Estimating parameters of continuous-time multi-chain hidden Markov models for infectious diseases
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866917638027870208 |
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| author | Bouzalmat, Ibrahim de Saporta, Benoîte Manou-Abi, Solym M. |
| author_facet | Bouzalmat, Ibrahim de Saporta, Benoîte Manou-Abi, Solym M. |
| contents | This study aims to estimate the parameters of a stochastic exposed-infected epidemiological model for the transmission dynamics of notifiable infectious diseases, based on observations related to isolated cases counts only. We use the setting of hidden multi-chain Markov models and adapt the Baum-Welch algorithm to the special structure of the multi-chain. From the estimated transition matrix, we retrieve the parameters of interest (contamination rates, incubation rate, and isolation rate) from analytical expressions of the moments and Monte Carlo simulations. The performance of this approach is investigated on synthetic data, together with an analysis of the impact of using a model with one less compartment to fit the data in order to help for model selection. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_18875 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Estimating parameters of continuous-time multi-chain hidden Markov models for infectious diseases Bouzalmat, Ibrahim de Saporta, Benoîte Manou-Abi, Solym M. Applications Probability This study aims to estimate the parameters of a stochastic exposed-infected epidemiological model for the transmission dynamics of notifiable infectious diseases, based on observations related to isolated cases counts only. We use the setting of hidden multi-chain Markov models and adapt the Baum-Welch algorithm to the special structure of the multi-chain. From the estimated transition matrix, we retrieve the parameters of interest (contamination rates, incubation rate, and isolation rate) from analytical expressions of the moments and Monte Carlo simulations. The performance of this approach is investigated on synthetic data, together with an analysis of the impact of using a model with one less compartment to fit the data in order to help for model selection. |
| title | Estimating parameters of continuous-time multi-chain hidden Markov models for infectious diseases |
| topic | Applications Probability |
| url | https://arxiv.org/abs/2403.18875 |