[georss] Geolocation by reference

[Carl Reed OGC Account]

Sean -

OK. Perhaps terminology?

Cheers

Carl

----- Original Message ----- 
From: "Sean Gillies" <sgillies at frii.com>
To: <georss at lists.eogeo.org>
Sent: Saturday, November 10, 2007 12:03 PM
Subject: Re: [georss] Geolocation by reference


> Carl,
>
> Thanks for the pointer. Good stuff going on there, but I don't see that
> any of it is immediately useful to the Atom/Geo community (or my little
> classicist corner of it).
>
> Sean
>
> Carl Reed OGC Account wrote:
>> Sean -
>>
>> There is a rather large knowledge base on location by reference and
>> standard approach that have been discussed and well defined by the
>> GeoPRIV WG of the IETF (www.ietf.org/html.charters/geopriv-charter.html
>> ). This work is a component of the definition of a standard expression
>> of location objects (LO) for use in a number of internet standards.
>> There are a number of internet standards (HELD, SIP, RADIUS, PIDF etc)
>> that already reference as mandatory the formal expression of the LO. The
>> expression may be by civic location (such as an address), by geodetic
>> location (coordinate geometries using a GML application schema) or
>> location by reference (which can be a combination of a number of ways of
>> expressing location). These standards are being (or have been)
>> implemented by the internet and communications infrastructure companies.
>> These standards will also be an integral component of the NG 9-1-1
>> implementation.
>>
>> Some of this work may be of help in what you are trying to do. Also,
>> would be nice to stay aligned with the internet community :-)
>>
>> Regards
>>
>> Carl
>>
>> ----- Original Message ----- From: "Sean Gillies" <sgillies at frii.com>
>> To: <georss at lists.eogeo.org>
>> Sent: Friday, November 09, 2007 4:59 PM
>> Subject: [georss] Geolocation by reference
>>
>>
>>> GeoRSS has literal locations well covered. A possible use case for
>>> location by reference (hyperlink really) is coming up in my work and I
>>> want to run it by this group.
>>>
>>> My Pleiades project is collaborating with other digital classics
>>> projects to build out an ancient history web. Pleiades aims to be the
>>> authoritative gazetteer for the Greek and Roman civilizations; we
>>> maintain place name and locations resources that can be linked to from
>>> other projects for geographic context. For example, see this page on the
>>> American Numismatic Society web site about a coin from the Xanthos mint:
>>>
>>> http://publicserver.numismatics.org/collection/accnum/list?accnum=1977.158.477&single=1
>>>
>>>
>>> The developers of the site are harvesting coordinates from the Pleiades
>>> Xanthos record (http://pleiades.stoa.org/places/639166) and will be
>>> turning them around for use in their own GeoRSS feed (of mints). It
>>> works, but it's a fair amount of effort that has to be reimplemented
>>> from site to site across our little history web.
>>>
>>> I think there may be cause here to add more declarative syntax to the
>>> georss:where element. My initial idea is that georss:where could have an
>>> optional src attribute exactly as atom:content can. The value of the src
>>> attribute should be the URI of a GML document. Like so:
>>>
>>>  <atom:entry>
>>>  ...
>>>  <where src="http://example.com/locations/1.gml"/>
>>>  </atom:entry>
>>>
>>> where the resource at http://example.com/locations/1.gml would be
>>>
>>>  ...
>>>  <gml:Point>...</gml:Point>
>>>
>>> In this way the numismatists can reuse the authoritative Pleiades
>>> locations and need neither maintain their own duplicate database nor
>>> continually synch against Pleiades resources. The synchronization could
>>> become built in.
>>>
>>> There is precedent in Atom for remote sourcing, but only to my knowledge
>>> for atom:content. The src attribute feels pretty good to me, though I do
>>> think that it has the potential to make location (which is metadata) a
>>> bit too much of content (data). Does anybody have other ideas for
>>> non-literal locations?
>>>
>>> Sean
>>>
>>> _______________________________________________
>>> georss mailing list
>>> georss at lists.eogeo.org
>>> http://lists.eogeo.org/mailman/listinfo/georss
>>
>>
>
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