Author

Bing-Qi Shang

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#machine learning Preprint Sep 2026

When Retain Constraints Conflict: Mitigating Forget-Retain Interference in Tabular Data

The results show that reliable tabular LLM unlearning depends not only on the forgetting objective, but also on how retain constraints are constructed, which shows that reliable tabular LLM unlearning depends not only on the forgetting objective, but also on how retain constraints are constructed.

Zi-Jie Liu, Jinhao Duan, Bing-Qi Shang et al. · 0 citations

Preprint Aug 2026

Who Built This Model? Tracing LLM Lineage via Spectral Fingerprints in Weight Space

This work investigates the notion of LLM"biometrics" to ask whether LLMs exhibit intrinsic fingerprints in weight space alone, without access to input data, that reveal their origin and lineage, and proposes a unified geometric fingerprinting framework that analyzes weight matrices from two complementary perspectives.

Yiwei Chen, Bing-Qi Shang, Sijia Liu · 0 citations