Subsample distribution distance and McMC convergence
2005 (English)In: Scandinavian Journal of Statistics, ISSN 0303-6898, E-ISSN 1467-9469, Vol. 32, no 2, 313-326 p.Article in journal (Refereed) Published
A new measure based on comparison of empirical distributions for sub sequences or parallel runs and the full sequence of Markov chain Monte Carlo simulations, is proposed as a criterion of stability or convergence. The measure is also put forward as a loss function when the design of a Markov chain is optimized. The comparison is based on a Kullback–Leibler (KL) type distance over value sets defined by the output data.
The leading term in a series expansion gives an interpretation in terms of the relative uncertainty of cell frequencies. The validity of this term is studied by simulation in two analytically tractable cases with Markov dependency. The agreement between the leading term and the KL-measure is close, in particular when the simulations are extensive enough for stable results. Comparisons with established criteria turn out favourably in examples studied.
Place, publisher, year, edition, pages
2005. Vol. 32, no 2, 313-326 p.
convergence diagnostics, Kullback–Leibler distance, Markov chain Monte Carlo simulation, parallel chains, proposal distribution, single chain
IdentifiersURN: urn:nbn:se:liu:diva-28432DOI: 10.1111/j.1467-9469.2005.00424.xLocal ID: 13572OAI: oai:DiVA.org:liu-28432DiVA: diva2:249240