Browsing Bergen Open Research Archive by Author "Gundersen, Kristian"
Now showing items 1-4 of 4
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Bayesian Variational Methods in Carbon Storage Monitoring
Gundersen, Kristian (Doctoral thesis, 2021-01-19)This thesis explores the use of deep learning and variational inference in Carbon Capture and Storage (CCS) monitoring. It consists of an introductory part and three scientific papers. The first chapter introduces CCS and ... -
Binary time series classification with Bayesian convolutional neural networks when monitoring for marine gas discharges
Gundersen, Kristian; Alendal, Guttorm; Oleynik, Anna; Blaser, Nello (Journal article; Peer reviewed, 2020-06-19)The world’s oceans are under stress from climate change, acidification and other human activities, and the UN has declared 2021–2030 as the decade for marine science. To monitor the marine waters, with the purpose of ... -
Semi-conditional variational auto-encoder for flow reconstruction and uncertainty quantification from limited observations
Gundersen, Kristian; Oleynik, Anna; Blaser, Nello; Alendal, Guttorm (Journal article; Peer reviewed, 2021)We present a new data-driven model to reconstruct nonlinear flow from spatially sparse observations. The proposed model is a version of a Conditional Variational Auto-Encoder (CVAE), which allows for probabilistic ... -
Two Level Additive Schwarz Preconditioner For Control Volume Finite Element Methods
Gundersen, Kristian (Master thesis, 2010-09-22)In this thesis we investigate nummerically the convergence properties of the control volume finite element method (CVFEM) preconditioned with a two level overlapping additive Schwarz method. Relevant theory regarding the ...