Comparative Study on EDM Parameter Optimization for Adsorbed Si₃N₄–TiN using TOPSIS and GRA Coupled with TLBO Algorithm

Table 5

Factor effect on GRG.

Parameter	Grey relational grade					Optimal level	Difference	Rank
	1	2	3	4	5
I	0.66371	0.64245	0.63298	0.70915	0.71766	5	0.08469	1
PON	0.67402	0.68213	0.68941	0.64122	0.67469	3	0.04819	2
POFF	0.69341	0.69833	0.69287	0.67524	0.66610	2	0.03224	4
DP	0.69017	0.66121	0.67479	0.68365	0.66613	1	0.02896	5
SV	0.66349	0.67773	0.67350	0.65383	0.69741	5	0.03392	3