a Dutch project that’s using GeoNetwork wants to show the Lucene relevance ranking expressed as a percentage on the search results page.
The Lucene relevance ranking, as such, is a number between 0 and 1 that has no meaning to a user.
I’ve implemented it for the Dutch project such that the highest result’s relevance ranking is taken as “100%”, and all other results’ relevances are normalised with respect to that.
Is anyone interested in that I merge this to the trunk ? Anyone out there doing anything with the current relevance ranking (such as, displaying it) that might be affected ?
The Lucene relevance ranking, as such, is a number between 0 and 1 that has no meaning to a user.
I've implemented it for the Dutch project such that the highest result's relevance ranking is taken as "100%", and all other results' relevances are normalised with respect to that.
Is anyone interested in that I merge this to the trunk ? Anyone out there doing anything with the current relevance ranking (such as, displaying it) that might be affected ?
+1
My experience with relevance ranking (Isite/Isearch) is that numeric values are intrinsically meaningless and server only as a starting point for arguments over how the numbers are generated. Normalized percentages are better, simple icons (eg, green, yellow and red balls) are better still.
--
Archie
-- Archie Warnock warnock@anonymised.com
-- A/WWW Enterprises www.awcubed.com
-- As a matter of fact, I _do_ speak for my employer.