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Dingyan Shang

2 papers indexed

arxivcs.LG2026-07-14

Accuracy-Preserving Stability Regularization for Large-Scale Retail Demand Forecasting

Jize Li, Jiani He, Dishu Yang, Dingyan Shang, Jingjing Liu, Shiqi Huang

Retail demand forecasts are reused across replenishment, capacity, labor, and transportation planning cycles. Point-error objectives do not constrain abrupt movement between adjacent forecasts, while post-hoc smoothing acts only after model fitting. We ask whether a training-time…

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arxivcs.AIcs.LG2026-07-06

Context-Masked Truncated Reasoning Audits for Answer-Key Dependence in LLM Tutors

Bonan Shen, Dingyan Shang, Youting Wang, Tao Ning, Bowen Liu

Large language model (LLM) tutors may have access to teacher notes, answer keys, rubrics, or retrieved solutions while producing student-facing explanations. We study whether truncated reasoning probes can distinguish direct access to such private context from answer information…

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