Vector construction
Concept vectors
H : Thesaurus hierarchy
V(C
i
) : <a
1
,
, a
i
,
, a
n
>
a
j
= 1/ (2 ** D
um
(H, i))
1/4
1
1/4
1/4
1/16
1/16
1/64
1/64
2
6
4