Håkon Gryvill
About
I am a PhD candidate in statistics and a part of the research project GAMES (Geophysics and Applied Mathematics in Exploration and Safe production). My supervisor is Professor Håkon Tjelmeland. I have an MSc in Industrial Mathematics from NTNU (2020).
Research
Research topics
- Ensemble filtering of categorical and continuous variables in a Bayesian framework.
- Ensemble based methods with applications in geoscience.
Research areas
- Bayesian inference.
- Computational and spatial statistics.
- Ensemble Kalman filter.
Publications
2024
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Gryvill, Håkon;
Grana, Dario;
Tjelmeland, Håkon.
(2024)
Bayesian Ensemble Kalman Filter for Gaussian Mixture Models.
Mathematical Geosciences
Academic article
2023
-
Gryvill, Håkon;
Tjelmeland, Håkon.
(2023)
A sparse matrix formulation of model-based ensemble Kalman filter.
Statistics and computing
Academic article
Journal publications
-
Gryvill, Håkon;
Grana, Dario;
Tjelmeland, Håkon.
(2024)
Bayesian Ensemble Kalman Filter for Gaussian Mixture Models.
Mathematical Geosciences
Academic article
-
Gryvill, Håkon;
Tjelmeland, Håkon.
(2023)
A sparse matrix formulation of model-based ensemble Kalman filter.
Statistics and computing
Academic article
Knowledge Transfer
2024
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Academic lectureGryvill, Håkon; Tjelmeland, Håkon. (2024) Ensemble Kalman filter with sparse precision matrices. GAMES GAMES meeting , Trondheim 2024-05-06 - 2024-05-07
2023
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Academic lectureGryvill, Håkon; Tjelmeland, Håkon. (2023) A sparse matrix formulation of the model-based ensemble Kalman filter. Chalmers University Nordstat 2023 , Gothenburg 2023-06-19 - 2023-06-22
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Academic lectureGryvill, Håkon; Grana, Dario; Tjelmeland, Håkon. (2023) An ensemble Kalman filter for a combined model of categorical and continuous variables. GAMES GAMES meeting , Trondheim 2023-05-08 - 2023-05-09
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Academic lectureGryvill, Håkon; Tjelmeland, Håkon. (2023) A sparse matrix formulation of model-based ensemble Kalman filter. EAGE Petroleum Geostatistics 2023 , Porto, Portugal 2023-11-27 - 2023-11-30
2022
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Academic lectureGryvill, Håkon; Tjelmeland, Håkon. (2022) A sparse matrix formulation of the model-based ensemble Kalman filter. GAMES GAMES meeting , Trondheim 2022-05-09 - 2022-05-10
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Academic lectureGryvill, Håkon; Tjelmeland, Håkon. (2022) A sparse matrix formulation of the model-based ensemble Kalman filter. NORCE EnKF workshop , Balestrand 2022-05-30 - 2022-06-02
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Academic lectureTjelmeland, Håkon; Gryvill, Håkon; Loe, Margrethe Kvale. (2022) Model-based ensemble Kalman filter. International Association for Mathematical Geosciences 21st Annual Conference of the International Association for Mathematical Geosciences , Nancy 2022-08-30 - 2022-09-03