Download Bayesian Analysis with Python by Osvaldo Martin PDF

By Osvaldo Martin

Key Features

  • Simplify the Bayes method for fixing advanced statistical difficulties utilizing Python;
  • Tutorial advisor that would take the you thru the adventure of Bayesian research with the aid of pattern difficulties and perform exercises;
  • Learn how and while to exploit Bayesian research on your purposes with this guide.

Book Description

The function of this publication is to coach the most techniques of Bayesian info research. we'll easy methods to successfully use PyMC3, a Python library for probabilistic programming, to accomplish Bayesian parameter estimation, to examine types and validate them. This publication starts providing the major strategies of the Bayesian framework and the most benefits of this procedure from a realistic perspective. relocating on, we'll discover the ability and suppleness of generalized linear types and the way to evolve them to a big selection of difficulties, together with regression and class. we'll additionally check out blend types and clustering info, and we are going to end with complicated subject matters like non-parametrics versions and Gaussian procedures. With assistance from Python and PyMC3 you'll discover ways to enforce, cost and extend Bayesian versions to resolve info research problems.

What you are going to learn

  • Understand the necessities Bayesian techniques from a pragmatic aspect of view
  • Learn how you can construct probabilistic versions utilizing the Python library PyMC3
  • Acquire the abilities to sanity-check your types and alter them if necessary
  • Add constitution for your types and get the benefits of hierarchical models
  • Find out how varied types can be utilized to respond to diversified info research questions
  • When unsure, discover ways to choose from replacement models.
  • Predict non-stop goal results utilizing regression research or assign periods utilizing logistic and softmax regression.
  • Learn the way to imagine probabilistically and unharness the ability and adaptability of the Bayesian framework

About the Author

Osvaldo Martin is a researcher on the nationwide medical and Technical examine Council (CONICET), the most association answerable for the advertising of technology and expertise in Argentina. He has labored on structural bioinformatics and computational biology difficulties, specially on how you can validate structural protein types. He has adventure in utilizing Markov Chain Monte Carlo how to simulate molecules and likes to use Python to unravel info research difficulties. He has taught classes approximately structural bioinformatics, Python programming, and, extra lately, Bayesian information research. Python and Bayesian statistics have reworked the best way he seems to be at technological know-how and thinks approximately difficulties often. Osvaldo was once quite influenced to jot down this ebook to aid others in constructing probabilistic types with Python, despite their mathematical heritage. he's an energetic member of the PyMOL neighborhood (a C/Python-based molecular viewer), and lately he has been making small contributions to the probabilistic programming library PyMC3.

Table of Contents

  1. Thinking Probabilistically - A Bayesian Inference Primer
  2. Programming Probabilistically – A PyMC3 Primer
  3. Juggling with Multi-Parametric and Hierarchical Models
  4. Understanding and Predicting facts with Linear Regression Models
  5. Classifying results with Logistic Regression
  6. Model Comparison
  7. Mixture Models
  8. Gaussian Processes

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Extra info for Bayesian Analysis with Python

Sample text

Bayes' theorem is just a logical consequence of the rules of probability as we will see soon. Hence, another way of thinking about Bayesian statistics is as an extension of logic when dealing with uncertainty, something that clearly has nothing to do with subjective reasoning in the pejorative sense. Now that we know the Bayesian interpretation of probability, let's see some of the mathematical properties of probabilities. For a more detailed study of probability theory, you can read Introduction to probability by Joseph K Blitzstein & Jessica Hwang.

This is totally fine, priors are supposed to do this. Newcomers to Bayesian analysis (as well as detractors of this paradigm) are in general a little nervous about how to choose priors, because they do not want the prior to act as a censor that does not let the data speak for itself! That's okay, but we have to remember that data does not really speak; at best, data murmurs. Data only makes sense in the light of our models, including mathematical and mental models. There are plenty of examples in the history of science where the same data leads people to think differently about the same topics.

This is reasonable because we have been collecting data from thousands of carefully designed experiments for decades and hence we have a great amount of trustworthy prior information at our disposal. Not using it would be absurd! So the take-home message is if you have reliable prior information, there is no reason to discard that information, including the non-nonsensical argument that not using information we trust is objective. Imagine if every time an automotive engineer has to design a new car, she has to start from scratch and re-invent the combustion engine, the wheel, and for that matter, the whole concept of a car.

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