Table 1: Quantitative results  $(\% \pm \sigma)$  on node classification for perturbation on graph structures data while the superscript refers to the results of paired t-test between original model and CIT-GNN (* for 0.05 level and ** for 0.01 level).
Method	ADD-0.5
Cora	CiteSeer	Pubmed
Acc	Macro-f1	Acc	Macro-f1	Acc	Macro-f1
GCN	76.12±0.91	74.95±0.88	65.43±0.68	63.02±0.59	72.58±1.10	71.84±1.00
SR-GCN	75.70±0.90	74.35±0.85	66.03±1.30	62.67±0.80	72.15±1.80	70.63±1.90
EERM-GCN	75.33±0.87	74.39±0.89	64.05±0.49	60.97±0.61
CIT-GCN(w/o)	76.88±0.34	75.63±0.47	66.67±0.55	64.21±0.47	72.83±0.32	72.01±0.21
CIT-GCN	76.98±0.49*	75.88±0.44*	67.65±0.44**	64.42±0.10**	73.76±0.40*	72.94±0.30*
GAT	77.04±0.30	76.15±0.40	64.42±0.41	61.74±0.30	71.30±0.52	70.80±0.43
SR-GAT	77.35±0.75	76.49±0.77	64.80±0.29	61.98±0.11	71.55±0.52	70.79±0.64
EERM-GAT	76.15±0.38	75.32±0.29	62.05±0.79	59.01±0.65
CIT-GAT(w/o)	77.37±0.57	76.73±0.47	65.23±0.58	63.30±0.67**	71.92±0.68	71.12±0.56
CIT-GAT	77.23±0.42	76.26±0.28	66.33±0.24**	63.07±0.37	72.50±0.74	71.57±0.82
APPNP	79.54±0.50	77.69±0.70	66.96±0.76	64.08±0.66	75.88±0.81	75.37±0.66
SR-APPNP	80.00±0.70	78.56±0.87	65.20±0.23	62.77±0.36	75.85±0.55	75.43±0.58
EERM-APPNP	78.10±0.73	76.72±0.69	66.30±0.91	63.08±0.77
CIT-APPNP(w/o)	79.79±0.40	77.95±0.32	68.06±0.52	65.30±0.32	76.21±0.55	75.23±0.37
CIT-APPNP	80.50±0.39*	78.86±0.24*	68.54±0.71*	65.51±0.45*	76.64±0.40*	75.89±0.48*
GCNII	76.98±0.92	74.92±0.97	63.16±1.20	61.14±0.78	74.03±1.10	73.37±0.75
SR-GCNII	77.55±0.21	75.09±0.41	64.74±1.86	62.44±1.53	75.10±0.78	74.36±0.95
EERM-GCNII	79.05±1.10	76.62±1.23	65.10±0.64	62.02±0.76
CIT-GCNII(w/o)	77.64±0.63	75.22±0.61	65.87±0.80	63.36±0.75**	75.00±0.47	74.70±0.54
CIT-GCNII	78.28±0.88	75.82±0.73	66.12±0.97**	63.17±0.85	75.95±0.63*	75.47±0.76*
ADD-0.75
GCN	72.37±0.55	71.09±0.36	63.34±0.60	61.09±0.54	72.48±0.31	71.06±0.58
SR-GCN	72.70±1.10	72.19±1.20	62.72±1.80	59.58±2.10	70.35±2.10	69.14±2.30
EERM-GCN	72.30±0.21	71.68±0.47	61.65±0.54	58.55±0.68
CIT-GCN(w/o)	72.90±0.53	71.70±0.67	64.83±0.79	62.33±0.56	73.00±0.46	72.30±0.56
CIT-GCN	74.44±0.75*	73.37±0.86*	64.80±0.65*	62.52±0.46*	73.20±0.36*	72.33±0.41*
GAT	73.86±0.45	72.79±0.47	63.42±1.00	61.35±0.79	70.88±0.67	69.97±0.64
SR-GAT	74.28±0.28	73.46±0.43	64.27±1.10	62.04±0.90	70.36±0.69	69.24±0.88
EERM-GAT	72.62±0.43	72.28±0.30	62.00±0.43	60.30±0.50
CIT-GAT(w/o)	74.64±0.77	73.76±0.87	63.83±0.79	62.33±0.56	71.00±0.77	69.30±0.56
CIT-GAT	74.75±0.40*	73.67±0.58*	64.74±0.67*	62.23±0.77*	71.90±0.89	70.88±0.67
APPNP	75.86±0.84	73.97±0.87	65.71±1.01	63.65±0.86	74.53±0.77	73.99±0.80
SR-APPNP	76.00±0.30	73.98±0.40	64.80±0.37	62.78±0.21	75.40±0.58	74.30±0.68
EERM-APPNP	75.30±0.65	74.87±0.62	64.90±0.69	62.32±0.60
CIT-APPNP(w/o)	77.53±0.67	75.66±0.54	67.01±0.81	64.78±0.73	76.05±0.87*	75.91±0.92**
CIT-APPNP	78.02±0.56**	76.53±0.78**	66.06±0.95*	63.81±0.58*	75.70±0.41	75.88±0.83
GCNII	73.16±1.05	71.01±1.39	62.48±1.20	60.80±0.40	75.78±0.58	75.15±0.61
SR-GCNII	75.03±0.50	72.28±0.93	60.90±2.10	59.00±1.80	75.98±1.10	75.79±0.90
EERM-GCNII	75.50±1.20	73.60±1.30	62.40±0.97	59.11±0.81
CIT-GCNII(w/o)	74.64±0.63	72.84±0.87	64.58±0.87	62.47±0.69	75.78±0.99	74.20±1.10
CIT-GCNII	77.08±1.22**	75.15±1.45**	65.82±1.04**	63.27±0.73**	76.13±1.12	75.99±1.17