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9 docs tagged with "bayesian-statistics"

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Bayesian Model Comparison

Bayes factors, marginal likelihood, BIC and AIC from a Bayesian perspective, Occam's razor via model evidence, and practical model selection in ML.

Bayesian Statistics - Module Overview

How Bayesian thinking transforms ML - uncertainty quantification, priors as regularization, probabilistic programming, and principled model comparison. Module map and learning objectives.

Bayesian Updating

Sequential Bayesian updating, online learning, the Beta-Bernoulli stream, and the Kalman filter as Bayesian updating - how beliefs evolve as data arrives.

Bayesian vs Frequentist Statistics

The philosophical divide between Bayesian and frequentist probability - concrete examples, when each approach is better, and how the choice shapes ML system design.

Gaussian Processes

GP priors over functions, kernel functions (RBF, Matérn, periodic), GP regression with posterior mean and variance, hyperparameter optimization, and Bayesian optimization for ML hyperparameter tuning.

Hierarchical Models

Hierarchical Bayesian models, partial pooling, multilevel regression, and the connection to multi-task learning - sharing information across groups with sparse data.

Markov Chain Monte Carlo

Why MCMC is needed, Metropolis-Hastings algorithm, Gibbs sampling, convergence diagnostics (R-hat, trace plots), and practical Bayesian inference with PyMC.

Prior and Posterior Distributions

Choosing priors, conjugate distributions, posterior derivation via Bayes theorem, MAP estimation, and sensitivity analysis - the foundations of practical Bayesian ML.

Variational Inference

ELBO derivation, mean-field variational inference, VI vs MCMC tradeoffs, the reparameterization trick, and variational autoencoders - scalable approximate Bayesian inference.