firstly, context, and then, secondly, "exploding the 
domain" [2].

Thanks, Mike

[1] http://www.umbel.org/new_site/vocabulary.html
[2] 
http://fgiasson.com/blog/index.php/2008/04/20/exploding-the-domain-umbel-web-services-by-zitgist/

> 
> Anyways, the topic - using LOD datasets in applications - might be of
> interest for our upcoming LOD gathering.
> 
> Cheers,
> 	Michael
> 
> ----------------------------------------------------------
>  Michael Hausenblas, MSc.
>  Institute of Information Systems & Information Management
>  JOANNEUM RESEARCH Forschungsgesellschaft mbH
>   
>  http://www.joanneum.at/iis/
> ----------------------------------------------------------
>  
> 
>> -----Original Message-----
>> From: Michael K. Bergman [mailto:mike@mkbergman.com] 
>> Sent: Wednesday, May 28, 2008 5:20 PM
>> To: Hausenblas, Michael
>> Cc: public-lod@w3.org
>> Subject: Re: Using Linking Open Data datasets
>>
>> Hi Michael,
>>
>> Hausenblas, Michael wrote:
>>> Dear LODers,
>>>
>>> One thing we encounter recurrently when using the LOD 
>> datasets is where
>>> to 'start best'. I'm unsure how to handle this situation, so 
>> I tried to
>>> gather some issues along with a simple proposal how to deal with it
>>> (called MetaLOD) at [1]. The idea basically is to develop a 
>> vocabulary
>>> and gather information 'about' the LOD datasets, such as 'at Geonames
>>> you get location-based information', etc.
>> This is the basic purpose of UMBEL. :)  (See the isAbout predicate.)
>>
>> btw, we have not posted this stuff yet because it is still under 
>> review, but updated descriptions for UMBEL may be found at: 
>> http://www.umbel.org/new_site/index.html
>>
>> We are happy to share this early with the LOD list.  We hope to 
>> release everything very soon -- in the next week or two depending 
>> on some final Cyc review.
>>
>> Thanks, Mike
>>
>>> I'm aware of the fact that each LOD dataset *should* provide 
>> this kind
>>> of information about itself, however (i) not all do AFAIK, 
>> and (ii) even
>>> if all did, how can an application determine effectively and 
>> efficiently
>>> which LOD dataset might be good to use for a certain task? I 
>> don't want
>>> to propose a 'centrally controlled registry' with this idea, 
>> just a way
>>> to flag what to expect from a LOD dataset as a kind of jump start. 
>>>
>>> A formal description of the LOD dataset would also be beneficial for
>>> other exploration purposes, I guess. For example we could 
>> express access
>>> options for a LOD dataset (dump, SPARQL endpoint, etc.) or QoS
>>> information, even trust issues or (user) ratings might be of 
>> interest.
>>> Any thoughts?
>>>
>>> While I'm here: In case you're around at ESWC08, come and 
>> join us at the
>>> LOD gathering [2]
>>>
>>> Cheers,
>>> 	Michael
>>>
>>> [1] http://community.linkeddata.org/MediaWiki/index.php?MetaLOD
>>> [2]
>>>
>> http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/Lin
>> kingOpenD
>>> ata/TenerifeGathering
>>>
>>> ----------------------------------------------------------
>>>  Michael Hausenblas, MSc.
>>>  Institute of Information Systems & Information Management
>>>  JOANNEUM RESEARCH Forschungsgesellschaft mbH
>>>  Steyrergasse 17, A-8010 Graz, AUSTRIA
>>>
>>>  <office>
>>>    phone: +43-316-876-1193 (fax:-1191)   
>>>   mobile: +43-699-1876-1165
>>>   e-mail: michael.hausenblas@joanneum.at
>>>    skype: mhausenblas
>>>      web: http://www.joanneum.at/iis/ 
>>>
>>>  <see also>
>>>           http://sw-app.org/about.html 
>>>           http://riese.joanneum.at
>>> ----------------------------------------------------------
>>>
>>>
>> -- 
>> __________________________________________
>>
>> Michael K. Bergman
>> CEO  Zitgist LLC
>> 319.621.5225
>> skype:michaelkbergman
>> http://zitgist.com  http://mkbergman.com
>> __________________________________________
>>
> 

-- 
__________________________________________

Michael K. Bergman
CEO  Zitgist LLC
319.621.5225
skype:michaelkbergman
http://zitgist.com  http://mkbergman.com
__________________________________________
Received on Wednesday, 28 May 2008 16:04:29 UTC

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