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Xuan-Kun Rong

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#machine learning Preprint Sep 2026

MetaRSI / RSI2: A Meta-Recursive Self-Improving System for Recursive Self-Improving Systems Themselves

Recursive self-improvement (RSI) lets a system improve the model-building machinery from its own failures, so every later model inherits the gain. Yet RSI has been validated almost exclusively on coding and formal benchmarks such as science QA and mathematics. This format bound limits RSI to improvement within a machin...

Zi-Hang Tan, Lei-Xin Sun, Zi-Tong Shi et al. · 0 citations
Jul 2026

Behavioural Signatures of Risk-Sensitive Decision-Making in Large Language Models

It is suggested that LLMs differ not only in baseline risk disposition, but also in the risk signals they respond to and the flexibility with which they adjust, providing a behavioural basis for auditing risk-sensitive decision-making in interactive settings.

Xuan-Kun Rong, Wenke Huang, Bo Du et al. · 0 citations
Jul 2026

Do LLMs Know Their Vulnerable Scenarios?

This work shows that scenario-wrapped prompts activate internal scenario directions whose causal steering consistently reduces refusal scores, and proposes Concept2Scenario, a concept-based attribution framework for vulnerable scenario discovery that instantiates a broad concept space with a sparse autoencoder, transla...

Ziheng Peng, Huiqi Deng, Haoran Jing et al. · 0 citations
Preprint Aug 2026

ReFrame: Evidence-Guided Test-Time Safety Alignment in Multimodal Large Language Models

ReFrame is a training-free multimodal input reframing framework where two agents share a lightweight locally deployed MLLM: the evidence-generation agent constructs complementary risk and utility evidence, and the rewrite-and-routing agent converts it into a safe proxy prompt and image-routing decision before calling t...

Wenzheng Jiang, Xuan-Kun Rong, Yuan-Zhao Zhai et al. · 0 citations

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