Author

Hyeok‐Min Gwon

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Preprint Oct 2026

MisconceptDialogue: Evaluation Criteria Shape Measured Success in LLM Math Tutoring

Large language models are increasingly used as math tutors, raising two questions: can a single LLM detect a student's error, diagnose the underlying misconception, and remediate it through multi-turn dialogue - and can we trust the numbers that report how well it does? We address both with MISCONCEPTDIALOGUE, a fully...

Woo-Jin Lee, Yoonkyu Woo, Jinah Kim et al. · 0 citations

Open access Jul 2026

Evaluating reinforcement learning from human feedback for task‐oriented dialogue systems

Experiments on MultiWOZ 2.1 show that the proposed RLHF approach consistently improves corpus‐based evaluation over supervised baselines, while simulator‐based effects remain mixed and backbone‐dependent.

Hyeok‐Min Gwon, Yohan Lee, Jin-Xia Huang et al. · ETRI Journal · 0 citations