5. Unsupervised learning is a type of algorithm that learns patterns from untagged data. Which of the following learning techniques is an unsupervised learning technique?
(A) Decision tree
(B) K-means clustering
(C) Support vector machine
(D) k-NN
(E) Random Forest

答案：登入後查看
統計： A(2), B(5), C(1), D(1), E(2) #2911443