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Pengcheng Jiang

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#machine learning Preprint Sep 2026

Steering Language Model Goals with Value Transplant

Reasoning models often act as if they pursue goals, but their efforts are not always directed toward what users intend, sometimes leading them to pursue unintended outcomes. Previous work has examined how models may internally track their progress toward their goals through a"value axis."We study whether changing such...

Peng-Cheng Jiang, Fabien Roger · 0 citations
Book Open access Aug 2026

Structure Shapes the Future of DataxLLM Systems: Retrieval, Structuring, and Reasoning

This tutorial presents a unified vision in which structuring serves as the enabling foundation for three pillars of next-generation LLM systems, highlighting how the cooperative interplay between classical KDD techniques and modern LLMs-where KDD defines structural schemas and quality constraints while LLMs execute fle...

Peng-Cheng Jiang, Jiashuo Sun, Wonbin Kweon et al. · 0 citations
Book Open access Aug 2026

Structure Shapes the Future of DataxLLM Systems: Retrieval, Structuring, and Reasoning

This tutorial presents a unified vision in which structuring serves as the enabling foundation for three pillars of next-generation LLM systems, highlighting how the cooperative interplay between classical KDD techniques and modern LLMs-where KDD defines structural schemas and quality constraints while LLMs execute fle...

Pengcheng Jiang, Jiashuo Sun, Wonbin Kweon et al. · 0 citations

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