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| Title | Adaptive estimation of hidden nearly completely decomposable Markov chains |
| Publication Type | Conference Paper |
| Year of Publication | 1994 |
| Authors | Krishnamurthy, V. |
| Conference Name | Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on |
| Pagination | IV/337 -IV/340 vol.4 |
| Date Published | apr. |
| Keywords | adaptive equalisers, adaptive estimation, adaptive signal processing, aggregation techniques, computational costs, estimation algorithms, expectation maximization algorithm, FIR filters, Gaussian noise, hidden Markov model, hidden Markov models, hidden nearly completely decomposable Markov chains, maximum likelihood estimation, maximum-likelihood estimation schemes, optimisation, state estimation, stochastic complementation, white Gaussian noise, white noise |
| Abstract | We propose maximum-likelihood (ML) estimation schemes for nearly completely decomposable Markov chains (NCDMC) in white Gaussian noise. Aggregation techniques based on stochastic complementation are applied to reduce the dimension of the resulting hidden Markov model (HMM) and hence substantially reduce the computational costs of the estimation algorithms. We then present an aggregation based expectation maximization (EM) algorithm for estimating the parameters and states of the HMM |
| URL | http://dx.doi.org/10.1109/ICASSP.1994.389811 |
| DOI | 10.1109/ICASSP.1994.389811 |