Authors

Lei Zheng

Publications 2

Preprint Open access

CrystalJev: thinking fast and slow with atomistic foundation models for materials discovery

Peng Kang, Zhen Li, Yu Liu et al. · 2026

Atomistic foundation models triage millions of hypothetical materials but are used as slow simulators, their thresholded energies taken at face value. They are better read as fast decision-makers. CrystalJev queries a frozen interatomic potential once per unrelaxed structure and answers typed questions with calibrated …

Preprint Open access

Beyond Accuracy: How Procedural Traces Shift the Decision Criterion of LLM Overseers

Zihan Chen, Di Zhu, Lei Zheng et al. · 2026

Organizations increasingly use oversight loops where one large language model (LLM) audits another's outputs alongside procedural traces of claimed steps. A common concern about such LLM-as-a-judge pipelines is that detailed traces make overseers gullible. Using signal detection theory, we audit five LLM overseers on 1 …

Co-authors

Peng Kang Zhen Li Yu Liu Huibin Xu Zihan Chen Di Zhu Weiling Li