vsm :: IndexMatch :: similarity
request
and the doc
.Result is in the range 0.0 .. 1.1 where 0.0 means no similarity and 1.0 means perfect similarity.
# Similarity between the `request` and the `doc`.
#
# Result is in the range 0.0 .. 1.1 where 0.0 means no similarity and 1.0
# means perfect similarity.
var similarity: Float
lib/vsm/vsm.nit:382,2--386,22