NCV: A Node-Wise Consistency Verification Approach for Low-Cost Structured Error Localization in LLM Reasoning. - Yulong Zhang; Li Wang; Wei Du; Peilin Li; Yuqin Dai Zhiyuan Zhao; Lingyong Fang; Ziniu Liu; Ru Zhang; Huijia Zhu; Gongshen Liu (CoRR, 2025)