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Yiding Sun

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#natural language process... Preprint Aug 2026

When Self-Evolution Backfires: Pre-Commit Gating against Skill Contamination in LLM Agents

It is shown the contamination is structurally irreversible: removing a source skill after the fact cannot erase the flawed reasoning its descendants have already inherited, so post-hoc rollback recovers only a small fraction of the lost performance, making skill admission a pre-commit necessity rather than a post-hoc fix.

Lin-Fang Shang, Ming Xu, Yi-Ding Sun et al. · 1 citation
Jul 2026

SPARK: Susceptibility-Guided Profiling and Steering of Latent Reasoning States in Large Language Models

SPARK is introduced, which uses hidden-state response to diagnose whether a model internally enters an effective reasoning state and to guide lightweight test-time steering, and suggests that susceptibility can serve not only as a diagnostic signal for reasoning failures, but also as a practical guide for targeted test-time intervention.

Dongxu Zhang, Yiding Sun, Zihao Guo et al. · 0 citations
Jul 2026

Better Starts, Better Ends: Bootstrapped Iterative Self-Reasoning Distillation for Compressed Reasoning

BIRD(Bootstrapped Iterative Self-Reasoning Distillation), a two-stage self-reasoning distillation method that improves the rollout distribution before on-policy training and achieves a stronger accuracy-efficiency trade-off than prompting and cold-start on-policy distillation on MATH-500 and AIME benchmarks.

Leichao Dong, Dong-Xu Zhang, Yi-Ding Sun et al. · 0 citations
Preprint Jul 2026

SeeMe: Mitigating Hallucinations in Large Vision-Language Models through Effective Visual Token Engineering

SeeMe is proposed, a training-free framework that introduces the concept of feature engineering from traditional machine learning into LVLMs and restructures visual tokens through a three-stage token engineering process to suppress hallucination sources while preserving informative visual evidence.

Kai Tang, Jinhao You, Bohua Zhang et al. · 2 citations

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