Håkon Tjelmeland
About
Håkon Tjelmeland is a Professor at the Department of Mathematical Sciences. He belongs to The Statistics Group. Tjelmeland has a MSc in Industrial Mathematics and a PhD in Statistics, both from NTNU.
Research areas
- Computational and spatial statistics.
- Bayesian modelling and inference.
- Statistical modelling for petroleum reservoir evaluation.
Work Experience
- 2006- Professor in Statistics, NTNU.
- 1997-2006 Associate Professor in Statistics, NTNU.
- 2003-2004 Sabbatical at the Statistical and Applied Mathematical Sciences Institute (SAMSI) and Institute of Statistics and Decision Sciences, Duke University.
- 1992-1996 PhD position in Statistics at the Dept. of Mathematical Sciences, NTNU. The fall of 1994 Visiting Scholar at the Department of Statistics, University of Washington.
- 1988-1996 Research Scientist in the SAND-group (Statistical Analysis of Natural resource Data) at the Norwegian Computing Center.
External Projects
- Participant in the GAMES (Geophysics and Applied Mathematics in Exploration and Safe production) project.
- Participant in the SFI Center for Geophysical Forcasting.
- Has previously participated in the URE (Uncertainty in Reservoir Evaluation) project.
Professor Tjelmeland has supervised 6 graduated doctoral candidates and is currently supervising 2 PhD candidates.
Competencies
Publications
2022
- Loe, Margrethe Kvale; Tjelmeland, Håkon. (2022) Ensemble updating of categorical state vectors. Computational statistics (Zeitschrift).
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).
- Loe, Margrethe Kvale; Grana, Dario; Tjelmeland, Håkon. (2021) Geophysics-Based Fluid-Facies Predictions Using Ensemble Updating of Binary State Vectors. Mathematical Geosciences. volum 53.
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.
- Loe, Margrethe Kvale; Tjelmeland, Håkon. (2020) Ensemble updating of binary state vectors by maximising the expected number of unchanged components. Scandinavian Journal of Statistics.
2019
- Luo, Xin; Tjelmeland, Håkon. (2019) A multiple-try Metropolis–Hastings algorithm with tailored proposals. Computational statistics (Zeitschrift).
- Luo, Xin; Tjelmeland, Håkon. (2019) Prior specification for binary Markov mesh models. Statistics and computing. volum 29 (2).
- 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).
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.
2016
- Arnesen, Petter; Tjelmeland, Håkon. (2016) Prior specification of neighbourhood and interaction structure in binary Markov random fields. Statistics and computing.
- Austad, Haakon; Tjelmeland, Håkon. (2016) Approximate computations for binary Markov random fields and their use in Bayesian models. Statistics and computing.
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).
- 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.
2013
- Toftaker, Håkon; Tjelmeland, Håkon. (2013) Construction of Binary Multi-grid Markov Random Field Prior Models from Training Images. Mathematical Geosciences. volum 45 (4).
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).
- Helland, Inge Svein; Sæbø, Solve; Tjelmeland, Håkon. (2012) Near optimal prediction from relevant components. Scandinavian Journal of Statistics. volum 39 (4).
- 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).
2011
- Hammer, Hugo Lewi; Tjelmeland, Håkon. (2011) Approximate forward–backward algorithm for a switching linear Gaussian model. Computational Statistics & Data Analysis. volum 55 (1).
- Pfuhl, Gerit; Tjelmeland, Håkon; Biegler, Robert. (2011) Precision and Reliability in Animal Navigation. Bulletin of Mathematical Biology. volum 73 (5).
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).
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).
- 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).
- 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.
2008
- Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis--Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
- Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis-Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
- Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2008) Non-linear Bayesian joint inversion of seismic reflection coefficients. Geophysical Journal International. volum 173 (1).
- Shabalin, AA; Tjelmeland, Håkon; Fan, C; Perou, CM; Nobel, AB. (2008) Merging two gene-expression studies via cross-platform normalization. Bioinformatics. volum 24.
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.
- Wu, YH; Tjelmeland, Håkon; West, M. (2007) Bayesian CART: Prior specification and posterior simulation. Journal of Computational And Graphical Statistics (JCGS). volum 16.
2006
- Eidsvik, Jo; Tjelmeland, Håkon. (2006) On directional Metropolis-Hastings algorithms. Statistics and computing. volum 16 (1).
2005
- Tjelmeland, Håkon; Eidsvik, Jo. (2005) Directional Metropolis-Hastings updates for posteriors with nonlinear likelihoods. Geostatistics Banff 2004.
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.
2003
- Tjelmeland, Håkon; Lund, Kjetill Vassmo. (2003) Bayesian modelling of spatial compositional data. Journal of Applied Statistics. volum 30.
2002
- Rue, Håvard; Tjelmeland, Håkon. (2002) Fitting Gaussian Markov random fields to Gaussian fields. Scandinavian Journal of Statistics.
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.
- Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (2001) Mode jumping proposals in MCMC. Scandinavian Journal of Statistics. volum 28 (1).
- Holden, Lars; Skare, Øivind; Omre, Henning; Tjelmeland, Håkon. (2001) Sampling algorithms for Bayesian history matching. 2001. NR-notat (SAND/04/01).
1998
- Tjelmeland, Håkon; Besag, Julian. (1998) Markov random fields with higher order interactions. Scandinavian Journal of Statistics. volum 25 (3).
1997
- Omre, Henning; Tjelmeland, Håkon. (1997) Petroleum geostatistics. Geostatistics Wollongong '96.
- Tjelmeland, Håkon; Omre, Henning. (1997) A complex sand-shale facies model conditioned on observations from wells, seismics and production. Geostatistics Wollongong '96.
- 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).
1996
- Lia, Oddvar; Tjelmeland, Håkon; Kjellesvik, Lars Edward. (1996) Modeling of facies architecture by marked point models. Ukjent.
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.
- Tjelmeland, Håkon; Lia, Oddvar. (1995) A marked point process model in reservoir characterization. 1995.
1994
- Egeland, Thore; Omre, Henning; Lia, Oddvar; Tjelmeland, Håkon; Holden, Lars; Andersen, Tove. (1994) GRUS data analysis. 1994. NR-notat (SAND/17/94).
- 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).
- 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).
- 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).
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).
- 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.
- 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).
- Tjelmeland, Håkon; Holden, Lars. (1993) Semi-markov random fields. Geostatistics Tróia '92.
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).
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1992) Simulation of random functions on large lattices. Ukjent.
- Omre, Henning; Tjelmeland, Håkon. (1992) Modeling of the Statfjord formation Statfjord field. Stochastic production evaluation - Phase III. 1992.
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).
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1991) Simulation of random functions on large lattices. 1991.
- Omre, Henning; Tjelmeland, Håkon; Qi, Yuanchang; Hinderaker, Leif. (1991) Assessment of uncertainty in the production characteristics of a sandstone reservoir. Ukjent.
1990
- Holden, Lars; Tjelmeland, Håkon. (1990) A program system for simulation of reservoir architecture and reservoir properties. 1990. NR-notat (SAND/10/90).
- Holden, Lars; Tjelmeland, Håkon. (1990) MOHERES - a program system for simulation of reservoir properties. 1990. NR-notat (SAND/19/90).
- Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) A stochastic model for shale distribution in petroleum reservoirs. 1990.
- Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) Large scale barriers in extensively drilled reservoirs. 1990.
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon; Claesson, Lennart; Holter, Cathrine. (1990) Calcite cementation: description and production consequences. Ukjent.
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.
- Holbæk-Hanssen, Erik; Tjelmeland, Håkon; Wang, Bo; Karpuz, Ridvan. (1989) Classification of sea-ice using SAR data. Ukjent.
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1989) Simulation of calcite cemented barriers in the TROLL field. 1989.
- Omre, Henning; Tjelmeland, Håkon. (1989) BARESI - BArriers in REservoirs by SImulation. 1989.
- Tjelmeland, Håkon; Omre, Henning. (1989) Modelling of the Statfjord formation, Statfjord field. Stochastic reservoir description. Phase II. 1989.
- Tjelmeland, Håkon; Wang, Bo. (1989) Filtrering og klassifikasjon av SAR-bilder over hav-is. 1989. ISBN 82-539-0311-1.
1988
- Halvorsen, Kjetil B.; Omre, Henning; Tjelmeland, Håkon. (1988) Simulating fractile characteristics of petroleum reservoirs. 1988.
- Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1988) Modeling of the Statfjord formation, Statfjord field; Stochastic reservoir description, phase I. 1988.
Journal publications
- Loe, Margrethe Kvale; Tjelmeland, Håkon. (2022) Ensemble updating of categorical state vectors. Computational statistics (Zeitschrift).
- 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).
- Loe, Margrethe Kvale; Grana, Dario; Tjelmeland, Håkon. (2021) Geophysics-Based Fluid-Facies Predictions Using Ensemble Updating of Binary State Vectors. Mathematical Geosciences. volum 53.
- 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.
- Loe, Margrethe Kvale; Tjelmeland, Håkon. (2020) Ensemble updating of binary state vectors by maximising the expected number of unchanged components. Scandinavian Journal of Statistics.
- Luo, Xin; Tjelmeland, Håkon. (2019) A multiple-try Metropolis–Hastings algorithm with tailored proposals. Computational statistics (Zeitschrift).
- Luo, Xin; Tjelmeland, Håkon. (2019) Prior specification for binary Markov mesh models. Statistics and computing. volum 29 (2).
- 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).
- 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.
- Arnesen, Petter; Tjelmeland, Håkon. (2016) Prior specification of neighbourhood and interaction structure in binary Markov random fields. Statistics and computing.
- Austad, Haakon; Tjelmeland, Håkon. (2016) Approximate computations for binary Markov random fields and their use in Bayesian models. Statistics and computing.
- Arnesen, Petter; Tjelmeland, Håkon. (2015) Fully Bayesian Binary Markov Random Field Models: Prior Specification and Posterior Simulation. Scandinavian Journal of Statistics. volum 42 (4).
- 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.
- Toftaker, Håkon; Tjelmeland, Håkon. (2013) Construction of Binary Multi-grid Markov Random Field Prior Models from Training Images. Mathematical Geosciences. volum 45 (4).
- 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).
- Helland, Inge Svein; Sæbø, Solve; Tjelmeland, Håkon. (2012) Near optimal prediction from relevant components. Scandinavian Journal of Statistics. volum 39 (4).
- 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).
- Hammer, Hugo Lewi; Tjelmeland, Håkon. (2011) Approximate forward–backward algorithm for a switching linear Gaussian model. Computational Statistics & Data Analysis. volum 55 (1).
- Pfuhl, Gerit; Tjelmeland, Håkon; Biegler, Robert. (2011) Precision and Reliability in Animal Navigation. Bulletin of Mathematical Biology. volum 73 (5).
- 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).
- 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).
- 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).
- 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.
- Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis--Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
- Hammer, Hugo Lewi; Tjelmeland, Håkon. (2008) Control variates for the Metropolis-Hastings algorithm. Scandinavian Journal of Statistics. volum 35.
- Rabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2008) Non-linear Bayesian joint inversion of seismic reflection coefficients. Geophysical Journal International. volum 173 (1).
- Shabalin, AA; Tjelmeland, Håkon; Fan, C; Perou, CM; Nobel, AB. (2008) Merging two gene-expression studies via cross-platform normalization. Bioinformatics. volum 24.
- 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.
- Wu, YH; Tjelmeland, Håkon; West, M. (2007) Bayesian CART: Prior specification and posterior simulation. Journal of Computational And Graphical Statistics (JCGS). volum 16.
- Eidsvik, Jo; Tjelmeland, Håkon. (2006) On directional Metropolis-Hastings algorithms. Statistics and computing. volum 16 (1).
- 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.
- Tjelmeland, Håkon; Lund, Kjetill Vassmo. (2003) Bayesian modelling of spatial compositional data. Journal of Applied Statistics. volum 30.
- Rue, Håvard; Tjelmeland, Håkon. (2002) Fitting Gaussian Markov random fields to Gaussian fields. Scandinavian Journal of Statistics.
- 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.
- Tjelmeland, Håkon; Hegstad, Bjørn Kåre. (2001) Mode jumping proposals in MCMC. Scandinavian Journal of Statistics. volum 28 (1).
- Tjelmeland, Håkon; Besag, Julian. (1998) Markov random fields with higher order interactions. Scandinavian Journal of Statistics. volum 25 (3).
- 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).
- Lia, Oddvar; Tjelmeland, Håkon; Kjellesvik, Lars Edward. (1996) Modeling of facies architecture by marked point models. Ukjent.
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1992) Simulation of random functions on large lattices. Ukjent.
- Omre, Henning; Tjelmeland, Håkon; Qi, Yuanchang; Hinderaker, Leif. (1991) Assessment of uncertainty in the production characteristics of a sandstone reservoir. Ukjent.
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon; Claesson, Lennart; Holter, Cathrine. (1990) Calcite cementation: description and production consequences. Ukjent.
- 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.
- Holbæk-Hanssen, Erik; Tjelmeland, Håkon; Wang, Bo; Karpuz, Ridvan. (1989) Classification of sea-ice using SAR data. Ukjent.
Report/dissertation
- Holden, Lars; Skare, Øivind; Omre, Henning; Tjelmeland, Håkon. (2001) Sampling algorithms for Bayesian history matching. 2001. NR-notat (SAND/04/01).
- Tjelmeland, Håkon; Lia, Oddvar. (1995) A marked point process model in reservoir characterization. 1995.
- Egeland, Thore; Omre, Henning; Lia, Oddvar; Tjelmeland, Håkon; Holden, Lars; Andersen, Tove. (1994) GRUS data analysis. 1994. NR-notat (SAND/17/94).
- 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).
- 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).
- 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).
- 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).
- 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.
- 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).
- 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).
- Omre, Henning; Tjelmeland, Håkon. (1992) Modeling of the Statfjord formation Statfjord field. Stochastic production evaluation - Phase III. 1992.
- 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).
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1991) Simulation of random functions on large lattices. 1991.
- Holden, Lars; Tjelmeland, Håkon. (1990) A program system for simulation of reservoir architecture and reservoir properties. 1990. NR-notat (SAND/10/90).
- Holden, Lars; Tjelmeland, Håkon. (1990) MOHERES - a program system for simulation of reservoir properties. 1990. NR-notat (SAND/19/90).
- Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) A stochastic model for shale distribution in petroleum reservoirs. 1990.
- Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1990) Large scale barriers in extensively drilled reservoirs. 1990.
- Omre, Henning; Sølna, Knut; Tjelmeland, Håkon. (1989) Simulation of calcite cemented barriers in the TROLL field. 1989.
- Omre, Henning; Tjelmeland, Håkon. (1989) BARESI - BArriers in REservoirs by SImulation. 1989.
- Tjelmeland, Håkon; Omre, Henning. (1989) Modelling of the Statfjord formation, Statfjord field. Stochastic reservoir description. Phase II. 1989.
- Tjelmeland, Håkon; Wang, Bo. (1989) Filtrering og klassifikasjon av SAR-bilder over hav-is. 1989. ISBN 82-539-0311-1.
- Halvorsen, Kjetil B.; Omre, Henning; Tjelmeland, Håkon. (1988) Simulating fractile characteristics of petroleum reservoirs. 1988.
- Høiberg, Jan; Omre, Henning; Tjelmeland, Håkon. (1988) Modeling of the Statfjord formation, Statfjord field; Stochastic reservoir description, phase I. 1988.
Part of book/report
- Tjelmeland, Håkon; Eidsvik, Jo. (2005) Directional Metropolis-Hastings updates for posteriors with nonlinear likelihoods. Geostatistics Banff 2004.
- Omre, Henning; Tjelmeland, Håkon. (1997) Petroleum geostatistics. Geostatistics Wollongong '96.
- Tjelmeland, Håkon; Omre, Henning. (1997) A complex sand-shale facies model conditioned on observations from wells, seismics and production. Geostatistics Wollongong '96.
- 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.
- Tjelmeland, Håkon; Holden, Lars. (1993) Semi-markov random fields. Geostatistics Tróia '92.