noun
unsupervised learning
A machine learning approach where the model learns patterns from unlabeled data without explicit guidance.
教師なし学習は、ラベルのないデータからパターンを見つける手法です。
Unsupervised learning is a method for finding patterns from unlabeled data.
Compound of 教師 (teacher) + なし (without) + 学習 (learning), calque of English 'unsupervised learning'.