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English

Håkon Tjelmeland

Håkon Tjelmeland

Professor
Institutt for matematiske fag

haakon.tjelmeland@ntnu.no
Sentralbygg 2, 1032, Gløshaugen, Alfred Getz vei 1
Om Publikasjoner Undervisning Formidling

Om

Håkon Tjelmeland er professor ved Institutt for matematiske fag. Han tilhører Gruppen for statistikk. Tjelmeland er utdannet sivilingeniør i industriell matematikk, og har en doktorgrad i statistikk, begge fra NTNU.

Se engelsk side for mer informasjon.

Kompetanseord

  • Statistikk

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Se alle publikasjoner i Cristin

2023

  • Gryvill, Håkon; Tjelmeland, Håkon. (2023) A sparse matrix formulation of model-based ensemble Kalman filter. Statistics and computing
    Vitenskapelig artikkel

2022

  • Loe, Margrethe Kvale; Tjelmeland, Håkon. (2022) Ensemble updating of categorical state vectors. Computational statistics (Zeitschrift)
    Vitenskapelig artikkel

2021

  • Kreis, Isabel Viola; Biegler, Robert; Tjelmeland, Håkon; Mittner, Matthias; Reitan, Solveig Merete Klæbo; Pfuhl, Gerit. (2021) Overestimation of volatility in schizophrenia and autism? A comparative study using a probabilistic reasoning task. PLOS ONE
    Vitenskapelig artikkel
  • Loe, Margrethe Kvale; Grana, Dario; Tjelmeland, Håkon. (2021) Geophysics-Based Fluid-Facies Predictions Using Ensemble Updating of Binary State Vectors. Mathematical Geosciences
    Vitenskapelig artikkel

2020

  • Loe, Margrethe Kvale; Tjelmeland, Håkon. (2020) Ensemble updating of binary state vectors by maximising the expected number of unchanged components. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Hegelstad, Wenche; Kreis, Isabel Viola; Tjelmeland, Håkon; Pfuhl, Gerit. (2020) Psychosis and Psychotic-Like Symptoms Affect Cognitive Abilities but Not Motivation in a Foraging Task. Frontiers in Psychology
    Vitenskapelig artikkel

2019

  • Luo, Xin; Tjelmeland, Håkon. (2019) A multiple-try Metropolis–Hastings algorithm with tailored proposals. Computational statistics (Zeitschrift)
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Luo, Xin; Fjeldstad, Torstein Mæland. (2019) A Bayesian model for lithology/fluid class prediction using a Markov mesh prior fitted from a training image. Geophysical Prospecting
    Vitenskapelig artikkel
  • Luo, Xin; Tjelmeland, Håkon. (2019) Prior specification for binary Markov mesh models. Statistics and computing
    Vitenskapelig artikkel

2017

  • Langaas, Mette; Buan, Aslak Bakke; Rønning, Frode; Tjelmeland, Håkon; Skauvold, Jacob; Thaule, Marius. (2017) Læringsressurser i grunnutdanningen i matematikk - kvalitet, tilgjengelighet og differensiering. Læring om læring
    Vitenskapelig artikkel

2016

  • Arnesen, Petter; Tjelmeland, Håkon. (2016) Prior specification of neighbourhood and interaction structure in binary Markov random fields. Statistics and computing
    Vitenskapelig artikkel
  • Austad, Haakon; Tjelmeland, Håkon. (2016) Approximate computations for binary Markov random fields and their use in Bayesian models. Statistics and computing
    Vitenskapelig artikkel

2015

  • Pfuhl, Gerit; Sandvik, Kristin; Biegler, Robert; Tjelmeland, Håkon. (2015) Identifying the computational parameters gone awry in psychosis. Lecture Notes in Computer Science (LNCS)
    Vitenskapelig artikkel
  • Arnesen, Petter; Tjelmeland, Håkon. (2015) Fully Bayesian Binary Markov Random Field Models: Prior Specification and Posterior Simulation. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Arnesen, Petter; Tjelmeland, Håkon. (2015) Prior construction for discrete Markov models. Skipnes kommunikasjon as
    Doktorgradsavhandling

2013

  • Toftaker, Håkon; Tjelmeland, Håkon. (2013) Construction of Binary Multi-grid Markov Random Field Prior Models from Training Images. Mathematical Geosciences
    Vitenskapelig artikkel

2012

  • Helland, Inge Svein; Sæbø, Solve; Tjelmeland, Håkon. (2012) Near optimal prediction from relevant components. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Austad, Haakon. (2012) Exact and Approximate Recursive Calculations for Binary Markov Random Fields Defined on Graphs. Journal of Computational And Graphical Statistics (JCGS)
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Kolbjørnsen, Odd; Tjelmeland, Håkon; Buland, Arild. (2012) Lithology and fluid prediction from prestack seismic data using a Bayesian model with Markov process prior. Geophysical Prospecting
    Vitenskapelig artikkel
  • Martinelli, Gabriele; Eidsvik, Jo; Hauge, Ragnar; Tjelmeland, Håkon. (2012) Petroleum exploration with Bayesian Networks - From prospect risk assessment to optimal exploration. Doktoravhandlinger ved NTNU (2012:273)
    Doktorgradsavhandling

2011

  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2011) Approximate forward–backward algorithm for a switching linear Gaussian model. Computational Statistics & Data Analysis
    Vitenskapelig artikkel
  • Pfuhl, Gerit; Tjelmeland, Håkon; Biegler, Robert. (2011) Precision and Reliability in Animal Navigation. Bulletin of Mathematical Biology
    Vitenskapelig artikkel

2010

  • Lødøen, Ole Petter; Tjelmeland, Håkon. (2010) Bayesian calibration of hydrocarbon reservoir models using an approximate reservoir simulator in the prior specification. Statistical Modelling
    Vitenskapelig artikkel

2009

  • Pfuhl, Gerit; Tjelmeland, Håkon; Molden, Sturla; Biegler, Robert. (2009) Optimal cache search depends on precision of spatial memory and pilfering, but what if that knowledge is not perfect?. Animal Behaviour
    Vitenskapelig artikkel
  • Scharpf, R. B.; Tjelmeland, Håkon; Parmigiani, G.; Nobel, A.B.. (2009) A Bayesian model for cross-study differential gene expression. Journal of the American Statistical Association
    Vitenskapelig artikkel
  • Scharpf, R. B.; Tjelmeland, Håkon; Parmigiani, G.; Nobel, A.B.. (2009) Rejoinder: A Bayesian model for cross-study differential gene expression. Journal of the American Statistical Association
    Vitenskapelig artikkel

2008

  • Shabalin, AA; Tjelmeland, Håkon; Fan, C; Perou, CM; Nobel, AB. (2008) Merging two gene-expression studies via cross-platform normalization. Bioinformatics
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis--Hastings algorithm. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis-Hastings algorithm. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2008) Non-linear Bayesian joint inversion of seismic reflection coefficients. Geophysical Journal International
    Vitenskapelig artikkel

2007

  • Wu, YH; Tjelmeland, Håkon; West, M. (2007) Bayesian CART: Prior specification and posterior simulation. Journal of Computational And Graphical Statistics (JCGS)
    Vitenskapelig artikkel
  • Eftedal, Olav Sande; Tjelmeland, Håkon; Brubakk, Alf O. (2007) Validation of decompression procedures based on detection of venous gas bubbles: a bayesian approach. Aviation, Space and Environmental Medicine
    Vitenskapelig artikkel

2006

  • Eidsvik, Jo; Tjelmeland, Håkon. (2006) On directional Metropolis-Hastings algorithms. Statistics and computing
    Vitenskapelig artikkel

2005

  • Tjelmeland, Håkon; Eidsvik, Jo. (2005) Directional Metropolis-Hastings updates for posteriors with nonlinear likelihoods. Springer Publishing Company
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2004

  • Tjelmeland, Håkon; Eidsvik, Jo. (2004) On the use of local optimizations within Metropolis-Hastings updates. Journal of The Royal Statistical Society Series B-statistical Methodology
    Vitenskapelig artikkel

2003

  • Tjelmeland, Håkon; Lund, Kjetill Vassmo. (2003) Bayesian modelling of spatial compositional data. Journal of Applied Statistics
    Vitenskapelig artikkel

2002

  • Rue, Håvard; Tjelmeland, Håkon. (2002) Fitting Gaussian Markov random fields to Gaussian fields. Scandinavian Journal of Statistics
    Vitenskapelig artikkel

2001

  • Tjelmeland, Håkon. (2001) Contribution to discussion of Kennedy,M.C. and O'Hagan, A. (2001): Bayesian calibration of computer models. Journal of The Royal Statistical Society Series B-statistical Methodology
    Vitenskapelig artikkel
  • Holden, Lars; Skare, Øivind; Omre, Henning; Tjelmeland, Håkon. (2001) Sampling algorithms for Bayesian history matching. NR-notat (SAND/04/01)
    Rapport
  • Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (2001) Mode jumping proposals in MCMC. Scandinavian Journal of Statistics
    Vitenskapelig artikkel

1998

  • Tjelmeland, Håkon; Besag, Julian. (1998) Markov random fields with higher order interactions. Scandinavian Journal of Statistics
    Vitenskapelig artikkel

1997

  • Omre, Henning; Tjelmeland, Håkon. (1997) Petroleum geostatistics.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tjelmeland, Håkon; Omre, Henning. (1997) A complex sand-shale facies model conditioned on observations from wells, seismics and production.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; Egeland, Thore. (1997) Uncertainties in reservoir production forecasts. American Association of Petroleum Geologists Bulletin
    Vitenskapelig artikkel

1996

  • Lia, Oddvar; Tjelmeland, Håkon; Kjellesvik, Lars Edward. (1996) Modeling of facies architecture by marked point models. Ukjent
    Vitenskapelig artikkel

1995

  • Tjelmeland, Håkon; Lia, Oddvar. (1995) A marked point process model in reservoir characterization.
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; Egeland, Thore; Andersen, Tove. (1995) The great reservoir uncertainty study - GRUS.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

1994

  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve. (1994) GRUS - Great reservoir uncertainty study. Documentation of results. NR-notat (SAND/13/94)
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve. (1994) GRUS - Great reservoir uncertainty study. Documentation of model. NR-notat (SAND/12/94)
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve. (1994) GRUS - great reservoir uncertainty study summary report. NR-notat (SAND/11/94)
    Rapport
  • Egeland, Thore; Omre, Henning; Lia, Oddvar; Tjelmeland, Håkon; Holden, Lars; Andersen, Tove. (1994) GRUS data analysis. NR-notat (SAND/17/94)
    Rapport

1993

  • Storvik, Geir Olve; Egeland, Thore; Holden, Lars; Tjelmeland, Håkon. (1993) Markov Chain simulations for analysis of marked point processes. Report at the Norwegian Computing Center (869)
    Rapport
  • Tjelmeland, Håkon; Holden, Lars. (1993) Semi-markov random fields. Springer
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Clemetsen, Rolf; Georgsen, Frode; Hektoen, Anne-Lise; Holden, Lars; Lia, Oddvar; Tjelmeland, Håkon. (1993) MOHERES - A program system for simulation of reservoir architecture and reservoir properties. Version 3.1. NR-notat (SAND/09/93)
    Rapport
  • Omre, Henning; Lia, Oddvar; Tjelmeland, Håkon; Hustad, Odd Steve; Qi, Yuanchang. (1993) Great reservoir uncertainty study. Preliminary version of documentation of models and test plan.
    Rapport

1992

  • Omre, Henning; Tjelmeland, Håkon. (1992) Modeling of the Statfjord formation Statfjord field. Stochastic production evaluation - Phase III.
    Rapport
  • Clemetsen, Rolf; Georgsen, Frode; Hektoen, Anne-Lise; Holden, Lars; Tjelmeland, Håkon. (1992) MOHERES - a program system for simulation of reservoir architecture and reservoir properties. Version 3.0. NR-notat (SAND/12/92)
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1992) Simulation of random functions on large lattices. Ukjent
    Vitenskapelig artikkel

1991

  • Omre, Henning; Tjelmeland, Håkon; Qi, Yuanchang; Hinderaker, Leif. (1991) Assessment of uncertainty in the production characteristics of a sandstone reservoir. Ukjent
    Vitenskapelig artikkel
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1991) Simulation of random functions on large lattices.
    Rapport
  • Omre, Henning; Egeland, Thore; Holden, Lars; Lia, Oddvar; Tjelmeland, Håkon; MacDonald, Alister. (1991) GRUS-report: Outline of models and test plan. NR-notat (SAND/30/91)
    Rapport

1990

  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) Large scale barriers in extensively drilled reservoirs.
    Rapport
  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) A stochastic model for shale distribution in petroleum reservoirs.
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon; Claesson, Lennart; Holter, Cathrine. (1990) Calcite cementation: description and production consequences. Ukjent
    Vitenskapelig artikkel
  • Holden, Lars; Tjelmeland, Håkon. (1990) MOHERES - a program system for simulation of reservoir properties. NR-notat (SAND/19/90)
    Rapport
  • Holden, Lars; Tjelmeland, Håkon. (1990) A program system for simulation of reservoir architecture and reservoir properties. NR-notat (SAND/10/90)
    Rapport

1989

  • Holbæk-Hanssen, Erik; Tjelmeland, Håkon; Johannessen, Ola M.; Olaussen, Tor; Karpuz, Ridvan. (1989) Speckle reduction and maximum likelihood classification of SAR images from sea ice recorded during MIZEX 87. Ukjent
    Vitenskapelig artikkel
  • Holbæk-Hanssen, Erik; Tjelmeland, Håkon; Wang, Bo; Karpuz, Ridvan. (1989) Classification of sea-ice using SAR data. Ukjent
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Omre, Henning. (1989) Modelling of the Statfjord formation, Statfjord field. Stochastic reservoir description. Phase II.
    Rapport
  • Tjelmeland, Håkon; Wang, Bo. (1989) Filtrering og klassifikasjon av SAR-bilder over hav-is.
    Rapport
  • Omre, Henning; Tjelmeland, Håkon. (1989) BARESI - BArriers in REservoirs by SImulation.
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1989) Simulation of calcite cemented barriers in the TROLL field.
    Rapport

1988

  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1988) Modeling of the Statfjord formation, Statfjord field; Stochastic reservoir description, phase I.
    Rapport
  • Halvorsen, Kjetil B.; Omre, Henning; Tjelmeland, Håkon. (1988) Simulating fractile characteristics of petroleum reservoirs.
    Rapport

Tidsskriftspublikasjoner

  • Gryvill, Håkon; Tjelmeland, Håkon. (2023) A sparse matrix formulation of model-based ensemble Kalman filter. Statistics and computing
    Vitenskapelig artikkel
  • Loe, Margrethe Kvale; Tjelmeland, Håkon. (2022) Ensemble updating of categorical state vectors. Computational statistics (Zeitschrift)
    Vitenskapelig artikkel
  • Kreis, Isabel Viola; Biegler, Robert; Tjelmeland, Håkon; Mittner, Matthias; Reitan, Solveig Merete Klæbo; Pfuhl, Gerit. (2021) Overestimation of volatility in schizophrenia and autism? A comparative study using a probabilistic reasoning task. PLOS ONE
    Vitenskapelig artikkel
  • Loe, Margrethe Kvale; Grana, Dario; Tjelmeland, Håkon. (2021) Geophysics-Based Fluid-Facies Predictions Using Ensemble Updating of Binary State Vectors. Mathematical Geosciences
    Vitenskapelig artikkel
  • Loe, Margrethe Kvale; Tjelmeland, Håkon. (2020) Ensemble updating of binary state vectors by maximising the expected number of unchanged components. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Hegelstad, Wenche; Kreis, Isabel Viola; Tjelmeland, Håkon; Pfuhl, Gerit. (2020) Psychosis and Psychotic-Like Symptoms Affect Cognitive Abilities but Not Motivation in a Foraging Task. Frontiers in Psychology
    Vitenskapelig artikkel
  • Luo, Xin; Tjelmeland, Håkon. (2019) A multiple-try Metropolis–Hastings algorithm with tailored proposals. Computational statistics (Zeitschrift)
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Luo, Xin; Fjeldstad, Torstein Mæland. (2019) A Bayesian model for lithology/fluid class prediction using a Markov mesh prior fitted from a training image. Geophysical Prospecting
    Vitenskapelig artikkel
  • Luo, Xin; Tjelmeland, Håkon. (2019) Prior specification for binary Markov mesh models. Statistics and computing
    Vitenskapelig artikkel
  • Langaas, Mette; Buan, Aslak Bakke; Rønning, Frode; Tjelmeland, Håkon; Skauvold, Jacob; Thaule, Marius. (2017) Læringsressurser i grunnutdanningen i matematikk - kvalitet, tilgjengelighet og differensiering. Læring om læring
    Vitenskapelig artikkel
  • Arnesen, Petter; Tjelmeland, Håkon. (2016) Prior specification of neighbourhood and interaction structure in binary Markov random fields. Statistics and computing
    Vitenskapelig artikkel
  • Austad, Haakon; Tjelmeland, Håkon. (2016) Approximate computations for binary Markov random fields and their use in Bayesian models. Statistics and computing
    Vitenskapelig artikkel
  • Pfuhl, Gerit; Sandvik, Kristin; Biegler, Robert; Tjelmeland, Håkon. (2015) Identifying the computational parameters gone awry in psychosis. Lecture Notes in Computer Science (LNCS)
    Vitenskapelig artikkel
  • Arnesen, Petter; Tjelmeland, Håkon. (2015) Fully Bayesian Binary Markov Random Field Models: Prior Specification and Posterior Simulation. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Toftaker, Håkon; Tjelmeland, Håkon. (2013) Construction of Binary Multi-grid Markov Random Field Prior Models from Training Images. Mathematical Geosciences
    Vitenskapelig artikkel
  • Helland, Inge Svein; Sæbø, Solve; Tjelmeland, Håkon. (2012) Near optimal prediction from relevant components. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Austad, Haakon. (2012) Exact and Approximate Recursive Calculations for Binary Markov Random Fields Defined on Graphs. Journal of Computational And Graphical Statistics (JCGS)
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Kolbjørnsen, Odd; Tjelmeland, Håkon; Buland, Arild. (2012) Lithology and fluid prediction from prestack seismic data using a Bayesian model with Markov process prior. Geophysical Prospecting
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2011) Approximate forward–backward algorithm for a switching linear Gaussian model. Computational Statistics & Data Analysis
    Vitenskapelig artikkel
  • Pfuhl, Gerit; Tjelmeland, Håkon; Biegler, Robert. (2011) Precision and Reliability in Animal Navigation. Bulletin of Mathematical Biology
    Vitenskapelig artikkel
  • Lødøen, Ole Petter; Tjelmeland, Håkon. (2010) Bayesian calibration of hydrocarbon reservoir models using an approximate reservoir simulator in the prior specification. Statistical Modelling
    Vitenskapelig artikkel
  • Pfuhl, Gerit; Tjelmeland, Håkon; Molden, Sturla; Biegler, Robert. (2009) Optimal cache search depends on precision of spatial memory and pilfering, but what if that knowledge is not perfect?. Animal Behaviour
    Vitenskapelig artikkel
  • Scharpf, R. B.; Tjelmeland, Håkon; Parmigiani, G.; Nobel, A.B.. (2009) A Bayesian model for cross-study differential gene expression. Journal of the American Statistical Association
    Vitenskapelig artikkel
  • Scharpf, R. B.; Tjelmeland, Håkon; Parmigiani, G.; Nobel, A.B.. (2009) Rejoinder: A Bayesian model for cross-study differential gene expression. Journal of the American Statistical Association
    Vitenskapelig artikkel
  • Shabalin, AA; Tjelmeland, Håkon; Fan, C; Perou, CM; Nobel, AB. (2008) Merging two gene-expression studies via cross-platform normalization. Bioinformatics
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis--Hastings algorithm. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis-Hastings algorithm. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2008) Non-linear Bayesian joint inversion of seismic reflection coefficients. Geophysical Journal International
    Vitenskapelig artikkel
  • Wu, YH; Tjelmeland, Håkon; West, M. (2007) Bayesian CART: Prior specification and posterior simulation. Journal of Computational And Graphical Statistics (JCGS)
    Vitenskapelig artikkel
  • Eftedal, Olav Sande; Tjelmeland, Håkon; Brubakk, Alf O. (2007) Validation of decompression procedures based on detection of venous gas bubbles: a bayesian approach. Aviation, Space and Environmental Medicine
    Vitenskapelig artikkel
  • Eidsvik, Jo; Tjelmeland, Håkon. (2006) On directional Metropolis-Hastings algorithms. Statistics and computing
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Eidsvik, Jo. (2004) On the use of local optimizations within Metropolis-Hastings updates. Journal of The Royal Statistical Society Series B-statistical Methodology
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Lund, Kjetill Vassmo. (2003) Bayesian modelling of spatial compositional data. Journal of Applied Statistics
    Vitenskapelig artikkel
  • Rue, Håvard; Tjelmeland, Håkon. (2002) Fitting Gaussian Markov random fields to Gaussian fields. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Tjelmeland, Håkon. (2001) Contribution to discussion of Kennedy,M.C. and O'Hagan, A. (2001): Bayesian calibration of computer models. Journal of The Royal Statistical Society Series B-statistical Methodology
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (2001) Mode jumping proposals in MCMC. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Besag, Julian. (1998) Markov random fields with higher order interactions. Scandinavian Journal of Statistics
    Vitenskapelig artikkel
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; Egeland, Thore. (1997) Uncertainties in reservoir production forecasts. American Association of Petroleum Geologists Bulletin
    Vitenskapelig artikkel
  • Lia, Oddvar; Tjelmeland, Håkon; Kjellesvik, Lars Edward. (1996) Modeling of facies architecture by marked point models. Ukjent
    Vitenskapelig artikkel
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1992) Simulation of random functions on large lattices. Ukjent
    Vitenskapelig artikkel
  • Omre, Henning; Tjelmeland, Håkon; Qi, Yuanchang; Hinderaker, Leif. (1991) Assessment of uncertainty in the production characteristics of a sandstone reservoir. Ukjent
    Vitenskapelig artikkel
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon; Claesson, Lennart; Holter, Cathrine. (1990) Calcite cementation: description and production consequences. Ukjent
    Vitenskapelig artikkel
  • Holbæk-Hanssen, Erik; Tjelmeland, Håkon; Johannessen, Ola M.; Olaussen, Tor; Karpuz, Ridvan. (1989) Speckle reduction and maximum likelihood classification of SAR images from sea ice recorded during MIZEX 87. Ukjent
    Vitenskapelig artikkel
  • Holbæk-Hanssen, Erik; Tjelmeland, Håkon; Wang, Bo; Karpuz, Ridvan. (1989) Classification of sea-ice using SAR data. Ukjent
    Vitenskapelig artikkel

Del av bok/rapport

  • Tjelmeland, Håkon; Eidsvik, Jo. (2005) Directional Metropolis-Hastings updates for posteriors with nonlinear likelihoods. Springer Publishing Company
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Omre, Henning; Tjelmeland, Håkon. (1997) Petroleum geostatistics.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tjelmeland, Håkon; Omre, Henning. (1997) A complex sand-shale facies model conditioned on observations from wells, seismics and production.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; Egeland, Thore; Andersen, Tove. (1995) The great reservoir uncertainty study - GRUS.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tjelmeland, Håkon; Holden, Lars. (1993) Semi-markov random fields. Springer
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

Rapport

  • Arnesen, Petter; Tjelmeland, Håkon. (2015) Prior construction for discrete Markov models. Skipnes kommunikasjon as
    Doktorgradsavhandling
  • Martinelli, Gabriele; Eidsvik, Jo; Hauge, Ragnar; Tjelmeland, Håkon. (2012) Petroleum exploration with Bayesian Networks - From prospect risk assessment to optimal exploration. Doktoravhandlinger ved NTNU (2012:273)
    Doktorgradsavhandling
  • Holden, Lars; Skare, Øivind; Omre, Henning; Tjelmeland, Håkon. (2001) Sampling algorithms for Bayesian history matching. NR-notat (SAND/04/01)
    Rapport
  • Tjelmeland, Håkon; Lia, Oddvar. (1995) A marked point process model in reservoir characterization.
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve. (1994) GRUS - Great reservoir uncertainty study. Documentation of results. NR-notat (SAND/13/94)
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve. (1994) GRUS - Great reservoir uncertainty study. Documentation of model. NR-notat (SAND/12/94)
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve. (1994) GRUS - great reservoir uncertainty study summary report. NR-notat (SAND/11/94)
    Rapport
  • Egeland, Thore; Omre, Henning; Lia, Oddvar; Tjelmeland, Håkon; Holden, Lars; Andersen, Tove. (1994) GRUS data analysis. NR-notat (SAND/17/94)
    Rapport
  • Storvik, Geir Olve; Egeland, Thore; Holden, Lars; Tjelmeland, Håkon. (1993) Markov Chain simulations for analysis of marked point processes. Report at the Norwegian Computing Center (869)
    Rapport
  • Clemetsen, Rolf; Georgsen, Frode; Hektoen, Anne-Lise; Holden, Lars; Lia, Oddvar; Tjelmeland, Håkon. (1993) MOHERES - A program system for simulation of reservoir architecture and reservoir properties. Version 3.1. NR-notat (SAND/09/93)
    Rapport
  • Omre, Henning; Lia, Oddvar; Tjelmeland, Håkon; Hustad, Odd Steve; Qi, Yuanchang. (1993) Great reservoir uncertainty study. Preliminary version of documentation of models and test plan.
    Rapport
  • Omre, Henning; Tjelmeland, Håkon. (1992) Modeling of the Statfjord formation Statfjord field. Stochastic production evaluation - Phase III.
    Rapport
  • Clemetsen, Rolf; Georgsen, Frode; Hektoen, Anne-Lise; Holden, Lars; Tjelmeland, Håkon. (1992) MOHERES - a program system for simulation of reservoir architecture and reservoir properties. Version 3.0. NR-notat (SAND/12/92)
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1991) Simulation of random functions on large lattices.
    Rapport
  • Omre, Henning; Egeland, Thore; Holden, Lars; Lia, Oddvar; Tjelmeland, Håkon; MacDonald, Alister. (1991) GRUS-report: Outline of models and test plan. NR-notat (SAND/30/91)
    Rapport
  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) Large scale barriers in extensively drilled reservoirs.
    Rapport
  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) A stochastic model for shale distribution in petroleum reservoirs.
    Rapport
  • Holden, Lars; Tjelmeland, Håkon. (1990) MOHERES - a program system for simulation of reservoir properties. NR-notat (SAND/19/90)
    Rapport
  • Holden, Lars; Tjelmeland, Håkon. (1990) A program system for simulation of reservoir architecture and reservoir properties. NR-notat (SAND/10/90)
    Rapport
  • Tjelmeland, Håkon; Omre, Henning. (1989) Modelling of the Statfjord formation, Statfjord field. Stochastic reservoir description. Phase II.
    Rapport
  • Tjelmeland, Håkon; Wang, Bo. (1989) Filtrering og klassifikasjon av SAR-bilder over hav-is.
    Rapport
  • Omre, Henning; Tjelmeland, Håkon. (1989) BARESI - BArriers in REservoirs by SImulation.
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1989) Simulation of calcite cemented barriers in the TROLL field.
    Rapport
  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1988) Modeling of the Statfjord formation, Statfjord field; Stochastic reservoir description, phase I.
    Rapport
  • Halvorsen, Kjetil B.; Omre, Henning; Tjelmeland, Håkon. (1988) Simulating fractile characteristics of petroleum reservoirs.
    Rapport

Undervisning

Emner

  • MA8702 - Videregående beregningskrevende statistiske metoder
  • TMA4275 - Levetidsanalyse
  • TMA4245 - Statistikk
  • TMA4240 - Statistikk

Formidling

2023

  • Vitenskapelig foredrag
    Gryvill, 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
  • Vitenskapelig foredrag
    Gryvill, 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

2022

  • Vitenskapelig foredrag
    Gryvill, 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
  • Vitenskapelig foredrag
    Gryvill, 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
  • Vitenskapelig foredrag
    Tjelmeland, 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

2021

  • Vitenskapelig foredrag
    Tjelmeland, Håkon; Loe, Margrethe Kvale. (2021) A generalisation of the updating step i EnKF. NORCE 2021 EnKF Workshop , Digitalt 2021-06-07 - 2021-06-11

2020

  • Vitenskapelig foredrag
    Pfuhl, Gerit; Tjelmeland, Håkon. (2020) Who's more Bayesian? Belief updating and no conservatism bias in Schizophrenia. Mathematical Psychology Association The 53rd Annual Meeting of the Society for Mathematical Psychology (MathPsych2020) , virtual (Toronto) 2020-07-20 - 2020-08-01

2019

  • Poster
    Pfuhl, Gerit; Tjelmeland, Håkon. (2019) Probabilistic reasoning in schizophrenia is volatile but not biased. CCN Computational and cognitive neuroscience conference , Berlin 2019-09-13 - 2019-09-16
  • Vitenskapelig foredrag
    Loe, Margrethe Kvale; Tjelmeland, Håkon. (2019) Ensemble Updating of Binary State Vectors by Maximising the Expected Number of Unchanged Components. EAGE Petroleum Geostatistics 2019 , Firenze 2019-09-02 - 2019-09-06
  • Vitenskapelig foredrag
    Tjelmeland, Håkon; Luo, Xin; Fjeldstad, Torstein Mæland. (2019) A Flexible Markov Mesh Prior for Lithology/fluid Class Prediction. EAGE Petroleum Geostatistics 2019 , Firenze 2019-09-02 - 2019-09-06

2018

  • Poster
    Pfuhl, Gerit; Tjelmeland, Håkon. (2018) On probability estimates and who is more aberrant - patients with Schizophrenia or Healthy Controls?. Lundbeckfond Brain Prize conference Neuroscience of Prediction , Rungstedgaard 2018-04-15 - 2018-04-18

2017

  • Poster
    Kreis, Isabel Viola; Tjelmeland, Håkon; Biegler, Robert; Tröbinger, Luzia Rosa; Pfuhl, Gerit. (2017) Ignorance or awareness of changes measured in a probabilistic inference task. The Brain Prize Meeting 2017 , Middelfart 2017-10-30 - 2017-11-01
  • Poster
    Kreis, Isabel Viola; Sandvik, Kristin; Tjelmeland, Håkon; Biegler, Robert; Pfuhl, Gerit. (2017) Probabilistic inference in psychosis and autism. Norwegian Research School in Neuroscience 5th National PhD Conference in Neuroscience , Sommarøy, TROMS 2017-09-20 - 2017-09-22

2012

  • Vitenskapelig foredrag
    Tjelmeland, Håkon; Håkon, Toftaker. (2012) On the construction of discrete distributions from training images. Geostats 2012, Ninth International Geostatistics Congress , Oslo 2012-06-11 - 2012-06-15
  • Poster
    Håkon M., Austad; Tjelmeland, Håkon. (2012) Approximations and bounds for binary Markov random fields. Geostats 2012, Ninth International Geostatistics Congress , Oslo 2012-06-11 - 2012-06-15
  • Vitenskapelig foredrag
    Håkon, Toftaker; Tjelmeland, Håkon. (2012) Construction of binary multi-grid Markov random field models from training images. Geostats 2012, Ninth International Geostatistics Congress , Oslo 2012-06-11 - 2012-06-15

2011

  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (2011) An approximate forward-backward algorithm. Statistical Mechanics of Inference , Trondheim 2011-09-05 - 2011-09-08

2010

  • Vitenskapelig foredrag
    Sæbø, Solve; Helland, Inge; Tjelmeland, Håkon. (2010) Near optimal prediction from relevant components with Bayes PLS. Det 21. Norske kjemometrisymposium, 2010 , Sundvolden Hotel, Hole, Norway 2010-03-08 - 2010-03-10
  • Vitenskapelig foredrag
    Helland, Inge; Sæbø, Solve; Tjelmeland, Håkon. (2010) Bayes PLS: Near optimal prediction from relevant components. International Biometric Conference , Florianopolis, Brazil 2010-12-05 - 2010-12-10

2007

  • Vitenskapelig foredrag
    Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2007) Nonlinear Bayesian joint inversion of seismic reflection coefficients. EAGE Petroleum Geostatistics 2007, Cascais, Portugal , Cascais 2007-09-10 - 2007-09-14
  • Vitenskapelig foredrag
    Lødøen, Ole Petter; Tjelmeland, Håkon. (2007) Bayesian calibration of reservoir models using a coarse-scale reservoir simulator in the prior specification. EAGE, European Association of Geoscientists and Engineers Petroleum Geostatistics , Cascais 2007-09-10 - 2007-09-14
  • Vitenskapelig foredrag
    Hammer, Hugo Lewi; Tjelmeland, Håkon. (2007) Lithology/Fluid Prediction by Simulating from the Posterior of a Markov Chain Prior Bayesian Model. EAGE, European Association of Geoscientists and Engineers Petroleum Geostatistics , Cascais 2007-09-10 - 2007-09-14

2006

  • Vitenskapelig foredrag
    Eftedal, Olav Sande; Tjelmeland, Håkon; Brubakk, Alf O. (2006) Bubble detection and Bayesian statistics for validation of decompression tables. European Underwater and Baromedical Society 32nd Annual Meeting of the EUBS, Bergen, Norway, August 23.-26., 2006 , Bergen 2006-08-23 - 2006-08-26
  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (2006) A Bayesian Model for Cross-Study Differential Gene Expression. Inst. of statistics and decision sciences, Duke university seminar , Durham, North Carolina 2006-12-08 -

2003

  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (2003) Fitting Gaussian Markov random fields to Gaussian fields. Institute of Statistics and Decision Sciences, Duke University , North Carolina, USA 2003-10-03 -
  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (2003) Directional Metropolis-Hastings algorithms. Department of Statistics and Operations Research, The University of North Carolina at Chapell Hill , North Carolina, USA 2003-11-10 -

2001

  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (2001) Fitting Gaussian Markov random fields to Gaussian fields. The 53rd Session of the International Statistical Institute , Seoul, 22-29 August 2001

1999

  • Vitenskapelig foredrag
    Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (1999) Mode jumping proposals in MCMC. Second European Conference on Highly Structured Stochastic Syst ems , Pavia, Italia
  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (1999) Conditioning of permeability fields to production data: modelling and simulation algorithm. Highly Structured Stochastic Systems: Statistical modelling of spatial and space-time processes , Luminy, Frankrike

1998

  • Populærvitenskapelig foredrag
    Tjelmeland, Håkon. (1998) The Bayesian framework for knowledge and data integration. 3rd Norwegian Heterogeneity Conference , Gardermoen
  • Populærvitenskapelig foredrag
    Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (1998) Conditioning on dynamic data in a Bayesian framework. FORCE-seminar: Conditioning of Reservoir Models to Dynamic Data , [Mangler data]
  • Populærvitenskapelig foredrag
    Tjelmeland, Håkon; Omre, Henning; Otterlei, Cecilie; Oulie, Kjell Øivind. (1998) Integration of information from production tests and grain size distribution in water acquifers. Second IMA Conference on Modelling Permeable Rocks - Advances i n the Quantification of Geology for Petroleum and Groundwater A pplications , [Mangler data]

1997

  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (1997) A note on the Bayesian approach to history matching of reservoir characteristics. The Third Annual Conference of the International Association fo r Mathematical Geology , [Mangler data]

1996

  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (1996) Modeling of the spatial facies distribution by Markov random fields. The Fifth International Geostatistical Congress , [Mangler data]
  • Vitenskapelig foredrag
    Lia, Oddvar; Tjelmeland, Håkon; Kjellesvik, Lars Edward. (1996) Modelling of facies architecture by marked point models. The Fifth International Geostatistical Congress , Wollongong 1996-09-22 - 1996-09-27
  • Vitenskapelig foredrag
    Kjellesvik, Lars Edward; Lia, Oddvar; Tjelmeland, Håkon. (1996) A flexible stochastic model for different depositional environments (SPE35481). NPF/SPE European 3-D Reservoir Modelling Conference 1996-04-16 -

1992

  • Vitenskapelig foredrag
    Tyler, Kelly; Georgsen, Frode; Henriquez, Adolfo; Holden, Lars; Tjelmeland, Håkon. (1992) A program for 3-D modelling of heterogeneities in a fluvial reservoir. Delft University of Technology Third European Conference on the Mathematics of Oil Recovery , Delft 1992-06-17 -
  • Vitenskapelig foredrag
    Holden, Lars; Omre, Henning; Tjelmeland, Håkon. (1992) Integrated Reservoir Description, SPE 24261-MS. Society of Petroleum Engineers 1992 European Petroleum Computer Conference , Stavanger 1992-05-24 - 1992-05-27

1991

  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (1991) Simulering av kontinuerlige stokastiske felt. Geomøte -91, Oljedirektoratet. Stavanger 1991-02-14 -
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