W3C home > Mailing lists > Public > public-vocabs@w3.org > December 2012

Re: New guy questions / location where content was created

From: Jeff Meyer <jeff@gwhat.org>
Date: Wed, 12 Dec 2012 11:56:41 -0800
Message-ID: <CAA1fFeyjhEyEToUNxqNPjrHaKpxaF8FfP_aLyy0wQVmPae1T=A@mail.gmail.com>
To: "Michael Steidl (IPTC)" <mdirector@iptc.org>
Cc: public-vocabs@w3.org
Michael -

Thanks for the helpful background. Yes... it would be nice if more cameras
(in addition to phones) had compasses and accelerometers. : ) I like to
think of one of my projects as involving adding EXIF information to
historical photos.

So - on the process front - are there next steps to apply to have
creationLocation = type Place added to the schema for Thing->CreativeWork ?
(or are there steps? : ) )

Thanks, Jeff


On Wed, Dec 12, 2012 at 11:28 AM, Michael Steidl (IPTC)
<mdirector@iptc.org>wrote:

> Hi Jeff,****
>
> ** **
>
> I agree, using class Place (http://schema.org/Place) would make the most
> sense as it provides text labels and geo coordinates.****
>
> ** **
>
> A comment on the azimuth issue: the Photo Metadata working group of the
> IPTC had a very similar discussion some time ago and came to the conclusion
> that it is better to describe precisely (e.g. northeastern corner of 4th
> and Vine) what is in the photo as there are no widely available devices for
> measuring the azimuth and this may make this property living from guesses –
> while more and more cameras have a gps receiver, external or internal.****
>
> ** **
>
> Michael****
>
> ** **
>
> *From:* Jeff Meyer [mailto:jeff@gwhat.org]
> *Sent:* Monday, December 10, 2012 8:55 PM
> *To:* Michael Steidl (IPTC)
> *Cc:* public-vocabs@w3.org
> *Subject:* Re: New guy questions / location where content was created****
>
> ** **
>
> Hi Michael - ****
>
> ** **
>
> Thanks for the feedback - very interesting to see the IPTC link.****
>
> ** **
>
> I'm not sure dateline fills the need, as it is a text property. Is it
> possible to define dateline as a geocoordinate?****
>
> http://schema.org/GeoCoordinates****
>
> ** **
>
> Using a geocoordinate would help accomodate current digital pictures, many
> of which have this information built into their EXIF data.****
>
> ** **
>
> Azimuth is also critical, as even a basic dateline in a city (corner of
> 4th and Vine) wouldn't tell me which direction the picture was looking -
> e.g. assuming E-W and N-S street directions, "looking East down Vine from
> 4th," or even "looking at the NW corner of 4th & Vine from the SE corner of
> 4th & Vine." For historical photographs, this can help software engines
> build historical perspectives and composites much more quickly.****
>
> ** **
>
> Another new guy question - is there a reason "MediaObject" is defined as
> something on the web? I would think schemas are trying to describe items in
> the real world, even if they are not available on the web.****
>
> ** **
>
> Thanks!****
>
> Jeff****
>
> ** **
>
> ** **
>
> On Mon, Dec 10, 2012 at 4:55 AM, Michael Steidl (IPTC) <mdirector@iptc.org>
> wrote:****
>
> Hi Jeff****
>
>  ****
>
> Re “creationLocation”: actually the property you request exists – but not
> as requested by you.****
>
> The facts:****
>
> -          The NewsArticle class of schema.org (
> http://schema.org/NewsArticle) has a property named dateline and the
> definition “The location where the NewsArticle was produced.”
> The name “dateline” is inherited from an old tradition to start news with
> “New York (AP) 10 December 2012 – Mr Doe said …”
> which includes the date but also typically the location.****
>
> -          From what you write I infer that you want to apply this
> property to photos, which is a MediaObject in general and an ImageObject in
> particular. Unfortunately none of these classes has such a dateline or
> something similar.****
>
> -          The IPTC Photo Metadata standard has a Location Created
> property and it would be great to have an equivalent property in
> schema.org. I would like to add that the IPTC standard as another
> property: locationShown which defined the place you can see in the picture.
> Primarily for nature photos these places (where created, what is shown)
> could be quite different. But locationShown can be expressed by using the
> about property of the CreativeWork class of schema.org.****
>
>  ****
>
> The solutions I propose for discussion are:****
>
> a)      Move the dateline up the class hierarchy and make it a property
> of CreativeWork
> OR****
>
> b)      Add a property locationCreated  to the MediaObject class.****
>
>  ****
>
> Michael****
>
>  ****
>
> *Michael Steidl*****
>
> Managing Director of the IPTC [mdirector@iptc.org]****
>
> International Press Telecommunications Council
> Web: www.iptc.org - on Twitter @IPTC <http://www.twitter.com/IPTC>****
>
>  ****
>
>  ****
>
> *From:* Jeff Meyer [mailto:jeff@gwhat.org]
> *Sent:* Friday, December 07, 2012 10:25 PM
> *To:* public-vocabs@w3.org
> *Subject:* New guy questions****
>
>  ****
>
> Hi - ****
>
>  ****
>
> New guy trying to learn more here.****
>
>  ****
>
> Looking for where I can go to find answers to questions like:****
>
>  ****
>
> > Why is there no schema for thing->manmade->structure or
> thing->manmade->structure->building? (all the schema seem to want to jump
> straight to what type of building, e.g. Thing > Place > CivicStructure)***
> *
>
>  ****
>
> > How do I extend the global schema.org schema to add things like
> creationLocation (e.g. where was the photograph taken?) and creationAzimuth
> (e.g. which direction was the camera pointing?)?****
>
>  ****
>
> I realize these are basic questions, but the information at schema.orgseems a bit limited & dead end. For example, I understand that I can extend
> schema on my own (http://schema.org/docs/extension.html), but
> creationLocation seems to be pretty common and generic & I'd hate to do
> stuff differently from the way others are doing it. (e.g. what's the
> location for a picture of the Grand Canyon or Mount Everest?).****
>
>  ****
>
> Do I need to submit proposals at
> http://www.w3.org/wiki/WebSchemas/SchemaDotOrgProposals?****
>
>  ****
>
> Thanks!****
>
> Jeff
> ****
>
>  ****
>
> --
> Jeff Meyer
> Global World History Atlas
> www.gwhat.org
> jeff@gwhat.org
> 206-676-2347****
>
>
>
> ****
>
> ** **
>
> --
> Jeff Meyer
> Global World History Atlas
> www.gwhat.org
> jeff@gwhat.org
> 206-676-2347
>
> ****
>



-- 
Jeff Meyer
Global World History Atlas
www.gwhat.org
jeff@gwhat.org
206-676-2347
Received on Wednesday, 12 December 2012 19:57:15 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Wednesday, 12 December 2012 19:57:15 GMT