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

Table 4

Grey relational analysis.

Run	Normalization							Grey relational coefficient							GRG	Rank
	MRR (g/min)	EWR (g/min)	SR (μm)	ROC (mm)	θ (deg)	CIR (mm)	CYL (mm)	MRR (g/min)	EWR (g/min)	SR (μm)	ROC (mm)	θ (deg)	CIR (mm)	CYL (mm)
1	0.10021	0.99889	0.70737	0.24714	0.94867	0.61426	0.90125	0.35720	0.99778	0.63081	0.39909	0.90689	0.56450	0.83507	0.67019	15
2	0.07176	0.99973	0.86105	0.43250	0.88917	0.76843	0.85911	0.35008	0.99945	0.78254	0.46838	0.81856	0.68347	0.78016	0.69752	10
3	0.03847	0.99946	0.47789	0.46339	0.85683	0.80195	0.69003	0.34211	0.99892	0.48919	0.48234	0.77740	0.71628	0.61731	0.63194	22
4	0.17148	0.99872	0.89263	0.61786	0.88215	0.74771	0.59381	0.37636	0.99745	0.82322	0.56680	0.80925	0.66464	0.55176	0.68421	14
5	0.06174	0.99939	0	0.71053	0.45863	0.90920	0.87766	0.34764	0.99879	0.33333	0.63334	0.48014	0.84631	0.80342	0.63471	21
6	1	0.99930	0.82737	0	0.92575	0	0	1	0.99861	0.74335	0.33333	0.87071	0.33333	0.33333	0.65895	16
7	0.09131	0.99921	0.69263	0.71053	0	0.95186	1	0.35494	0.99842	0.61930	0.63334	0.33333	0.91217	1	0.69307	12
8	0.08887	0.99908	0.40632	0.58696	0.38471	0.83851	0.79519	0.35433	0.99817	0.45717	0.54762	0.44832	0.75587	0.70941	0.61013	23
9	0.15437	0.99911	0.65474	0.55607	0.36125	0.79890	0.55052	0.37157	0.99823	0.59153	0.52970	0.43908	0.71317	0.52660	0.59570	24
10	0.04830	0.99926	0.81684	0.67964	0.93716	0.17489	0.70722	0.34442	0.99853	0.73190	0.60949	0.88835	0.37733	0.63069	0.65439	17
11	0.05123	0.99906	0.72000	0.58696	0.81174	0.80622	0.54021	0.34512	0.99811	0.64103	0.54762	0.72647	0.72069	0.52095	0.64286	20
12	0.07948	0.99913	0.17053	0.55607	0.92594	0.87264	0.72371	0.35198	0.99826	0.37609	0.52970	0.87099	0.79699	0.64409	0.65259	18
13	0.05436	1	0.20421	0.64875	0.08722	0.38452	0.39588	0.34587	1	0.38587	0.58737	0.35391	0.44824	0.45285	0.51059	25
14	0.09180	0.99866	0.74316	0.52518	0.98926	0.75746	0.84948	0.35506	0.99732	0.66064	0.51291	0.97898	0.67337	0.76862	0.70670	6
15	0.10696	0.99829	0.86526	0.46339	0.87383	0.71846	0.50241	0.35893	0.99660	0.78773	0.48234	0.79851	0.63977	0.50121	0.65215	19
16	0.05182	0.99938	0.32421	0.55607	0.89822	0.94272	0.92509	0.34526	0.99875	0.42525	0.52970	0.83087	0.89721	0.86970	0.69953	8
17	0.02826	0.99935	0.46316	0.55607	0.87795	0.95612	0.84467	0.33973	0.99870	0.48223	0.52970	0.80380	0.91933	0.76298	0.69092	13
18	0.07909	0.99857	0.76842	0.80321	0.87679	0.88300	0.78282	0.35189	0.99715	0.68345	0.71758	0.80229	0.81037	0.69717	0.72284	4
19	0.05578	0.99920	0.76421	0.61786	0.86321	0.96527	0.87423	0.34621	0.99840	0.67954	0.56680	0.78518	0.93504	0.79901	0.73003	2
20	0.04390	0.99976	0.48000	0.58696	1	0.77940	0.90653	0.34338	0.99951	0.49020	0.54762	1	0.69387	0.84250	0.70244	7
21	0.01164	0.99937	0.81474	0.52518	0.99375	0.59354	0.85361	0.33594	0.99875	0.72965	0.51291	0.98766	0.55160	0.77352	0.69858	9
22	0	0	1	1	0.94904	0.72821	0.84948	0.33333	0.33333	1	1	0.90750	0.64785	0.76862	0.71295	5
23	0.06150	0.99940	0.84842	0.71053	0.83595	0.87934	0.98213	0.34758	0.99880	0.76737	0.63334	0.75296	0.80560	0.96549	0.75302	1
24	0.08476	0.99963	0.71158	0.43250	0.65579	0.98416	0.90584	0.35330	0.99926	0.63418	0.46838	0.59227	0.96929	0.84153	0.69403	11
25	0.04537	0.99966	0.28632	0.58696	0.97324	1	0.91615	0.34373	0.99932	0.41197	0.54762	0.94921	1	0.85639	0.72975	3