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Re: [ontolog-forum] URIs [was: Truth]

To: ontolog-forum@xxxxxxxxxxxxxxxx
From: Kingsley Idehen <kidehen@xxxxxxxxxxxxxx>
Date: Thu, 12 Jul 2012 15:44:13 -0400
Message-id: <4FFF290D.3020004@xxxxxxxxxxxxxx>
On 7/12/12 3:06 PM, Ed Barkmeyer wrote:
>
> Kingsley Idehen wrote:
>> On 7/12/12 2:15 PM, David Price wrote:
>>> OMG URIs are not designed to be de-referencable in the Linked Data sense.
>> Yes, but they should be :-)
>>
>> Kingsley
> This is a can of worms we do not want to open.  W3C intentionally
> confused locators and identifiers, and then none other than TBL insisted
> that HTTP prefixes could be used for non-dereferenceable URIs.  We are
> not in a position to rewrite the rules or change the misguided
> practice.  We can only watch them cast the clay feet.    (01)

Ed,    (02)

My response was more inline (i.e., agreeing) with your earlier response. 
I was just about to +1 it, then I saw this.    (03)

A de-referencable URI will simply redirect to a document expressing the 
view point of one of several authorities. As you know, it doesn't really 
go beyond that. Absolute authority is eternally mercurial.    (04)

>
> -Ed
>
> P.S.  I think Kingsley and I have had some such interchange before...    (05)

I believe in de-refrencable URIs as powerful vehicles for sharing 
information (data in context). I don't believe http: scheme URIs are the 
only option. That said, when the World Wide Web is the perception 
medium, they are very cost-effective conduction mechanism :-)    (06)


Kingsley
>
>>> Cheers,
>>> David
>>>
>>> UK +44 7788 561308
>>> US +1 336 283 0606
>>>
>>>
>>>
>>>
>>> On 12 Jul 2012, at 17:55, Kingsley Idehen wrote:
>>>
>>>> On 7/12/12 12:48 PM, Steve Ray wrote:
>>>>> Matthew,
>>>>> ISO standards aren't very good at providing URIs. I was hoping to
>>>>> hear some specific recommendations, such as:
>>>>>
>>>>> http://schema.omg.org/spec/UML/2.1/uml.xml:UnlimitedNatural
>>>>> http://schema.omg.org/spec/UML/2.1/uml.xml:Boolean
>>>> Both of those URIs 404. Are they supposed to be de-referenced?
>>>>
>>>> Kingsley
>>>>>   
>>>>> Steven R. Ray, Ph.D.
>>>>> Distinguished Research Fellow
>>>>> Carnegie Mellon University
>>>>> NASA Research Park
>>>>> Building 23 (MS 23-11)
>>>>> P.O. Box 1
>>>>> Moffett Field, CA 94305-0001
>>>>> Email:    steve.ray@xxxxxxxxxx <mailto:steve.ray@xxxxxxxxxx>
>>>>> Phone: (650) 587-3780
>>>>> Cell:      (202) 316-6481
>>>>> Skype: steverayconsulting
>>>>>
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>> From: Matthew West [mailto:dr.matthew.west@xxxxxxxxx]
>>>>> Sent: Thursday, July 12, 2012 9:14 AM
>>>>> To: steve.ray@xxxxxxxxxx <mailto:steve.ray@xxxxxxxxxx>;
>>>>> '[ontolog-forum]'
>>>>> Subject: RE: [ontolog-forum] URIs [was: Truth]
>>>>>
>>>>> Dear Ray,
>>>>> Probably ISO.
>>>>> Matthew
>>>>>
>>>>>> -----Original Message-----
>>>>>> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
>>>>>> <mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx> [mailto:ontolog-forum-
>>>>>> bounces@xxxxxxxxxxxxxxxx <mailto:bounces@xxxxxxxxxxxxxxxx>] On
>>>>>> Behalf Of Steve Ray
>>>>>> Sent: 12 July 2012 17:05
>>>>>> To: '[ontolog-forum] '
>>>>>> Subject: Re: [ontolog-forum] URIs [was: Truth]
>>>>>>
>>>>>> Matthew,
>>>>>> I completely agree with you, and would be interested to hear from
>>>>> this
>>>>>> group what they believe are authoritative URIs for common data types
>>>>>> such
>>>>> as:
>>>>>> Float (or Real)
>>>>>> Integer
>>>>>> Boolean
>>>>>> String
>>>>>>
>>>>>> And then, thoughts on the same for measured quantities such as:
>>>>>>
>>>>>> AbsoluteDateTime
>>>>>> Duration
>>>>>> (I'll stop here for now)
>>>>>>
>>>>>> - Steve
>>>>>>
>>>>>>
>>>>>>
>>>>>> Steven R. Ray, Ph.D.
>>>>>> Distinguished Research Fellow
>>>>>> Carnegie Mellon University
>>>>>> NASA Research Park
>>>>>> Building 23 (MS 23-11)
>>>>>> P.O. Box 1
>>>>>> Moffett Field, CA 94305-0001
>>>>>> Email:    steve.ray@xxxxxxxxxx <mailto:steve.ray@xxxxxxxxxx>
>>>>>> Phone: (650) 587-3780
>>>>>> Cell:      (202) 316-6481
>>>>>> Skype: steverayconsulting
>>>>>>
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
>>>>>> <mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx>
>>>>>> [mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Matthew
>>>>>> West
>>>>>> Sent: Thursday, July 12, 2012 12:37 AM
>>>>>> To: doug@xxxxxxxxxx <mailto:doug@xxxxxxxxxx>; '[ontolog-forum] '
>>>>>> Subject: Re: [ontolog-forum] URIs [was: Truth]
>>>>>>
>>>>>> Dear Doug,
>>>>>>
>>>>>> I think this is an important point.
>>>>>>
>>>>>> DF> The more that people reuse existing URIs instead of inventing
>>>>>> DF> their own,
>>>>>> the
>>>>>>> more utility the massive tuple stores can provide.
>>>>>> MW: One of the things I try to promote is the idea of an authoritative
>>>>> source,
>>>>>> so not only are there relatively few URIs for the same thing, but
>>>>>> there is
>>>>> a
>>>>>> natural preference for which one to use. So to cross threads, if we
>>>>>> are looking for what URI to use to identify  Ferrari 458 Italia, the
>>>>>> one
>>>>> Ferrari
>>>>>> uses should be preferred, because they are clearly the authoritative
>>>>> source.
>>>>>> MW: This has the corollary that authoritative sources have the
>>>>> responsibility
>>>>>> to create URIs for the things they are responsible for.
>>>>>>
>>>>>> Regards
>>>>>>
>>>>>> Matthew West
>>>>>> Information  Junction
>>>>>> Tel: +44 1489 880185
>>>>>> Mobile: +44 750 3385279
>>>>>> Skype: dr.matthew.west
>>>>>> matthew.west@xxxxxxxxxxxxxxxxxxxxxxxxx
>>>>>> <mailto:matthew.west@xxxxxxxxxxxxxxxxxxxxxxxxx>
>>>>>> http://www.informationjunction.co.uk/
>>>>>> http://www.matthew-west.org.uk/
>>>>>>
>>>>>> This email originates from Information Junction Ltd. Registered in
>>>>>> England
>>>>> and
>>>>>> Wales No. 6632177.
>>>>>> Registered office: 2 Brookside, Meadow Way, Letchworth Garden City,
>>>>>> Hertfordshire, SG6 3JE.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>
>>>> -- 
>>>>
>>>> Regards,
>>>>
>>>> Kingsley Idehen
>>>> Founder & CEO
>>>> OpenLink Software
>>>> Company Web: http://www.openlinksw.com
>>>> Personal Weblog: http://www.openlinksw.com/blog/~kidehen
>>>> <http://www.openlinksw.com/blog/%7Ekidehen>
>>>> Twitter/Identi.ca handle: @kidehen
>>>> Google+ Profile: https://plus.google.com/112399767740508618350/about
>>>> LinkedIn Profile: http://www.linkedin.com/in/kidehen
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>
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>>
>> -- 
>>
>> Regards,
>>
>> Kingsley Idehen      
>> Founder & CEO
>> OpenLink Software
>> Company Web: http://www.openlinksw.com
>> Personal Weblog: http://www.openlinksw.com/blog/~kidehen
>> Twitter/Identi.ca handle: @kidehen
>> Google+ Profile: https://plus.google.com/112399767740508618350/about
>> LinkedIn Profile: http://www.linkedin.com/in/kidehen
>>
>>
>>
>>
>>        (07)


--     (08)

Regards,    (09)

Kingsley Idehen 
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile: https://plus.google.com/112399767740508618350/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen    (010)

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