Exploring heterogeneity in tumour data using Markov chain Monte Carlo.
Exploring heterogeneity in tumour data using Markov chain Monte Carlo.
复制标题
使用马尔可夫链蒙特卡罗探索肿瘤数据的异质性。
DOI:
10.1002/sim.1441
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Luebeck,EGeorg
中科院分区:
文献类型:
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作者:
deGunst,MathiscaCM;Dewanji,Anup;Luebeck,EGeorg
We describe a Bayesian approach to incorporate between‐individual heterogeneity associated with parameters of complicated biological models. We emphasize the use of the Markov chain Monte Carlo (MCMC) method in this context and demonstrate the implementation and use of MCMC by analysis of simulated overdispersed Poisson counts and by analysis of an experimental data set on preneoplastic liver lesions (their number and sizes) in the presence of heterogeneity. These examples show that MCMC‐based estimates, derived from the posterior distribution with uniform priors, may agree well with maximum likelihood estimates (if available). However, with heterogeneous parameters, maximum likelihood estimates can be difficult to obtain, involving many integrations. In this case, the MCMC method offers substantial computational advantages. Copyright © 2003 John Wiley & Sons, Ltd.
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DOI:
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发表时间:
2006
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通讯作者:
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发表时间:
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发表时间:
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DOI:
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发表时间:
1992
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