Method	Preprocessing (r-feasible networks)	Decomposition			Conversion technique	Optimization targets
Method	Preprocessing (r-feasible networks)	Methods	r-feasible networks	Node reduction	Conversion technique	Gates	Levels	Inverters	Gate inputs
MALS [20]	$r = 3$	1	$r = 3$	No	K-map	Yes	No	No	No
Kong’s [21]	$r = 3$	1, 2, 3, 4	$r = 3$	Yes	40 Primitive functions	Yes	No	Yes	Yes
MLUT [26]	$r = 4$	1, 2, 3, 4	$r = 2, 3, 4$	Yes	90 Primitive functions	Yes	Yes	Yes	Yes