Mitigating Keyword Bias in Java Vulnerability Detection through Dual-Stream CodeBERT with Security Feature Engineering
A dual-stream CodeBERT architecture is presented that addresses keyword bias —by combining pre-trained Transformer representations with a 50-dimensional hand-engineered security feature vector, supported by targeted data augmentation and two-stage adversarial fine-tuning.
Arjun Khurana, Talaya Farasat, Joachim Posegga et al.
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