Ziqi Shu, Shuman Wang, Michael Hardy. Measuring Optimal Challenge: Trajectory-Based Difficulty Alignment in Open-Ended Language Tutoring. In Ekaterina Kochmar, Bashar Alhafni, Stefano Bannò, Marie Bexte, Jill Burstein, Andrea Horbach, Ronja Laarmann-Quante, Anais Tack, Victoria Yaneva, Zheng Yuan 0003, editors, Proceedings of the 21st Workshop on Innovative Use of NLP for Building Educational Applications, BEA 2026, San Diego, California, USA, July 3-4, 2026. pages 651-667, Association for Computational Linguistics, 2026. [doi]
Abstract is missing.