Abstract
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.
Original language | English |
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Title of host publication | Proceedings 2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11 |
Publisher | IEEE Computer Society |
Pages | 170-173 |
Number of pages | 4 |
ISBN (Print) | 9781467304900 |
DOIs | |
Publication status | Published - 2011 |
Externally published | Yes |
Event | 2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11 - San Antonio, TX, United States Duration: 4 Dec 2011 → 6 Dec 2011 |
Publication series
Name | Proceedings - IEEE International Workshop on Genomic Signal Processing and Statistics |
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ISSN (Print) | 2150-3001 |
ISSN (Electronic) | 2150-301X |
Conference
Conference | 2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11 |
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Country/Territory | United States |
City | San Antonio, TX |
Period | 4/12/11 → 6/12/11 |
Keywords
- Beta mixture model
- DNA methylation microarray
- Dirichlet process mixture (DPM)
- Gibbs sampling
Cite this
Zhang, L., Meng, J., Liu, H., & Huang, Y. (2011). Clustering DNA methylation expressions using nonparametric beta mixture model. In Proceedings 2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11 (pp. 170-173). Article 6169472 (Proceedings - IEEE International Workshop on Genomic Signal Processing and Statistics). IEEE Computer Society. https://doi.org/10.1109/gensips.2011.6169472