Schwab, Lafourcade, Prince, pres. by Ch. Boitet
Antonymy and Conceptual Vectors
Angular or Ç thematic È distance
nDa(x,y) = angle(x,y) = acos(sim(x,y))
n    = acos(x.y /|x ||y |)
n0 ² D(x,y) ² p (positive components)
nIf 0 then x and y are colinear : same idea.
nIf p/2 : nothing in common.
x
y