Closed catecara closed 6 years ago
What exactely is meant by "(c, d)" and "c +d"?
On 20. März 2017 16:05:22 MEZ, catecara notifications@github.com wrote:
The m:n correspondence between classification items in classification systems can be expressed in the following way (example below taken from Guidelines on FAO. 2015. International Classifications for Agricultural Statistics):
Let items a, b belong to Classification A; item c, d belong to Classification B. e.g. a = meat of cattle and buffalo fresh b = meat of cattle and buffalo frozen c = meat of cattle fresh and frozen d = meat of buffalo fresh and frozen
Then,
(i) a corresponds to (c, d) (ii) b corresponds to (c, d) (iii) and together : a+b = c +d (in terms of classified data)The current proposal seem to capture (iii) but not (i) and (ii). I wonder whether all three correspondences should be rendered.
-- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/linked-statistics/xkos/issues/86
-- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet.
a corresponds to (c, d) in the sense that the classification items (and so their codes) "meat of cattle and buffalo fresh" partially correspond to "meat of cattle fresh and frozen" AND "meat of buffalo fresh and frozen". In particular this means that when passing from one classification system to the another (from A to B) the data classified as "a" will have to be re-allocate to c and d. Some conversion factor will be used.
(a+b) = (c+d) refers to the fact that when doing a conversion from a classification system to another (from A to B), the data re-allocated according to classification B will have to be equal to the data allocated in the original classification, under the corresponding classification items.
Hope the wording is clearer now.
So there can be more correspondences:
The m:n correspondence between classification items in classification systems can be expressed in the following way (example below taken from Guidelines on FAO. 2015. International Classifications for Agricultural Statistics):
Let items a, b belong to Classification A; item c, d belong to Classification B. e.g. a = meat of cattle and buffalo fresh b = meat of cattle and buffalo frozen c = meat of cattle fresh and frozen d = meat of buffalo fresh and frozen
Then,
(i) a corresponds to (c, d) (ii) b corresponds to (c, d) (iii) and together : a+b = c +d (in terms of classified data)
The current proposal seem to capture (iii) but not (i) and (ii). The rendering of (i) and (ii) should be discussed.