Table 1: Comparison of our method ReVar and other baselines on three benchmark datasets. Experimental results are measured by averaged balanced accuracy (bAcc.,%) and F1-score (%) with the standard errors over 5 repetitions on three GNN architectures. Highlighted are the top first and second.  $\Delta$  is the margin by which our method leads state-of-the-art method.
Dataset	CiteSeer-Semi	PubMed-Semi	Computers-Semi
Imbalance Ratio (ρ=10)	bAcc.	F1	bAcc.	F1	bAcc.	F1
GCN	Vanilla	38.72 ± 1.88	28.74 ± 3.21	65.64 ± 1.72	56.97 ± 3.17	80.01 ± 0.71	71.56 ± 0.81
Re-Weight	44.69 ± 1.78	38.61 ± 2.37	69.06 ± 1.84	64.08 ± 2.97	80.93 ± 1.30	73.99 ± 2.20
PC Softmax	50.18 ± 0.55	46.14 ± 0.14	72.46 ± 0.80	70.27 ± 0.94	81.54 ± 0.76	73.30 ± 0.51
GraphSMOTE	44.87 ± 1.12	39.20 ± 1.62	67.91 ± 0.64	62.68 ± 1.92	79.48 ± 0.47	72.63 ± 0.76
BalancedSoftmax	55.52 ± 0.97	53.74 ± 1.42	73.73 ± 0.89	71.53 ± 1.06	81.46 ± 0.74	74.31 ± 0.51
+ TAM	56.73 ± 0.71	56.15 ± 0.78	74.62 ± 0.97	72.25 ± 1.30	82.36 ± 0.67	72.94 ± 1.43
Renode	43.47 ± 2.22	37.52 ± 3.10	71.40 ± 1.42	67.27 ± 2.96	81.89 ± 0.77	73.13 ± 1.60
+ TAM	46.20 ± 1.17	39.96 ± 2.76	72.63 ± 2.03	68.28 ± 3.30	80.36 ± 1.19	72.51 ± 0.68
GraphENS	56.57 ± 0.98	55.29 ± 1.33	72.13 ± 1.04	70.72 ± 1.07	82.40 ± 0.39	74.26 ± 1.05
+ TAM	58.01 ± 0.68	56.32 ± 1.03	74.14 ± 1.42	72.42 ± 1.39	81.02 ± 0.99	70.78 ± 1.72
ReVar	65.28 ± 0.51	64.91 ± 0.51	79.20 ± 0.72	78.45 ± 0.46	84.67 ± 0.17	80.25 ± 0.87
Δ	+7.27(12.53%)	+8.59(15.25%)	+5.06(6.82%)	+6.03(8.33%)	+2.27(2.75%)	+5.94(7.99%)
GAT	Vanilla	38.84 ± 1.13	31.25 ± 1.64	64.60 ± 1.64	55.24 ± 2.80	79.04 ± 1.60	70.00 ± 2.50
Re-Weight	45.47 ± 2.35	40.60 ± 2.98	68.10 ± 2.85	63.76 ± 3.54	80.38 ± 0.66	69.99 ± 0.76
PC Softmax	50.78 ± 1.66	48.56 ± 2.08	72.88 ± 0.83	71.09 ± 0.89	79.43 ± 0.94	71.33 ± 0.86
GraphSMOTE	45.68 ± 0.93	38.96 ± 0.97	67.43 ± 1.23	61.97 ± 2.54	79.38 ± 1.97	69.76 ± 2.31
BalancedSoftmax	54.78 ± 1.25	51.83 ± 2.11	72.30 ± 1.20	69.30 ± 1.79	82.02 ± 1.19	72.94 ± 1.54
+ TAM	56.30 ± 1.25	53.87 ± 1.14	73.50 ± 1.24	71.36 ± 1.99	75.54 ± 2.09	66.69 ± 1.44
Renode	44.48 ± 2.06	37.93 ± 2.87	69.93 ± 2.10	65.27 ± 2.90	76.01 ± 1.08	66.72 ± 1.42
+ TAM	45.12 ± 1.41	39.29 ± 1.79	70.66 ± 2.13	66.94 ± 3.54	74.30 ± 1.13	66.13 ± 1.75
GraphENS	51.45 ± 1.28	47.98 ± 2.08	73.15 ± 1.24	71.90 ± 1.03	81.23 ± 0.74	71.23 ± 0.42
+ TAM	56.15 ± 1.13	54.31 ± 1.68	73.45 ± 1.07	72.10 ± 0.36	81.07 ± 1.03	71.27 ± 1.98
ReVar	66.04 ± 0.66	65.70 ± 0.69	77.85 ± 0.76	77.08 ± 0.69	86.37 ± 0.02	82.35 ± 0.02
Δ	+9.89(17.61%)	+11.39(20.97%)	+4.40(5.99%)	+4.98(6.91%)	+4.35(5.30%)	+9.41(12.90%)
SAGE	Vanilla	43.18 ± 0.52	36.66 ± 1.25	68.68 ± 1.51	64.16 ± 2.38	72.36 ± 2.39	64.32 ± 2.21
Re-Weight	46.17 ± 1.32	40.13 ± 1.68	69.89 ± 1.60	65.71 ± 2.31	76.08 ± 1.14	65.76 ± 1.40
PC Softmax	50.66 ± 0.99	47.48 ± 1.66	71.49 ± 0.94	70.23 ± 0.67	74.63 ± 3.01	66.44 ± 4.04
GraphSMOTE	42.73 ± 2.87	35.18 ± 1.75	66.63 ± 0.65	61.97 ± 2.54	71.85 ± 0.98	68.92 ± 0.73
BalancedSoftmax	51.74 ± 2.32	49.01 ± 3.16	71.36 ± 1.37	69.66 ± 1.81	73.67 ± 1.11	65.23 ± 2.44
+ TAM	51.93 ± 2.19	48.67 ± 3.25	72.28 ± 1.47	71.02 ± 1.31	77.00 ± 2.93	70.85 ± 2.28
Renode	48.65 ± 1.37	44.25 ± 2.20	71.37 ± 1.33	67.78 ± 1.38	77.37 ± 0.74	68.42 ± 1.81
+ TAM	48.39 ± 1.76	43.56 ± 2.31	71.25 ± 1.07	68.69 ± 0.98	74.87 ± 2.25	66.87 ± 2.52
GraphENS	53.51 ± 0.78	51.42 ± 1.19	70.97 ± 0.78	70.00 ± 1.22	82.57 ± 0.50	71.95 ± 0.51
+ TAM	54.69 ± 1.12	53.56 ± 1.86	73.61 ± 1.35	72.50 ± 1.58	82.17 ± 0.93	72.46 ± 1.00
ReVar	60.48 ± 0.88	57.99 ± 1.54	77.72 ± 1.06	76.01 ± 1.20	83.50 ± 0.02	76.48 ± 0.05
Δ	+5.79(10.59%)	+4.53(8.46%)	+4.11(5.58%)	+3.51(4.84%)	+0.93(1.13%)	+4.02(5.55%)