unsupervised clustering uncertainty methylation gaussian expectation-maximization parameter-estimation unsupervised-learning probes em mixture-model propagation mixture-modeling methylation-microarrays principal-component-analysis loci affinity unsupervised-machine-learning affinity-propagation cpgs

dna-methylation smoking cpgs tobacco quantitative-trait-loci atherosclerotic-carotid-lesions atherosclerotic-plaques methylated-cpgs carotid-plaques