Seungjun/Korean-Olympiad-TDCS-3K

Korean Olympiad TDCS 3K A balanced Korean Olympiad mathematics reasoning dataset derived from ChuGyouk/AI-MO-NuminaMath-CoT-Ko. Splits train: 3,000 rows (30 from every cluster × difficulty cell) validation: 300 rows (3 from every cluster × difficulty cell) Construction Filtered source: olympiads Problem embeddings: Qwen/Qwen3-Embedding-4B, 1,024 dimensions Problem-type clusters: 20 spherical k-means clusters Difficulty proxy: per-cluster… See the full description on the dataset page: https://huggingface.co/datasets/Seungjun/Korean-Olympiad-TDCS-3K.