Author

Jinsung Yoon

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#natural language process... Preprint Oct 2026

TutorCaseBench: A Case-Grounded Benchmark for Evaluating LLM Tutors in Supporting Students with Challenging Behaviors

TutorCaseBench is introduced, a benchmark that grounds AI-tutor evaluation in qualitative case studies from pedagogy, educational psychology, and special education, and reveals a gap between intervention recognition and context-specific adaptation, especially for open-weight models.

Y. Park, Chanyoung Park, Tae Soo Kim et al. · 0 citations

Preprint Aug 2026

Reason in the Words You Speak: Idiolectal Paraphrasing Off-Policy Traces for Reasoning Distillation in VideoLLMs

Echo-GRPO is proposed, a framework that lets the model reason in the words it speaks, and idiolectal paraphrasing is a plug-in module that consistently improves both RL and supervised fine-tuning frameworks for reasoning distillation, demonstrating that policy-aligned supervision extends beyond GRPO.

Ji Soo Lee, Jinyoung Park, Seohyun Lee et al. · 0 citations