Bayesian Networks 2 - Definition | Stanford CS221: AI (Autumn 2021)

For more information about Stanford's Artificial Intelligence professional and graduate programs visit: https://stanford.io/ai Associate Professor Percy Liang Associate Professor of Computer Science and Statistics (courtesy) https://profiles.stanford.edu/percy-liang Assistant Professor Dorsa Sadigh Assistant Professor in the Computer Science Department & Electrical Engineering Department https://profiles.stanford.edu/dorsa-sadigh To follow along with the course schedule and syllabus, visit: https://stanford-cs221.github.io/autumn2021/#schedule 0:00 Introduction 0:06 Bayesian networks: definitions 0:15 Review: probability 5:38 A puzzle 8:00 Bayesian network (alarm) 12:10 Probabilistic inference (alarm) 18:03 Explaining away 19:55 Medical diagnosis 24:54 Bayesian network (definition) 25:58 Probabilistic inference (definition) 27:24 Summary