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Xingzhang Ren

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#artificial intelligence Preprint Sep 2026

The Imitation Game: When LLMs Learn to Reason Like Programs via Code-Centric Reasoning Data Synthesis

Large Language Models (LLMs) excel at programming tasks but frequently fail at deterministic, fine-grained reasoning in natural language, relying heavily on semantic approximations rather than robust symbolic execution. To bridge this gap, we propose MIMIC, a framework that leverages executable code as a rigorous mediu...

Jin-Yang Zhang, Wei-Bin Liao, Ke-Qin Bao et al. · 0 citations
#natural language process... Preprint Aug 2026

Can Released LLM Vocabularies Support Token-Level Estimation of Hidden Corpora?

Quantile-Guided Density Estimation (QGDE), which approximates this distribution with multiple quantile trends and uses local density weighting to produce token-level estimates and suggests that released tokenizer vocabularies provide a useful signal for fine-grained corpus estimation beyond coarse composition inference...

Qingjie Zhang, Xing-Zhang Ren, Zi-Xuan Chen et al. · 0 citations

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