Intensity Distance
¥Intensity of normalized ttm product
¥0 £ I(… (X € Y)) £ 1 if |x| = |y| = 1
¥DI(X, Y) = acos(I(… X € Y))
¥DI(X, X) = 0 and DI(X, 0) = p/2
¥
¥DI(tit, tit) = 0 (DA = 0)
¥DI(tit, passerine) = 0.25 (DA = 0.4)
¥DI(tit, bird) = 0.58 (DA = 0.7)
¥DI(tit, train) = 0.89 (DA = 1.14)
¥DI(tit, insect) = 0.50 (DA = 0.62)