Lab 5: Bayesin Inference & Non-linear Models

(github)

Start Sept 21 –- Due Sept 26

Goals

In this lab, students will learn to:

  • Characterize the mass and orbit of an exoplanet using radial velocity observations

  • Build a Bayesian model for astronomical observations

  • Specify a prior and likelihood using a probabilistic programming language

  • Perform posterior sampling

  • Qualitatively evaluate the convergence of Markov chains

  • Use an approximate model to assist with global search over a multi-modal parameter space

  • Assess the sensitivity of inferential results to the choice of prior & likelihood

Students will strengthen their understanding of:

  • Assessing models

  • Evaluating the sensitivity of results to choice of priors and likelihood.

  • Evaluating the effects of model misspecification

Logistics

Follow this link to create your own private copy of this lab's repository on GitHub.com. See the help on the course website for instructions on getting setup to use ACI, cloning, committing, pushing and submitting your work.

Resources