Author

Ya-Pei Chang

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#artificial intelligence Preprint Sep 2026

PivotOPD: Learning to Recover from Pivotal Mistakes in Multi-Turn Agents

PivotOPD, an on-policy distillation framework that jointly trains the student to prevent pivotal mistakes and to recover from the states they create, achieves the strongest average performance for both Qwen3-1.7B and Qwen3-8B students, and transfers to another model family on the software engineering domain.

Ying-Hui He, Ya-Pei Chang, Khushi Bhardwaj et al. · 0 citations

#artificial intelligence Review Jun 2026

Argument Collapse: LLMs Flatten Long-Form Public Debate

As LLMs are increasingly used to draft publicfacing arguments, they may flatten public debate by repeatedly introducing the same polished, plausible arguments. We study argument collapse, the tendency of essays generated by different LLMs to converge to a smaller set of main arguments, sub-arguments, and paragraph-leve...

Yekyung Kim, Ya-Pei Chang, Chau Minh Pham et al. · arXiv.org · 0 citations