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- W4295101778 abstract "Hierarchical Bayesian models can be especially useful in precision medicine settings, where clinicians are interested in estimating the patient-level latent variables associated with an individual's current health state and its trajectory. Such models are often fit using batch Markov Chain Monte Carlo (MCMC). However, the slow speed of batch MCMC computation makes it difficult to implement in clinical settings, where immediate latent variable estimates are often desired in response to new patient data. In this report, we discuss how importance sampling (IS) can instead be used to obtain fast, in-clinic estimates of patient-level latent variables. We apply IS to the hierarchical model proposed in Coley et al (2015) for predicting an individual's underlying prostate cancer state. We find that latent variable estimates via IS can typically be obtained in 1-10 seconds per person and have high agreement with estimates coming from longer-running batch MCMC methods. Alternative options for out-of-sample fitting and online updating are also discussed." @default.
- W4295101778 created "2022-09-10" @default.
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- W4295101778 date "2015-10-29" @default.
- W4295101778 modified "2023-10-14" @default.
- W4295101778 title "Fast Out-of-Sample Predictions for Bayesian Hierarchical Models of Latent Health States" @default.
- W4295101778 doi "https://doi.org/10.48550/arxiv.1510.08802" @default.
- W4295101778 hasPublicationYear "2015" @default.
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