Information Theory, Inference, and Learning ... - Inference Group

Copyright Cambridge University Press 2003. On-screen viewing permitted. Printing not permitted. http://www.cambridge.org/0521642981You can buy this book for 30 pounds or $50. See http://www.inference.phy.cam.ac.uk/mackay/itila/ for links.416 32 — Exact Monte Carlo Sampling000000-50-50-50-50-50-50-100-100-100-100-100-100-150-150-150-150-150-150-200-200-200-200-200-200-250-250-2500 10 20 0 10 20 0 10 20-250-250-2500 10 20 0 10 20 0 10 20T 0 = −50 T 0 = −100 T 0 = −200 T 0 = −50 T 0 = −100 T 0 = −200(a)(b)Figure 32.2. ‘Coupling from the past’, the second idea behind the exact sampling method.