Table 10: Analysis on the number of highest recalls attained in fourth layer (R1 to R5).

Structural Representation	Group Having the Highest Recall Values Attained	Better Performance in Top-ranked NN	Better Performance in Low-ranked NN	Increasing Low-ranked NNs might Improve Performance
ECFP4	R1
ECFC4	R5
SRECFC4	R2, R5