Re: Categorization + Whether a POI must have location

Could not a POI be attached to a roving physical thing, however, like a Taxi or Bus?  I interpret POI as Point of Interest rather than Place of Interest.  And a Point of Interest could be attached to something that is moving.  Further, to me, a POI may be temporary, so be at a particular point (or roving object) for only a certain period of time.

/Roy.
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On 27/04/2011, at 7:24 AM, Seiler, Karl wrote:

> If POI stands for Place-of-interest then by definition and scope/charter we are defining the means to describe a place.
>  
> Also, if we want to drop the idea of a Place-of-interest having an “unknown” location, to keep from sliding sideways into descriptions of concepts, then I am OK with that.
>  
> _______________________________
> Karl Seiler
> Director Location Technology & Services
> NAVTEQ - Chicago
> (T)  +312-894-7231
> (M) +312-375-5932
> www.navteq.com
>  
> From: public-poiwg-request@w3.org [mailto:public-poiwg-request@w3.org] On Behalf Of Andy Braun
> Sent: Tuesday, April 26, 2011 2:09 PM
> To: nathan@webr3.org
> Cc: Thomas Wrobel; Hegde, Vinod; public-poiwg@w3.org; Dan Brickley
> Subject: Re: Categorization + Whether a POI must have location
>  
> My question about whether or not a POI must have a location comes down to whether or not location is important. 
>  
>  Take for example the "'66 Camaro", I can identify this point of interest by its distinctive style. There is a great deal of interesting data associated with this car.  While I will not try to argue that this car has no location, I would argue that its location isn't necessary to pull the interesting data. 
>  
> Andy
> 
> On Thu, Apr 21, 2011 at 12:50 PM, Nathan <nathan@webr3.org> wrote:
> Thomas Wrobel wrote:
> " to let users create POIs for Art of Computer Programming, Easter
> ,The Social Network "
> 
> No, because they arnt POIs.
> We arnt trying to make a database of all concepts here. (Thats what
> Linked data is for, theres already plenty of databases forming for all
> sorts of conceptual things;
> http://www.schemaweb.info/schema/BrowseSchema.aspx has a few)
>  
> +1, fully agree.
>  
> 
> A POI could have a category, but that doesn't mean all categories are POIs.
>  
> have a category, or be a category?
>  
> 
> "Can users create these POI’s with location as unknown.?"
> 
> I hope not, to me that seems exactly like making a "href" in html
> without pointing it anywhere - its meaningless.
> I vote strongly for POIs needing a location (of some form) in order to
> be valid.
>  
> agree, a specific point, a region or a path - pretty much a usefully constrained subset of the OpenGIS concepts.
> 
> on that note, the main questions I'd raise are:
> 
> a - support for real world locations only?
> b - any spatial world, real or not?
> c - coordinates for space, relating to say planets or satellites?
> 
> (gut instinct says only a).
> 
> Following on from that, define abstract datatypes and certain lexical forms to be used in say XML and JSON or RDF.
> 
> Following on from that, perhaps a schema for the properties, defined in RDF, XML-Schema and JSON-Schema.
> 
> If this WG did all of that (even though I'm only on the outskirts and have no knowledge other than the charter and browsing a few mails), it'd be a great addition to the web, IMHO.
> 
> Unsure:
> - any need for a specific scheme to encode locations in a URI form? If so, new scheme or data: or using some fragments form like media fragments did?
> 
> All the Best,
> 
> Nathan
>  
> 
> To me a POI should, essentially, be a physical hyperlink - a way to
> link the real and virtual worlds together in some form.
> 
> -Thomas
> 
> 
> ~~~~~~
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> 
> 
> On 20 April 2011 16:32, Hegde, Vinod <vinod.hegde@deri.org> wrote:
> Hi,
> 
> 
> 
> Once we use some real world categorization schema as defined in say
> Wikipedia, it lets us define categories for almost all the ‘entities’ we
> know.
> 
> 
> 
> http://en.wikipedia.org/wiki/Art_of_Computer_Programming  Categories it
> belongs to : 1968 books | 1969 books | 1973 books | 1981 books | Computer
> books | Computer programming | Computer science
> books | Algorithms | Analysis of algorithms | Monographs | Books by Donald
> Knuth | Addison-Wesley books  It HAS NO LOCATION
> 
> 
> 
> http://en.wikipedia.org/wiki/Easter Categories it belongs to :
> Easter | Christian holidays | Holy Week It HAS NO LOCATION
> 
> 
> 
> http://en.wikipedia.org/wiki/The_Social_Network Categories it belongs to:
>  2010 films | American films | English-language films | Facebook | 2010s
> drama films | American biographical films | American business
> films |American legal drama films | Courtroom dramas | Films whose writer
> won the Best Adapted Screenplay Academy Award | Best Original Music Score
> Academy Award winners | Films whose editor won the Best Film Editing Academy
> Award | Films directed by David Fincher | Films about technology | Films
> about the media | Films about fraternities and sororities | Films based on
> non-fiction books | Films set in California | Films set in
> Massachusetts | Films set in 2003 | Films set in 2004 | Films set in
> 2005 | Films shot digitally | Films shot in California | Films shot in
> Massachusetts | Nonlinear narrative films | Relativity Media
> films | Columbia Pictures films  It HAS NO LOCATION
> 
> 
> 
> My concern was whether we are going to let users create POIs for Art of
> Computer Programming, Easter ,The Social Network and millions of such ‘real
> world’ entities( for which we can identify some category in Wikipedia but
> the entity itself has no location).
> 
> 
> 
> That is are we going to let users create POIs belonging to categories which
> do not support location in their semantics.?
> 
> Can users create these POI’s with location as unknown.?
> 
> 
> 
> 
> 
> 
> 
> Vinod
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  
> 
>  
> 
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