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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
  • Statistikk

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Se alle publikasjoner i Cristin

2022

  • Loe, Margrethe Kvale; Tjelmeland, Håkon. (2022) Ensemble updating of categorical state vectors. Computational statistics (Zeitschrift). volum 37.
    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. volum 16 (1).
    Vitenskapelig artikkel
  • Loe, Margrethe Kvale; Grana, Dario; Tjelmeland, Håkon. (2021) Geophysics-Based Fluid-Facies Predictions Using Ensemble Updating of Binary State Vectors. Mathematical Geosciences. volum 53.
    Vitenskapelig artikkel

2020

  • 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. volum 11.
    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

2019

  • Luo, Xin; Tjelmeland, Håkon. (2019) A multiple-try Metropolis–Hastings algorithm with tailored proposals. Computational statistics (Zeitschrift).
    Vitenskapelig artikkel
  • Luo, Xin; Tjelmeland, Håkon. (2019) Prior specification for binary Markov mesh models. Statistics and computing. volum 29 (2).
    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. volum 67 (3).
    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. volum 1.
    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

  • Arnesen, Petter; Tjelmeland, Håkon. (2015) Fully Bayesian Binary Markov Random Field Models: Prior Specification and Posterior Simulation. Scandinavian Journal of Statistics. volum 42 (4).
    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). volum 9250.
    Vitenskapelig artikkel

2013

  • Toftaker, Håkon; Tjelmeland, Håkon. (2013) Construction of Binary Multi-grid Markov Random Field Prior Models from Training Images. Mathematical Geosciences. volum 45 (4).
    Vitenskapelig artikkel

2012

  • 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. volum 60 (3).
    Vitenskapelig artikkel
  • Helland, Inge Svein; Sæbø, Solve; Tjelmeland, Håkon. (2012) Near optimal prediction from relevant components. Scandinavian Journal of Statistics. volum 39 (4).
    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). volum 21 (3).
    Vitenskapelig artikkel

2011

  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2011) Approximate forward–backward algorithm for a switching linear Gaussian model. Computational Statistics & Data Analysis. volum 55 (1).
    Vitenskapelig artikkel
  • Pfuhl, Gerit; Tjelmeland, Håkon; Biegler, Robert. (2011) Precision and Reliability in Animal Navigation. Bulletin of Mathematical Biology. volum 73 (5).
    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. volum 10 (1).
    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. volum 78 (4).
    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. volum 104 (488).
    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. volum 104.
    Vitenskapelig artikkel

2008

  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis--Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis-Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
    Vitenskapelig artikkel
  • Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2008) Non-linear Bayesian joint inversion of seismic reflection coefficients. Geophysical Journal International. volum 173 (1).
    Vitenskapelig artikkel
  • Shabalin, AA; Tjelmeland, Håkon; Fan, C; Perou, CM; Nobel, AB. (2008) Merging two gene-expression studies via cross-platform normalization. Bioinformatics. volum 24.
    Vitenskapelig artikkel

2007

  • 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. volum 78.
    Vitenskapelig artikkel
  • Wu, YH; Tjelmeland, Håkon; West, M. (2007) Bayesian CART: Prior specification and posterior simulation. Journal of Computational And Graphical Statistics (JCGS). volum 16.
    Vitenskapelig artikkel

2006

  • Eidsvik, Jo; Tjelmeland, Håkon. (2006) On directional Metropolis-Hastings algorithms. Statistics and computing. volum 16 (1).
    Vitenskapelig artikkel

2005

  • Tjelmeland, Håkon; Eidsvik, Jo. (2005) Directional Metropolis-Hastings updates for posteriors with nonlinear likelihoods. Geostatistics Banff 2004.
    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. volum 66.
    Vitenskapelig artikkel

2003

  • Tjelmeland, Håkon; Lund, Kjetill Vassmo. (2003) Bayesian modelling of spatial compositional data. Journal of Applied Statistics. volum 30.
    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. volum 63.
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (2001) Mode jumping proposals in MCMC. Scandinavian Journal of Statistics. volum 28 (1).
    Vitenskapelig artikkel
  • Holden, Lars; Skare, Øivind; Omre, Henning; Tjelmeland, Håkon. (2001) Sampling algorithms for Bayesian history matching. 2001. NR-notat (SAND/04/01).
    Rapport

1998

  • Tjelmeland, Håkon; Besag, Julian. (1998) Markov random fields with higher order interactions. Scandinavian Journal of Statistics. volum 25 (3).
    Vitenskapelig artikkel

1997

  • Omre, Henning; Tjelmeland, Håkon. (1997) Petroleum geostatistics. Geostatistics Wollongong '96.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tjelmeland, Håkon; Omre, Henning. (1997) A complex sand-shale facies model conditioned on observations from wells, seismics and production. Geostatistics Wollongong '96.
    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. volum 81 (5).
    Vitenskapelig artikkel

1996

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

1995

  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; Egeland, Thore; Andersen, Tove; Hustad, Odd Steve; Qi, Yuanchang. (1995) The great reservoir uncertainty study - GRUS. Profit, Project Summary Reports, Reservoir Characterization Near Well Flow.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tjelmeland, Håkon; Lia, Oddvar. (1995) A marked point process model in reservoir characterization. 1995.
    Rapport

1994

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

1993

  • 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. 1993. 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. 1993.
    Rapport
  • Storvik, Geir Olve; Egeland, Thore; Holden, Lars; Tjelmeland, Håkon. (1993) Markov Chain simulations for analysis of marked point processes. 1993. Report at the Norwegian Computing Center (869).
    Rapport
  • Tjelmeland, Håkon; Holden, Lars. (1993) Semi-markov random fields. Geostatistics Tróia '92.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

1992

  • 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. 1992. NR-notat (SAND/12/92).
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1992) Simulation of random functions on large lattices. Ukjent.
    Vitenskapelig artikkel
  • Omre, Henning; Tjelmeland, Håkon. (1992) Modeling of the Statfjord formation Statfjord field. Stochastic production evaluation - Phase III. 1992.
    Rapport

1991

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

1990

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

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
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1989) Simulation of calcite cemented barriers in the TROLL field. 1989.
    Rapport
  • Omre, Henning; Tjelmeland, Håkon. (1989) BARESI - BArriers in REservoirs by SImulation. 1989.
    Rapport
  • Tjelmeland, Håkon; Omre, Henning. (1989) Modelling of the Statfjord formation, Statfjord field. Stochastic reservoir description. Phase II. 1989.
    Rapport
  • Tjelmeland, Håkon; Wang, Bo. (1989) Filtrering og klassifikasjon av SAR-bilder over hav-is. 1989. ISBN 82-539-0311-1.
    Rapport

1988

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

Tidsskriftspublikasjoner

  • Loe, Margrethe Kvale; Tjelmeland, Håkon. (2022) Ensemble updating of categorical state vectors. Computational statistics (Zeitschrift). volum 37.
    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. volum 16 (1).
    Vitenskapelig artikkel
  • Loe, Margrethe Kvale; Grana, Dario; Tjelmeland, Håkon. (2021) Geophysics-Based Fluid-Facies Predictions Using Ensemble Updating of Binary State Vectors. Mathematical Geosciences. volum 53.
    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. volum 11.
    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
  • Luo, Xin; Tjelmeland, Håkon. (2019) A multiple-try Metropolis–Hastings algorithm with tailored proposals. Computational statistics (Zeitschrift).
    Vitenskapelig artikkel
  • Luo, Xin; Tjelmeland, Håkon. (2019) Prior specification for binary Markov mesh models. Statistics and computing. volum 29 (2).
    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. volum 67 (3).
    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. volum 1.
    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
  • Arnesen, Petter; Tjelmeland, Håkon. (2015) Fully Bayesian Binary Markov Random Field Models: Prior Specification and Posterior Simulation. Scandinavian Journal of Statistics. volum 42 (4).
    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). volum 9250.
    Vitenskapelig artikkel
  • Toftaker, Håkon; Tjelmeland, Håkon. (2013) Construction of Binary Multi-grid Markov Random Field Prior Models from Training Images. Mathematical Geosciences. volum 45 (4).
    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. volum 60 (3).
    Vitenskapelig artikkel
  • Helland, Inge Svein; Sæbø, Solve; Tjelmeland, Håkon. (2012) Near optimal prediction from relevant components. Scandinavian Journal of Statistics. volum 39 (4).
    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). volum 21 (3).
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2011) Approximate forward–backward algorithm for a switching linear Gaussian model. Computational Statistics & Data Analysis. volum 55 (1).
    Vitenskapelig artikkel
  • Pfuhl, Gerit; Tjelmeland, Håkon; Biegler, Robert. (2011) Precision and Reliability in Animal Navigation. Bulletin of Mathematical Biology. volum 73 (5).
    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. volum 10 (1).
    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. volum 78 (4).
    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. volum 104 (488).
    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. volum 104.
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis--Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
    Vitenskapelig artikkel
  • Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis-Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
    Vitenskapelig artikkel
  • Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2008) Non-linear Bayesian joint inversion of seismic reflection coefficients. Geophysical Journal International. volum 173 (1).
    Vitenskapelig artikkel
  • Shabalin, AA; Tjelmeland, Håkon; Fan, C; Perou, CM; Nobel, AB. (2008) Merging two gene-expression studies via cross-platform normalization. Bioinformatics. volum 24.
    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. volum 78.
    Vitenskapelig artikkel
  • Wu, YH; Tjelmeland, Håkon; West, M. (2007) Bayesian CART: Prior specification and posterior simulation. Journal of Computational And Graphical Statistics (JCGS). volum 16.
    Vitenskapelig artikkel
  • Eidsvik, Jo; Tjelmeland, Håkon. (2006) On directional Metropolis-Hastings algorithms. Statistics and computing. volum 16 (1).
    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. volum 66.
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Lund, Kjetill Vassmo. (2003) Bayesian modelling of spatial compositional data. Journal of Applied Statistics. volum 30.
    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. volum 63.
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (2001) Mode jumping proposals in MCMC. Scandinavian Journal of Statistics. volum 28 (1).
    Vitenskapelig artikkel
  • Tjelmeland, Håkon; Besag, Julian. (1998) Markov random fields with higher order interactions. Scandinavian Journal of Statistics. volum 25 (3).
    Vitenskapelig artikkel
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; Egeland, Thore. (1997) Uncertainties in reservoir production forecasts. American Association of Petroleum Geologists Bulletin. volum 81 (5).
    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. Geostatistics Banff 2004.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Omre, Henning; Tjelmeland, Håkon. (1997) Petroleum geostatistics. Geostatistics Wollongong '96.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tjelmeland, Håkon; Omre, Henning. (1997) A complex sand-shale facies model conditioned on observations from wells, seismics and production. Geostatistics Wollongong '96.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; Egeland, Thore; Andersen, Tove; Hustad, Odd Steve; Qi, Yuanchang. (1995) The great reservoir uncertainty study - GRUS. Profit, Project Summary Reports, Reservoir Characterization Near Well Flow.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tjelmeland, Håkon; Holden, Lars. (1993) Semi-markov random fields. Geostatistics Tróia '92.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

Rapport

  • Holden, Lars; Skare, Øivind; Omre, Henning; Tjelmeland, Håkon. (2001) Sampling algorithms for Bayesian history matching. 2001. NR-notat (SAND/04/01).
    Rapport
  • Tjelmeland, Håkon; Lia, Oddvar. (1995) A marked point process model in reservoir characterization. 1995.
    Rapport
  • Egeland, Thore; Omre, Henning; Lia, Oddvar; Tjelmeland, Håkon; Holden, Lars; Andersen, Tove. (1994) GRUS data analysis. 1994. NR-notat (SAND/17/94).
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve; Qi, Yuanchang. (1994) GRUS - Great reservoir uncertainty study. Documentation of model. 1994. NR-notat (SAND/12/94).
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve; Qi, Yuanchang. (1994) GRUS - Great reservoir uncertainty study. Documentation of results. 1994. NR-notat (SAND/13/94).
    Rapport
  • Lia, Oddvar; Omre, Henning; Tjelmeland, Håkon; Holden, Lars; MacDonald, Alister; Hustad, Odd Steve; Qi, Yuanchang. (1994) GRUS - great reservoir uncertainty study summary report. 1994. NR-notat (SAND/11/94).
    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. 1993. 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. 1993.
    Rapport
  • Storvik, Geir Olve; Egeland, Thore; Holden, Lars; Tjelmeland, Håkon. (1993) Markov Chain simulations for analysis of marked point processes. 1993. Report at the Norwegian Computing Center (869).
    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. 1992. NR-notat (SAND/12/92).
    Rapport
  • Omre, Henning; Tjelmeland, Håkon. (1992) Modeling of the Statfjord formation Statfjord field. Stochastic production evaluation - Phase III. 1992.
    Rapport
  • Omre, Henning; Egeland, Thore; Holden, Lars; Lia, Oddvar; Tjelmeland, Håkon; MacDonald, Alister; Hustad, Odd Steve. (1991) GRUS-report: Outline of models and test plan. 1991. NR-notat (SAND/30/91).
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1991) Simulation of random functions on large lattices. 1991.
    Rapport
  • Holden, Lars; Tjelmeland, Håkon. (1990) A program system for simulation of reservoir architecture and reservoir properties. 1990. NR-notat (SAND/10/90).
    Rapport
  • Holden, Lars; Tjelmeland, Håkon. (1990) MOHERES - a program system for simulation of reservoir properties. 1990. NR-notat (SAND/19/90).
    Rapport
  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) A stochastic model for shale distribution in petroleum reservoirs. 1990.
    Rapport
  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) Large scale barriers in extensively drilled reservoirs. 1990.
    Rapport
  • Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1989) Simulation of calcite cemented barriers in the TROLL field. 1989.
    Rapport
  • Omre, Henning; Tjelmeland, Håkon. (1989) BARESI - BArriers in REservoirs by SImulation. 1989.
    Rapport
  • Tjelmeland, Håkon; Omre, Henning. (1989) Modelling of the Statfjord formation, Statfjord field. Stochastic reservoir description. Phase II. 1989.
    Rapport
  • Tjelmeland, Håkon; Wang, Bo. (1989) Filtrering og klassifikasjon av SAR-bilder over hav-is. 1989. ISBN 82-539-0311-1.
    Rapport
  • Halvorsen, Kjetil B.; Omre, Henning; Tjelmeland, Håkon. (1988) Simulating fractile characteristics of petroleum reservoirs. 1988.
    Rapport
  • Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1988) Modeling of the Statfjord formation, Statfjord field; Stochastic reservoir description, phase I. 1988.
    Rapport

Undervisning

Emner

  • TMA4275 - Levetidsanalyse
  • TMA4245 - Statistikk
  • TMA4240 - Statistikk

Formidling

2022

  • Vitenskapelig foredrag
    Gryvill, Håkon; Tjelmeland, Håkon. (2022) A sparse matrix formulation of the model-based ensemble Kalman filter. EnKF workshop . NORCE; 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 meeting . GAMES; Trondheim. 2022-05-09 - 2022-05-10.
  • Vitenskapelig foredrag
    Tjelmeland, Håkon; Gryvill, Håkon; Loe, Margrethe Kvale. (2022) Model-based ensemble Kalman filter. 21st Annual Conference of the International Association for Mathematical Geosciences . 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. 2021 EnKF Workshop . NORCE; 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. The 53rd Annual Meeting of the Society for Mathematical Psychology (MathPsych2020) . Mathematical Psychology Association; virtual (Toronto). 2020-07-20 - 2020-08-01.

2019

  • Vitenskapelig foredrag
    Loe, Margrethe Kvale; Tjelmeland, Håkon. (2019) Ensemble Updating of Binary State Vectors by Maximising the Expected Number of Unchanged Components. Petroleum Geostatistics 2019 . EAGE; Firenze. 2019-09-02 - 2019-09-06.
  • Poster
    Pfuhl, Gerit; Tjelmeland, Håkon. (2019) Probabilistic reasoning in schizophrenia is volatile but not biased. Computational and cognitive neuroscience conference . CCN; Berlin. 2019-09-13 - 2019-09-16.
  • Vitenskapelig foredrag
    Tjelmeland, Håkon; Luo, Xin; Fjeldstad, Torstein Mæland. (2019) A Flexible Markov Mesh Prior for Lithology/fluid Class Prediction. Petroleum Geostatistics 2019 . EAGE; 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?. Brain Prize conference Neuroscience of Prediction . Lundbeckfond; Rungstedgaard. 2018-04-15 - 2018-04-18.

2017

  • Poster
    Kreis, Isabel Viola; Sandvik, Kristin; Tjelmeland, Håkon; Biegler, Robert; Pfuhl, Gerit. (2017) Probabilistic inference in psychosis and autism. 5th National PhD Conference in Neuroscience . Norwegian Research School in Neuroscience; Sommarøy, TROMS. 2017-09-20 - 2017-09-22.
  • 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.

2012

  • 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.
  • 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.

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
    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.
  • 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.

2007

  • Vitenskapelig foredrag
    Hammer, Hugo Lewi; Tjelmeland, Håkon. (2007) Lithology/Fluid Prediction by Simulating from the Posterior of a Markov Chain Prior Bayesian Model. Petroleum Geostatistics . EAGE, European Association of Geoscientists and Engineers; 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. Petroleum Geostatistics . EAGE, European Association of Geoscientists and Engineers; Cascais. 2007-09-10 - 2007-09-14.
  • Vitenskapelig foredrag
    Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2007) Nonlinear Bayesian joint inversion of seismic reflection coefficients. Petroleum Geostatistics 2007, Cascais, Portugal . EAGE; 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. 32nd Annual Meeting of the EUBS, Bergen, Norway, August 23.-26., 2006 . European Underwater and Baromedical Society; Bergen. 2006-08-23 - 2006-08-26.
  • Vitenskapelig foredrag
    Tjelmeland, Håkon. (2006) A Bayesian Model for Cross-Study Differential Gene Expression. seminar . Inst. of statistics and decision sciences, Duke university; Durham, North Carolina. 2006-12-08.

2003

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

2001

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

1999

  • 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 . [Mangler data]; Luminy, Frankrike.
  • Vitenskapelig foredrag
    Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (1999) Mode jumping proposals in MCMC. Second European Conference on Highly Structured Stochastic Syst ems . [Mangler data]; Pavia, Italia.

1998

  • Populærvitenskapelig foredrag
    Tjelmeland, Håkon. (1998) The Bayesian framework for knowledge and data integration. 3rd Norwegian Heterogeneity Conference . [Mangler data]; 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]; [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]; [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]; [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]; [Mangler data].
  • 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.
  • Vitenskapelig foredrag
    Lia, Oddvar; Tjelmeland, Håkon; Kjellesvik, Lars Edward. (1996) Modelling of facies architecture by marked point models. The Fifth International Geostatistical Congress . [Mangler data]; Wollongong. 1996-09-22 - 1996-09-27.

1992

  • Vitenskapelig foredrag
    Holden, Lars; Omre, Henning; Tjelmeland, Håkon. (1992) Integrated Reservoir Description, SPE 24261-MS. 1992 European Petroleum Computer Conference . Society of Petroleum Engineers; Stavanger. 1992-05-24 - 1992-05-27.
  • 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. Third European Conference on the Mathematics of Oil Recovery . Delft University of Technology; Delft. 1992-06-17.

1991

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