arXiv:2605. 14257v1 Announce Type: new Abstract: We describe two types of models for vocabulary difficulty prediction: a high-accuracy black-box model, which achieved the top shared task result in the open track, and an explainable model, which outperforms a fine-tuned encoder baseline.
Paper
What Makes Words Hard? Sakura at BEA 2026 Shared Task on Vocabulary Difficulty Prediction
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