Metropolis-Hastings Acceptance Ratio
The ratio [p(x')q(x|x')]/[p(x)q(x'|x)] compares target density at the proposal against the current point, corrected for proposal asymmetry; computed in log space for numerical stability, and normalizing constants cancel in the ratio.
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The ratio [p(x')q(x|x')]/[p(x)q(x'|x)] compares target density at the proposal against the current point, corrected for proposal asymmetry; computed in log space for numerical stability, and normalizing constants cancel in the ratio.
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