Re: A proposal for two additional properties for LOCN

Hi Frans,

A complete and coherent coordinate system is a "sine qua non" for analysis of data, planning strategy and measuring performance.

Your questions ...
1)   Are the semantics of the two properties really absent from the  semantic web at the moment?

As long as the perception exists that translation parameters are an arbitrary coding option; "absent" is exactly the right word, IMHO.

2)  Is the Location Core Vocabulary an appropriate place to add  them?

I believe so, because if not there, where ?

3)  Is the proposed way of modelling the two properties right? Could conflicts with certain use cases occur?

The amplitude of a Normal Distribution depends on "sigma" (square root of the Variance) and the square root of '2' and the square root of PI().  The universe where (Variance, Two or PI) have multi-valued roots is not a valid "use case", it is modeling (i.e. Graphic Arts) malpractice.
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If you want "hard numbers" ...

For strategy, planning and performance metric measurement (Strategy Markup Language - StratML) [1] the coordinate system is South Pole to North Pole (degrees) / East to West (degrees) / Year to Year+1 (degree-day) [2].

The spreadsheets - detailed calculations - are at [3].

For Work-Life Balance, sunrise and sunset detailed calculations are at [4].  There is little or no difference between the results obtained by shifting the origin from the Winter Solstice to New Year's Day , and marking seasonal transits over the Tropics.  These are Astronomy conventions versus Civil Time conventions.  However,  vertical shifts (Work - Life Balance) are better visualized with a two-layer map. The time of day (layer) and sleep wake cycle (layer) are not "spin coupled", meaning that vector and raster scales (mentioned in your Wiki post) cannot be reconsilled with an average. There is no Central Limit to "Work Ethic".
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If you want pictures ...
It is the Labor Day Holiday in the US, and like many I am mourning the passage of summer by eating too much in short pants I am to old to wear and avoiding anything like work.  The spreadsheets have charts :-)

Best,
Gannon


[1] http://xml.fido.gov/stratml/index.htm
[2] http://www.rustprivacy.org/2014/balance/opers/
[3] http://www.rustprivacy.org/2014/balance/opers/stratml-operations.zip
[4] http://www.rustprivacy.org/2014/balance/opers/true-up-wlb.zip



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On Mon, 9/1/14, Frans Knibbe | Geodan <frans.knibbe@geodan.nl> wrote:

 Subject: A proposal for two additional properties for LOCN

     Hello all,
 
     
 
     I have made a wiki page for a provisional proposal for the addition of two new properties to the Location Core Vocabulary: CRS and spatial resolution. I would welcome your thoughts and comments. 
  
     The proposal is based on earlier discussions on this list. I am not certain about any of it, but I think starting with certain definitions can help in eventually getting something that is good to work with.     
 
     Some questions that I can come up with are:
   
       Are the semantics of the two properties really absent from the  semantic web at the moment?
       Is the Location Core Vocabulary an appropriate place to add  them?
       Is the proposed way of modelling the two properties right? Could conflicts with certain use cases occur?
     
     More detailed questions are on the wiki page.
 
     
     Regards,
 
       Frans
 
     
     
 
     
     
         
         Frans Knibbe
 
         Geodan
 
         President Kennedylaan 1
 
         1079 MB Amsterdam (NL)
 
         
 
         T +31 (0)20 - 5711 347
 
         E frans.knibbe@geodan.nl
 
         www.geodan.nl | disclaimer

Received on Monday, 1 September 2014 16:29:35 UTC