[Seavox] Draft mapping

[Luis Bermudez]

John,

On Feb 7, 2007, at 8:03 AM, John Graybeal wrote:

> My question for Luis is whether there is a SKOS relationship that  
> reflects this intersection of properly indexed resources, where the  
> two overlap but neither subset or superset relationships exist.

SKOS suggest other two types of mapping relations:

majorMatch
If 'concept A has-major-match concept B' then the set of resources  
properly indexed against concept A shares more than 50% of its  
members with the set of resources properly indexed against concept B.

minorMatch
If 'concept A has-minor-match concept B' then the set of resources  
properly indexed against concept A shares less than 50% but greater  
than 0 of its members with the set of resources properly indexed  
against concept B.

Even though is not expressed, I believe the previous two mapping  
relations are symmetric. Meaning that if A has-major-match B, then B   
has-major-match A.

In the case of Roy's example:
A: nutrients in the ocean
B: nitrate in the water column

We can say that:
A and B are not exact
A is not broader than B
A is not narrower than B
so we have two choices: mayor math or minor match

Nitrate is just one type of nutrient (there are others like:  
phosphorus, carbon, sulfur, etc..), and water column is very general  
and can occur in any possible body of water( lake, river etc.) . Due  
to the previous facts I will say that is a minorMatch relation.



-Luis