9780133902839
Bayesian Methods for Hackers: Probabilistic Programming and Bayesian Inference (AddisonWesley Data & Analytics)
By 作者: Cameron DavidsonPilon
ISBN10 书号: 0133902838
ISBN13 书号: 9780133902839
Edition 版本: 1
Release Finelybook 出版日期: 20151012
Pages 页数: 256
Master Bayesian Inference through Practical Examples and Computation–Without Advanced Mathematical Analysis
Bayesian methods of inference are deeply natural and extremely powerful. However, most discussions of Bayesian inference rely on intensely complex mathematical analyses and artificial examples, making it inaccessible to anyone without a strong mathematical background. Now, though, Cameron DavidsonPilon introduces Bayesian inference from a computational perspective, bridging theory to practice–freeing you to get results using computing power.
Bayesian Methods for Hackers illuminates Bayesian inference through probabilistic programming with the powerful PyMC language and the closely related Python tools NumPy, SciPy, and Matplotlib. Using this approach, you can reach effective solutions in small increments, without extensive mathematical intervention.
DavidsonPilon begins by introducing the concepts underlying Bayesian inference, comparing it with other techniques and guiding you through building and training your first Bayesian model. Next, he introduces PyMC through a series of detailed examples and intuitive explanations that have been refined after extensive user feedback. You’ll learn how to use the Markov Chain Monte Carlo algorithm, choose appropriate sample sizes and priors, work with loss functions, and apply Bayesian inference in domains ranging from finance to marketing. Once you’ve mastered these techniques, you’ll constantly turn to this guide for the working PyMC code you need to jumpstart future projects.
Coverage includes

Learning the Bayesian “state of mind” and its practical implications
Understanding how computers perform Bayesian inference
Using the PyMC Python library to program Bayesian analyses
Building and debugging models with PyMC
Testing your model’s “goodness of fit”
Opening the “black box” of the Markov Chain Monte Carlo algorithm to see how and why it works
Leveraging the power of the “Law of Large Numbers”
Mastering key concepts, such as clustering, convergence, autocorrelation, and thinning
Using loss functions to measure an estimate’s weaknesses based on your goals and desired outcomes
Selecting appropriate priors and understanding how their influence changes with dataset size
Overcoming the “exploration versus exploitation” dilemma: deciding when “pretty good” is good enough
Using Bayesian inference to improve A/B testing
Solving data science problems when only small amounts of data are available
Cameron DavidsonPilon has worked in many areas of applied mathematics, from the evolutionary dynamics of genes and diseases to stochastic modeling of financial prices. His contributions to the open source community include lifelines, an implementation of survival analysis in Python. Educated at the University of Waterloo and at the Independent University of Moscow, he currently works with the online commerce leader Shopify.
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