Browsing NTNU Open by Author "Luo, Xin"
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A Bayesian model for lithology/fluid class prediction using a Markov mesh prior fitted from a training image
Tjelmeland, Håkon; Luo, Xin; Fjeldstad, Torstein Mæland (Journal article; Peer reviewed, 2019)We consider a Bayesian model for inversion of observed amplitude variation with offset data into lithology/fluid classes, and study in particular how the choice of prior distribution for the lithology/fluid classes influences ... -
A multiple-try Metropolis–Hastings algorithm with tailored proposals
Luo, Xin; Tjelmeland, Håkon (Journal article; Peer reviewed, 2019)We present a new multiple-try Metropolis–Hastings algorithm designed to be especially beneficial when a tailored proposal distribution is available. The algorithm is based on a given acyclic graph G, where one of the nodes ... -
Bayesian inference for Markov mesh models – applied to inversion of seismic data
Luo, Xin (Doctoral theses at NTNU;2019:16, Doctoral thesis, 2018)To characterize a petroleum reservoir there are different types of data available, for example, seismic data and observations in wells. In this scenario, it is natural to adopt a Bayesian framework to incorporate observations ... -
Monte Carlo simulation of hyper-parameters in hidden Markov random fields
Luo, Xin (Master thesis, 2014)Bayesian inference is an important branch in statistical sciences. The subject of this thesis is about Bayesian inference in models for a vast number of dependent objects. The fundamental scheme used for the inference in ... -
Prior specification for binary Markov mesh models
Luo, Xin; Tjelmeland, Håkon (Journal article; Peer reviewed, 2019)We propose prior distributions for all parts of the specification of a Markov mesh model. In the formulation, we define priors for the sequential neighborhood, for the parametric form of the conditional distributions and ...