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1 results

  • 1 - Probabilistic Modeling and Inference

  • from Part I - Concepts from Modeling, Inference, and Computing
  • Steve Pressé, Arizona State University, Ioannis Sgouralis, University of Tennessee, Knoxville
  • Book:
    Data Modeling for the Sciences
    Published online:
    17 August 2023
    Print publication:
    31 August 2023, pp 3-39
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  • Summary

    In this chapter we provide an overview of data modeling and describe the formulation of probabilistic models. We introduce random variables, their probability distributions, associated probability densities, examples of common densities, and the fundamental theorem of simulation to draw samples from discrete or continuous probability distributions. We then present the mathematical machinery required in describing and handling probabilistic models, including models with complex variable dependencies. In doing so, we introduce the concepts of joint, conditional, and marginal probability distributions, marginalization, and ancestral sampling.