Computational Probability and Inference free videos and free material uploaded by Massachusetts Institute of Technology Staff .
Week 1: Introduction to probability and computation
A first look at basic discrete probability, how to interpret it, what probability spaces and random variables are, and how to code these up and do basic simulations and visualizations.
Week 2: Incorporating observations
Incorporating observations using jointly distributed random variables and using events. Three classic probability puzzles are presented to help elucidate how to interpret probability: Simpson’s paradox, Monty Hall, boy or girl paradox.
Week 3: Introduction to inference, and to structure in distributions
The product rule and inference with Bayes' theorem. Independence-A structure in distributions. Measures of randomness: entropy and information divergence. Mini-project: movie recommendations.
Week 4: Expectations, and driving to infinity in modeling uncertainty Expected values of random variables. Classic puzzle: the two envelope problem. Probability spaces and random variables that take on a countably infinite number of values and inference with these random variables.
Week 5: Efficient representations of probability distributions on a computer Introduction to undirected graphical models as a data structure for representing probability distributions and the benefits/drawbacks of these graphical models. Incorporating observations with graphical models.
Week 6: Inference with graphical models, part I Computing marginal distributions with graphical models in undirected graphical models including hidden Markov models. Mini-project: robot localization, part I.
Week 7: Inference with graphical models, part II Computing most probable configurations with graphical models including hidden Markov models. Mini-project: robot localization, part II.
Week 8: Introduction to learning probability distributions
Learning an underlying unknown probability distribution from observations using maximum likelihood. Three examples: estimating the bias of a coin, the German tank problem, and email spam detection.
Week 9: Parameter estimation in graphical models Given the graph structure of an undirected graphical model, we examine how to estimate all the tables associated with the graphical model.
Week 10: Model selection with information theory Learning both the graph structure and the tables of an undirected graphical model with the help of information theory. Mutual information of random variables.
Week 11: Final project part I Mystery project
Week 12: Final project part II Mystery project, cont’d
Probability and inference are used everywhere. For example, they help us figure out which of your emails are spam, what results to show you when you search on Google, how a self-driving car should navigate its environment, or even how a computer can beat the best Jeopardy and Go players! What do all of these examples have in common? They are all situations in which a computer program can carry out inferences in the face of uncertainty at a speed and accuracy that far exceed what we could do in our heads or on a piece of paper.
In this data analysis and computer programming course, you will learn the principles of probability and inference. We will put these mathematical concepts to work in code that solves problems people care about. You will learn about different data structures for storing probability distributions, such as probabilistic graphical models, and build efficient algorithms for reasoning with these data structures.
By the end of this course, you will know how to model real-world problems with probability, and how to use the resulting models for inference.
You don’t need to have prior experience in either probability or inference, but you should be comfortable with basic Python programming and calculus.
“I love that you can do so much with the material, from programming a robot to move in an unfamiliar environment, to segmenting foreground/background of an image, to classifying tweets on Twitter—all homework examples taken from the class!” – Previous Student in the residential version of this new online course.
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