Author

Bing-Qi Shang

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#machine learning Preprint Sep 2026

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

Machine unlearning aims to remove the influence of designated training data while preserving model utility, but its behavior on tabular data remains underexplored. This gap is important because tabular prediction is widely used in high-stakes domains and is increasingly adapted to language models through record seriali...

Zijie 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