Re: [linking-data] What do the links mean?

Hi Frans,

I am not exactly sure what you mean. Are you thinking about conceptual 
neighborhood graphs for spatiotemporal relations?

For the temporal counterpart, there is an excellent paper from 1992 on 
'Temporal reasoning based on semi-intervals' from Christian Freksa. 
There is of course tons of work on spatial models including research on 
very specific cases.

Combining spatial and temporal relations into a common system would lead 
to a huge amount of relations and  most of them would not be 
distinguished by humans (which was already shown for multiple spatial 
relations).

Best,
Krzysztof


On 09/24/2015 02:39 AM, Frans Knibbe wrote:
> I don't know if this is the right place to bring this up, but 
> something occured to me when I looked at the description of Allen's 
> algebra <http://Allen%27s%20interval%20algebra> (used for temporal 
> relations): the labels for the relationships have similarities with 2D 
> spatial relationships (e.g. the DE-9IM 
> <https://en.wikipedia.org/wiki/DE-9IM#Spatial_predicates>). Which 
> perhaps is no surprise - isn't Allen's algebra essentialy a way of 
> describing events on a line, i.e. a one dimensional space?
>
> At the moment I don't have time for searching for research papers and 
> the like, but I wonder if a general model for n-dimensional 
> relationships could be used for expressing temporal and spatial 
> relationships. The DE-9IM model is for 2D space, but in 1D space 
> (linear referencing) and 3D space there is also a need for semantics 
> that describe spatial interaction between resources. A single base 
> model could perhaps simplify definition of spatiotemporal 
> relationships, lessen the amount of required properties and provide 
> extra opportunities for reasoning.
>
> Regards,
> Frans
>
>
>
> 2015-09-24 11:11 GMT+02:00 Ed Parsons <eparsons@google.com 
> <mailto:eparsons@google.com>>:
>
>     In the spatial domain do we use links to represent spatial
>     relationships of hierarchy (x is constituent part of y) and
>     topology (y is adjacent z) ?
>
>     ed
>
>     On Thu, 24 Sep 2015 at 09:33 Jeremy Tandy <jeremy.tandy@gmail.com
>     <mailto:jeremy.tandy@gmail.com>> wrote:
>
>         Email thread for collecting discussion on the question: "What
>         do the links mean?"
>
>         The related wiki entry for this questions is here [1]
>
>         For instructions about how to engage with this discussion,
>         please see my previous email [2].
>
>         Many thanks. Jeremy
>
>         [1]:
>         https://www.w3.org/2015/spatial/wiki/Linking_Data#What_do_the_links_mean.3F
>
>         [2]:
>         https://lists.w3.org/Archives/Public/public-sdw-wg/2015Sep/0044.html
>
>
>     -- 
>
>     *Ed Parsons*
>     Geospatial Technologist, Google
>
>     Google Voice +44 (0)20 7881 4501 <tel:%2B44%20%280%2920%207881%204501>
>     www.edparsons.com <http://www.edparsons.com> @edparsons
>
>


-- 
Krzysztof Janowicz

Geography Department, University of California, Santa Barbara
4830 Ellison Hall, Santa Barbara, CA 93106-4060

Email: jano@geog.ucsb.edu
Webpage: http://geog.ucsb.edu/~jano/
Semantic Web Journal: http://www.semantic-web-journal.net