Briefly, B 3 computes the R and P values of each NP and averages these values at the end.
for each NP, NP j , B 3 first computes the number of common NPs in KP j and RP j , the clusters containing NP j in KP and RP , respectively, and then divides this number by |KP j | and |RP j | to obtain the R and P values of NP j , respectively.