Alan Ruttenberg wrote:
> On Sat, Oct 4, 2008 at 8:46 PM, Pat Hayes <phayes@xxxxxxx> wrote:
>> On Oct 4, 2008, at 2:46 AM, paola.dimaio@xxxxxxxxx wrote:
>>
>>> Cool thanks
>>>
>>> it renders well in firefox without extension
>>> but I am not sure understand how one uri can be viewed both as rdf
>>> source and html
>> It is resolved by 'content negotiation', a similar technique used for
>> example to decide which language version you get of a multi-language-
>> edition newspaper. To regard these editions as a single resource is
>> considered good Web practice according to the W3C Architectural
>> guidelines, but the extension of this to the HTML/RDF distinction is
>> currently more controversial. So this might be good practice,
>> depending on how the current debates about RDF and content negotiation
>> finally settle out. In the meantime one should probably treat it as
>> provisionally good practice, or maybe experimental good practice.
>
> Ahem.
>
> There is not a whiff of content negotiation, which I don't like
> because it makes it confusing to figure out what resource the URI
> names. I do not consider using content negotiation good practice, even
> provisionally. (01)
Content negotiation can be an effective practice given a model theoretic
semantics based on pragmaticism. Given that we can't constrain behavior
on the web, the key point is to align model theory and practice. I
certainly defer to Pat on this issue, but I believe the recent
developments in linked data, specifically the introduction of
information and non-information resources, imply a need to update the
current RDF model theory to reflect a vocabulary that differentiates
things, things in the world and references to things in the world.
Pragamticism and content negotiation could come later, like after semiotics. (02)
> The specific series of events that happens when the browser does a get
> of http://purl.obofoundry.org/obo/OBI_0000225 (03)
snip ... (04)
> For those that might think that this looks like a lot of traffic to
> generate the page, I'll remind that there are a variety of ways that
> this same information can be retrieved much more efficiently, for
> example the whole OBI OWL file
> (http://purl.obofoundry.org/obo/obi.owl), or as a query against the
> Neurocommons triple store at http://sparql.neurocommons.org/ . (05)
Information and non-information resources can be effectively
differentiated without network traffic. Would you mind explaining how
you believe the introduction of network traffic better differentiate
information and non-information resources ? (06)
> For the
> single dereference of a citable name, we consider it more important
> that we try as best possible to not confuse what the URI denotes, and
> to have systems in place that reduce as much as possible the chance
> that there be incentive to give another name (URI) for the same
> entity. (07)
So how does network traffic clarify what the URI denotes ? (08)
You seem to be saying that linked data implies a disincentive for
introducing new representations, but this requires that consumers of
representations standardize their interpretation. (09)
I'm a congregationalist which I guess is a bit left of Unitarian these
days. I suggest our understanding of semantics today is not sufficiently
mature to introduce disincentives into web architecture in an attempt to
achieve the web's goals. (010)
> -Alan
>
>
>
>> Pat
>>
>>>
>>> or do we have more than one uri for the same resource? if so, is that
>>> legal/good practice?
>>>
>>> thanks
>>>
>>> PDM
>>>
>>>
>>> On Sat, Oct 4, 2008 at 12:35 AM, Alan Ruttenberg
>>> <alanruttenberg@xxxxxxxxx> wrote:
>>>> Whoops, typo: That should be: http://purl.obofoundry.org/obo/OBI_0000225
>>>> Thanks for noticing!
>>>> Note that if you view source, you will see RDF rather than HTML. The
>>>> HTML is browser only, generated by a stylesheet instruction.
>>>> -Alan
>>>>
>>>> On Sat, Oct 4, 2008 at 3:19 AM, <paola.dimaio@xxxxxxxxx> wrote:
>>>>>> - http://purl.obofoundry.org/obo/OBO_0000225 - an example of what
>>>>>> we
>>>>>> think should be a typical response for an ontology term
>>>>> Alan, when click on that url with firefox i get redirected to
>>>>> http://www.berkeleybop.org/ontologies/OBO_0000225
>>>>>
>>>>> and see 'object not found'
>>>>> is this the response to be expecting, or suggesting should be
>>>>> expected?
>>>>>
>>>>>
>>>>> --PDM (011)
Best Wishes,
Rick (012)
blog: http://phaneron.rickmurphy.org
web: http://www.rickmurphy.org
phone: 703.201.9129 (013)
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