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Andreas Størksen Stordal's picture

Andreas Størksen Stordal

  • E-mailandreas.stordal@uib.no
  • Visitor Address
    Allégaten 41
    Realfagbygget
    5007 Bergen
  • Postal Address
    Postboks 7803
    5020 Bergen
Academic article
  • Show author(s) (2023). Treatment fidelity in a pragmatic clinical trial of music therapy for premature infants and their parents: the LongSTEP study. Trials. 13 pages.
  • Show author(s) (2023). Offshore wind farm layout optimization using ensemble methods. Renewable Energy. 10 pages.
  • Show author(s) (2023). Effect of Music Therapy on Parent-Infant Bonding Among Infants Born Preterm: A Randomized Clinical Trial. JAMA Network Open. e2315750.
  • Show author(s) (2023). An organ deformation model using Bayesian inference to combine population and patient-specific data. Physics in Medicine and Biology.
  • Show author(s) (2023). A natural Hessian approximation for ensemble based optimization. Computational Geosciences. 355-364.
  • Show author(s) (2022). Short-term Music Therapy for Families With Preterm Infants: A Randomized Trial. Pediatrics. 12 pages.
  • Show author(s) (2021). p-Kernel Stein Variational Gradient Descent for Data Assimilation and History Matching. Mathematical Geosciences. 375-393.
  • Show author(s) (2021). Reducing systematic errors due to deformation of organs at risk in radiotherapy. Medical Physics (Lancaster). 6578-6587.
  • Show author(s) (2020). Assessment of multilevel ensemble-based data assimilation for reservoir history matching. Computational Geosciences. 217-239.
  • Show author(s) (2019). Revising the stochastic iterative ensemble smoother. Nonlinear processes in geophysics. 325-338.
  • Show author(s) (2019). Efficient Implementation of an Iterative Ensemble Smoother for Data Assimilation and Reservoir History Matching. Frontiers in Applied Mathematics and Statistics. 1-14.
  • Show author(s) (2017). Large sample properties of the adaptive gaussian mixture filter. Monthly Weather Review. 2533-2553.
  • Show author(s) (2017). Improving physically based snow simulations by assimilating snow depths using the particle filter. Water Resources Research. 1125-1143.
  • Show author(s) (2017). An auxiliary adaptive Gaussian mixture filter applied to flowrate allocation using real data from a multiphase producer. Computers & Geosciences. 34-44.
  • Show author(s) (2017). A modified randomized maximum likelihood for improved Bayesian history matching. Computational Geosciences. 29-41.
  • Show author(s) (2016). Integrated Workflow of Preserving Facies Realism in History Matching: Application to the Brugge Field. SPE Journal.
  • Show author(s) (2016). Estimation of production rates using transient well flow modeling and the auxiliary particle filter – full-scale applications. SPE Production & Operations. 163-175.
  • Show author(s) (2015). Iterative ensemble smoothers in the annealed importance sampling framework. Advances in Water Resources. 231-239.
  • Show author(s) (2015). Iterative Ensemble Smoother as an Approximate Solution to a Regularized Minimum-Average-Cost Problem: Theory and Applications. SPE Journal. 962-982.
  • Show author(s) (2015). Iterative Bayesian inversion with Gaussian mixtures: finite sample implementation and large sample asymptotics. Computational Geosciences. 1-15.
  • Show author(s) (2015). Complex geology estimation using the iterative adaptive Gaussian mixture filter. Computational Geosciences.
  • Show author(s) (2015). Bridging multipoint statistics and truncated Gaussian fields for improved estimation of channelized reservoirs with ensemble methods. Computational Geosciences. 341-369.
  • Show author(s) (2015). A theoretical look at ensemble-based optimization in reservoir management. Mathematical Geosciences.
  • Show author(s) (2014). Toward an enhanced Bayesian estimation framework for multiphase flow soft-sensing. Inverse Problems.
  • Show author(s) (2014). Estimation of production rates with transient well-flow modeling and the auxiliary particle filter. SPE Journal. 172-180.
  • Show author(s) (2014). An iterative version of the adaptive Gaussian mixture filter. Computational Geosciences. 579-595.
  • Show author(s) (2012). Filtering with state space localized Kalman gain. Physica D : Non-linear phenomena. 1123-1135.
  • Show author(s) (2012). Evaluation of EnKF and variants on the PUNQ-S3 case. Oil & gas science and technology. 841-855.
  • Show author(s) (2012). Comparing the adaptive Gaussian mixture filter with the ensemble Kalman filter on synthetic reservoir models. Computational Geosciences. 467-482.
  • Show author(s) (2011). Characterization of permeability and porosity from nanosensor observations. Advances in Water Resources. 946-956.
  • Show author(s) (2011). Bridging the ensemble Kalman filter and particle filters: the adaptive Gaussian mixture filter. Computational Geosciences. 293-305.
Report
  • Show author(s) (2014). On an Alternative Implementation of the Iterative Ensemble Smoother and its Application to Reservoir Facies Estimation. .
  • Show author(s) (2014). Large sample properties of the Adaptive Gaussian Mixture Filter. .
  • Show author(s) (2014). Iterative Bayesian Inversion with Gaussian Mixtures: Finite Sample Implementation and Large Sample Asymptotics. .
  • Show author(s) (2014). Ensemble Smoothers in the Annealed Importance Sampling Framework. .
  • Show author(s) (2014). Bridging multipoint statistics and truncated Gaussian fields for improved estimation of channelized reservoirs with ensemble methods. .
Lecture
  • Show author(s) (2018). Practical Use of the Ensemble-Based Conjugate Gradient Method for Production Optimization in the Brugge Benchmark Study.
  • Show author(s) (2018). A Novel Ensemble-Based Conjugate Gradient Method for Reservoir Management.
  • Show author(s) (2017). Iterative Ensemble Smoothers in the Annealed Importance Sampling Framework.
  • Show author(s) (2016). Mutation Based Optimization Extensions and Improvements.
  • Show author(s) (2016). Iterative Ensemble Smoother in a Probabilistic Framework.
  • Show author(s) (2016). Improving physically based snow simulations by assimilating snow depths using the particle filter.
  • Show author(s) (2015). Preserving Geological Realism in Reservoir Data Assimilation.
Academic lecture
  • Show author(s) (2021). Short-term Music Therapy for Premature Infants and their Parents: Results from international randomized trial LongSTEP.
  • Show author(s) (2019). Stein Variational Gradient Descent with Application to Data Assimilation.
  • Show author(s) (2019). Revising the Method of Ensemble Randomized Maximum Likelihood.
  • Show author(s) (2017). Multi-level ensemble based data assimilation.
  • Show author(s) (2017). Generic approaches to reducing data-assimilation Monte-Carlo error for subsurface applications.
  • Show author(s) (2017). Ensemble-based Methods for Production Optimization.
  • Show author(s) (2016). Gradient free production optimization under geological uncertainty.
  • Show author(s) (2016). Different parameterizations of the initial ensemble for a channelized reservoir in an Assisted History Matching context.
  • Show author(s) (2016). An Auxiliary Adaptive Gaussian Mixture Filter Applied to Flowrate Allocation Using Real Data from a Multiphase Producer.
  • Show author(s) (2015). particle Filters and Gaussian Mixture Filters.
  • Show author(s) (2015). Preserving Geological Realism of Channelized Facies in Complex Reservoir.
  • Show author(s) (2015). Preserving Geological Realism for Channelized Facies Estimation on the Brugge Field.
  • Show author(s) (2015). Generalized Randomized Maximum Likelihood.
  • Show author(s) (2015). Facies Parameterization and Estimation for Complex Reservoirs - The Brugge Field.
  • Show author(s) (2015). Ensemble Smoothers in the Annealed Importance Sampling Framework.
  • Show author(s) (2015). (Towards a) Generalized Randomized Maximum Likelihood.
  • Show author(s) (2014). Toward an Enhanced Bayesian Estimation Framework for Multiphase Flow Soft-sensing.
  • Show author(s) (2014). Robust Ensemble-based Multi-objective Optimization.
  • Show author(s) (2014). Preserving Channelized Facies on Brugge Field .
  • Show author(s) (2014). On an iterative ensemble smoother and its application to a reservoir facies estimation problem.
  • Show author(s) (2014). On an iterative ensemble smoother and its application to a reservoir facies estimation problem.
  • Show author(s) (2014). On an Alternative Implementation of the Iterative Ensemble Smoother and its Application to Reservoir Facies Estimation.
  • Show author(s) (2014). Gaussian Mixtures in data assimilation problems.
  • Show author(s) (2014). Ensemble based methods for estimation and optimization.
  • Show author(s) (2014). Complex Geology Estimation Using the Iterative Adaptive Gaussian Mixture (IAGM).
  • Show author(s) (2014). Asymptotic properties of a broad class of mixture filters.
  • Show author(s) (2014). A Closer Look at Ensemble-based Optimization in Reservoir Management.
  • Show author(s) (2013). Gaussian mutation for optimization and efficient importance sampling.
  • Show author(s) (2012). Refined Adaptive Gaussian Mixture Filter - Application on a Real Field Case.
  • Show author(s) (2012). Iterative versions of the adaptive Gaussian mixture filter.
  • Show author(s) (2012). History matching of channelized reservoirs using ensemble based methods.
  • Show author(s) (2012). Application of the Adaptive Gaussian Mixture Filter to History Match a Real Field Case.
  • Show author(s) (2012). An alternative implementation of the iterative ensemble smoother and some numerical results.
Doctoral dissertation
  • Show author(s) (2011). Sequential Data Assimilation in High Dimensional Nonlinear Systems.
Academic chapter/article/Conference paper
  • Show author(s) (2018). Practical Use of the Ensemble-Based Conjugate Gradient Method for Production Optimization in the Brugge Benchmark Study. 13 pages.
  • Show author(s) (2018). A Novel Ensemble-Based Conjugate Gradient Method for Reservoir Management. 13 pages.
  • Show author(s) (2016). Ensemble Based Optimization Using Importance Sampling and Gaussian Mixtures.
  • Show author(s) (2016). Different Parameterizations of the Initial Ensemble for a Channelized Reservoir in an Assisted History matching Context.
  • Show author(s) (2016). An Auxiliary Adaptive Gaussian Mixture Filter Applied to Flowrate Allocation Using Real Data from a Multiphase Producer.
  • Show author(s) (2014). Toward an Enhanced Bayesian Estimation Framework for Multiphase Flow Soft-sensing.
  • Show author(s) (2014). Robust Ensemble-based Multi-objective Optimization.
  • Show author(s) (2014). On an Alternative Implementation of the Iterative Ensemble Smoother and its Application to Reservoir Facies Estimation.
  • Show author(s) (2014). Complex Geology Estimation Using the Iterative Adaptive Gaussian Mixture (IAGM).
  • Show author(s) (2014). A Closer Look at Ensemble-based Optimization in Reservoir Management. 16 pages.
Poster
  • Show author(s) (2016). Ensemble Based Optimization Using Importance Sampling and Gaussian Mixtures.
  • Show author(s) (2016). Different parameterizations of the Initial Ensemble for a Channelized Reservoir in an Assisted History Matching Context.
  • Show author(s) (2015). Preserving Geological Realism of Facies Estimation on the Brugge Field.
  • Show author(s) (2014). On an alternative implementation of the iterative ensemble smoother and its application to a reservoir facies estimation problem.
  • Show author(s) (2014). On an alternative implementation of the iterative ensemble smoother and its application to a reservoir facies estimation problem.
Academic literature review
  • Show author(s) (2017). An adaptive pluri-Gaussian simulation model for geological uncertainty quantification. Journal of Petroleum Science and Engineering. 494-508.

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