[Retracted] SFN: A Novel Scalable Feature Network for Vulnerability Representation of Open-Source Codes

Table 11

Control variable experiment and feature extraction model structure.

Type	Metric granularity	Feature extraction model structure
Type-1	Line	CNN
Type-2	Function	CNN
Type-3	Semantic	Bi-LSTM
Type-4	Line + function	CNN + CNN
Type-5	Semantic + line	Bi-LSTM + CNN
Type-6	Semantic + function	Bi-LSTM + CNN
Type-7	Semantic + line + function	Bi-LSTM + CNN + CNN