- From: Gannon Dick <gannon_dick@yahoo.com>
- Date: Fri, 18 Nov 2016 20:11:38 +0000 (UTC)
- To: Frans Knibbe <frans.knibbe@geodan.nl>, "public-locadd@w3.org Mailing list" <public-locadd@w3.org>, Andrea Perego <andrea.perego@jrc.ec.europa.eu>
FWIW ... In the US Presidential Election all the "experts" blew it. On November 8th - 9th almost all failed to track the results of the race (as in "race condition") properly. The official roll call will not actually be held until early January, but the end result is already determined. As it happens, people in North America have been at this "geographic identifier" thing a very long time ... By 1754 Ben Franklin was using the same acronyms for geographic areas (Postal Codes) still in use today. (http://www.rustprivacy.org/2016/stratml/franklin/). It is important to realize that the "database" of Postal Codes had already been initialized by 1754 and contained four members. There was no "Colony Zero" for Epidemiologists or Twitter to discover. Since then database operations have been INSERTs. The US Federal Constitution was adopted with the same "short stop" strategy in 1789. Only the original 13 Colonies were allowed to vote and the measure was deemed binding when approved by 9. Eventually all 13 approved. In data processing terms this amounted to a re-serialization of the roll call - the first to approve (Delaware) and the last to approve (Rhode Island) were peers. The roll call order changed as well because Connecticut comes before Delaware in alphabetical order. Apparently Delaware's early adoption and Rhode Island's dismal performance both had the "right to be forgotten". For the 2016 Election, the popular vote was manifest and folded into the Electoral College ceremonial which will take place in early January. http://www.rustprivacy.org/2016/stratml/franklin/GU-Election-Map.html (Area Maps) http://www.rustprivacy.org/2016/stratml/franklin/GU-Election-Encode.html (Subdivision Names) --Gannon -------------------------------------------- On Fri, 11/18/16, Andrea Perego <andrea.perego@jrc.ec.europa.eu> wrote: Subject: Re: LOCN and DGGS To: "Frans Knibbe" <frans.knibbe@geodan.nl>, "public-locadd@w3.org Mailing list" <public-locadd@w3.org> Date: Friday, November 18, 2016, 11:42 AM Hi, Frans. Just for our records: The notion of "geographic identifier" and the use of rdfs:seeAlso in LOCN was thoroughly discussed back in 2014, in a long thread - starting at [1] and continuing at [2]. Basically, the point is that "geographic identifier" is meant to model alternative / secondary identifiers for a spatial thing, that are preferably specified with HTTP URIs - for a more detailed explanation, see [1] and then [3]. Coming to the issue you raise, Frans, I see it as a more general one on how identifiers (not only geo ones) are modelled in the RDF world. As far as I know, there is currently no consistent practice. One of the solutions is to define specific properties - as in Schema.org, or PRISM and the Bibo ontology in the publishing domain. On the other hand, ADMS provides a more generic approach via adms:identifier / adms:Identifier. IMHO, the point is what you want to use the identifier for. For instance, if I use DGGS just for specifying the location of a resource you can use it with locn:location / rdfs:seeAlso. Another case is whether, you want to know the identifier "type" - e.g., for a publication, I may need to know which is the DOI, ISBN, etc. Andrea ---- [1]https://lists.w3.org/Archives/Public/public-locadd/2013Dec/0043.html [2]https://lists.w3.org/Archives/Public/public-locadd/2014Jan/0008.html [1]https://lists.w3.org/Archives/Public/public-locadd/2014Jan/0076.html On 18/11/2016 17:09, Frans Knibbe wrote: > Hello, > > A while ago we had a thread about Open Location Code > <https://lists.w3.org/Archives/Public/public-locadd/2015Aug/0000.html>, > which is an example of a Discrete Global Grid System (DGGS) > <https://en.wikipedia.org/wiki/Discrete_Global_Grid>. There is an OGC > Standards Working Group dedicated to the topic, the DGGS SWG > <http://www.opengeospatial.org/projects/groups/dggsswg>. > > I wonder if the Location Core Vocabulary is already equipped to work > with DGGS references. It is imaginable that people will want to use a > DGGS code to identify a location, perhaps as the only way to locate a > thing on Earth. Could such a code be expressed with LOCN? > > The most appropriate property for doing that seems to be the geographic > identifier <https://www.w3.org/ns/locn#rdfs:seeAlso>, for which > rdfs:seeAlso is taken to be the appropriate term. So would rdfs:seeAlso > be a good way to refer to a DGGS location? Two questions come to mind: > > 1. I have not studied all DGGS, but in the general case I think a DGGS > reference consists of a code and an indication of a DGGS scheme, > which is needed to decipher the code. Does that mean a DGGS > reference needs two semantic elements? Or is it all right to assume > that all DGGS references can always be expressed as a single URI > (e.g. https://map.what3words.com/monorail.section.trespass > <https://map.what3words.com/monorail.section.trespass>)? > 2. Will it be obvious to agents looking voor location data that > rdf:seeAlso can be used for an indication of location? I mean, > rdfs:seeAlso is also used for other types of relations (I realise > that this is actually not only about DGGS, but about the > discoverability of location information in general, where an > unspecific term like rdfs:seeAlso is used). > > So what do you think? > > Greetings, > Frans > > -- Andrea Perego, Ph.D. Scientific / Technical Project Officer European Commission DG JRC Directorate B - Growth and Innovation Unit B6 - Digital Economy Via E. Fermi, 2749 - TP 262 21027 Ispra VA, Italy https://ec.europa.eu/jrc/ ---- The views expressed are purely those of the writer and may not in any circumstances be regarded as stating an official position of the European Commission.
Received on Friday, 18 November 2016 20:14:56 UTC