Subfields of artificial intelligence:

• Perception
• Machine learning (ML)
  • Deep learning (DL) : Using multi-layered non-linear function approximation, typically neural networks.
• Expert systems
• Planning
• Natural language processing
• Computer vision
• Robotics
• Search
• Logic

There are three main branches of ML:

• Supervised learning (SL)
• Unsupervised learning (UL)
• Reinforcement learning (RL)
  • Deep reinforcement learning (DRL) is the intersection of reinforcement learning and deep learning.