RE: Categorization + Whether a POI must have location

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<http://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<mailto: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


~~~~~~
Reviews of anything, by anyone;
www.rateoholic.co.uk<http://www.rateoholic.co.uk>
Please try out my new site and give feedback :)



On 20 April 2011 16:32, Hegde, Vinod <vinod.hegde@deri.org<mailto: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











The information contained in this communication may be CONFIDENTIAL and is intended only for the use of the recipient(s) named above.  If you are not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication, or any of its contents, is strictly prohibited.  If you have received this communication in error, please notify the sender and delete/destroy the original message and any copy of it from your computer or paper files.