2.4 AIAI——2.4 “” AIQ-learningSARSAAIAI AI“”—— “CG” “”AI “”“” “”“” ——“” 2.4.1 Semi-Supervised LearningSSL“” 2.4.2 Self-Training/Co-Training 2. 4. 2-4 “” “”view 2. “” Generative Models $P(X, Y)$ $X$ $Y$ Gaussian Mixture Models, GMMNaive Bayes GMM Graph-Based Methods Label PropagationGraph-based Semi-Supervised SVMs Manifold Regularization