Dongxin Liu
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126
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Crypto×1Software Eng.×1
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2026
How Code Representation Shapes False-Positive Dynamics in Cross-Language LLM Vulnerability Detection
The paper demonstrates that using raw source text for fine-tuning LLMs on vulnerability detection causes high false-positive rates by memorizing surface-level syntax, a problem mitigated by using Abstract Syntax Trees (ASTs) during inference.
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cs.CRcs.SERecentApr 30, 2026
How Code Representation Shapes False-Positive Dynamics in Cross-Language LLM Vulnerability Detection
Maofei Chen, Laifu Wang, Yue Qin, Yuan Wang +2 more
The paper demonstrates that using raw source text for fine-tuning LLMs on vulnerability detection causes high false-positive rates by memorizing surface-level syntax, a problem mitigated by using Abst…
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