Authors

Feng He

Publications 2

Preprint Open access

PHRBench: A Behavioral Evaluation of Post-Hallucination Reasoning in LLMs

Linghao Meng, Feng He, Xuan Yang et al. · 2026

Hallucinated information can propagate through multi-stage LLM systems and become part of the context for subsequent reasoning. Existing studies of post-hallucination reasoning (PHR) mainly characterize changes in final outcomes and aggregate reasoning dynamics, leaving how models resolve hallucinated premises at the r …

Preprint Open access

Verification Trap: Understanding Test-Time Selection Failures under False Premises in Code Generation

Feng He, Hejia Wang, Linghao Meng et al. · 2026

Test-time compute has become a central way to improve code generation: systems sample multiple candidate programs and use verifier-visible evidence to select the final output. This paradigm implicitly assumes that the verifier provides a corrective signal independent from the generator. We challenge this assumption und …

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