HGVul: A Code Vulnerability Detection Method Based on Heterogeneous Source-Level Intermediate Representation

Table 8

Performance of the heterogeneous IR. Performance of the heterogeneous IR on Big-Vul-VP (%).

Method	Acc		Recall	F1	FNR	FPR
GAT-AST+	91.8	92.3	92.1	92.2	7.9	8.4
GAT-CPG+	93.9	94.4	93.9	94.2	6.1	6.1
HG-AST+	94.2	94	95	94.5	5.0	6.7
HG-CPG+ (ours)	95.9	96.2	96.1	96.1	3.9	4.3