TY - GEN
T1 - Clustering DNA methylation expressions using nonparametric beta mixture model
AU - Zhang, Lin
AU - Meng, Jia
AU - Liu, Hui
AU - Huang, Yufei
PY - 2011
Y1 - 2011
N2 - The problem of defining the clustering structure in DNA methylation expressions is considered. A Dirichlet process beta mixture model (DPBMM) is proposed that models the DNA methylation data array. The model allows automatic learning of the cluster structure parameters such as the cluster mixing proportion, the models of each cluster, and especially the number of clusters. To enable the learning, we proposed a Gibbs sampling algorithm for computing the posterior distributions, hence the estimates of the parameters. We investigate the performance of the proposed clustering algorithm via simulation.
AB - The problem of defining the clustering structure in DNA methylation expressions is considered. A Dirichlet process beta mixture model (DPBMM) is proposed that models the DNA methylation data array. The model allows automatic learning of the cluster structure parameters such as the cluster mixing proportion, the models of each cluster, and especially the number of clusters. To enable the learning, we proposed a Gibbs sampling algorithm for computing the posterior distributions, hence the estimates of the parameters. We investigate the performance of the proposed clustering algorithm via simulation.
KW - Beta mixture model
KW - DNA methylation microarray
KW - Dirichlet process mixture (DPM)
KW - Gibbs sampling
UR - http://www.scopus.com/inward/record.url?scp=84863681549&partnerID=8YFLogxK
U2 - 10.1109/gensips.2011.6169472
DO - 10.1109/gensips.2011.6169472
M3 - Conference Proceeding
AN - SCOPUS:84863681549
SN - 9781467304900
T3 - Proceedings - IEEE International Workshop on Genomic Signal Processing and Statistics
SP - 170
EP - 173
BT - Proceedings 2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11
PB - IEEE Computer Society
T2 - 2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11
Y2 - 4 December 2011 through 6 December 2011
ER -