arXiv Computation and Language By Jiashu Yang, Ningning Wang, Yian Zhao, Chaoran Feng, Junjia Du, Hao Pang, Miao Yu, Xuxin Cheng

Kongzi: A Historical Large Language Model with Fact Enhancement

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Kongzi is a historical large language model that enhances factual accuracy through continued pre‑training on historical corpora, supervised fine‑tuning, and fact‑enhanced reinforcement learning. Its reward system compares entities and relations in generated responses with historical references via knowledge‑graph similarity. Evaluations on 0.5B and 7B models show that Kongzi‑7B achieves the highest historical‑accuracy ratings among compared models and that reinforcement learning improves answer scores and CMMLU‑Chinese‑History accuracy, though it still falls short of the strongest baselines.

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