Hidden Markov Models With Applications in Cell Adhesion Experiments

Ying Hung, Yijie Wang, Veronika Zarnitsyna, Cheng Zhu and C. F. Jeff Wu

Journal of the American Statistical Association, 2013, vol. 108, issue 504, 1469-1479

Abstract: Estimation of the number of hidden states is challenging in hidden Markov models. Motivated by the analysis of a specific type of cell adhesion experiments, a new framework based on a hidden Markov model and double penalized order selection is proposed. The order selection procedure is shown to be consistent in estimating the number of states. A modified expectation--maximization algorithm is introduced to efficiently estimate parameters in the model. Simulations show that the proposed framework outperforms existing methods. Applications of the proposed methodology to real data demonstrate the accuracy of estimating receptor--ligand bond lifetimes and waiting times which are essential in kinetic parameter estimation. Supplementary materials for this article are available online.

Date: 2013
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Citations: View citations in EconPapers (4)

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DOI: 10.1080/01621459.2013.836973

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