Morten D?hlen

Professor

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Email mortend@uio.no

Mobile phone +47 90944612

Username

Visiting address Gaustadal��en 23B

Postal address Postboks 1080 Blindern N-0316 OSLO

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Academic Interests

I am a professor of informatics, primarily working on interdisciplinary issues related to artificial intelligence, machine learning, and knowledge representation. My academic background is in computational science, with an emphasis on numerical analysis, geometric modeling, and machine learning. Within these fields, I have been particularly interested in the modeling and representation of large datasets for machine learning and visualization purposes. In recent years, I have been especially engaged in research related to digitalization and the green transition.

Teaching

I have taught various courses on undergraduate and graduate level, mainly within mathematics (numerical methods and signal processing) and computer science (programming, digital representation and data structures). In addition, I have been involved as a lecturer in leadership development programs.

Employment history (short resym��)

Since January 2021 until September 2025 I was leader of dScience - Centre for Computational and Dat Science - at the University of Oslo. Before that I was Dean at The Faculty of Mathematics and Natural sciences for eight years(2013-2020) and Head of the Department of Informatics for eight years (2005-2012). Earlier in my career I have had director positions at SINTEF, the Research Council of Norway and Simula Research Laboratory AS.

Other appointments

I haqve since 2014 been chairman of the board for the Swedish e-Science Research Centre (SeRC).

?vrelid, Egil; Bygstad, Bendik; Ludvigsen, Sten Runar & D?hlen, Morten (2023). Dual Digitalization: A Framework for Digital Transformations of Higher Education. In Pinheiro, Romulo; T?mte, Cathrine Edelhard; Barman, Linda; Degn, Lise & Geschwind, Lars (Ed.), Digital Transformations in Nordic Higher Education. Palgrave Macmillan. ISSN 978-3-031-27758-0. p. 53�C74. doi: 10.1007/978-3-031-27758-0_3.
Bygstad, Bendik; ?vrelid, Egil; Ludvigsen, Sten Runar & D?hlen, Morten (2022). From dual digitalization to digital learning space: Exploring the digital transformation of higher education. Computers & Education. ISSN 0360-1315. 182. doi: 10.1016/j.compedu.2022.104463. Full text in Research Archive
Dyken, Christopher; D?hlen, Morten & Sevaldrud, Thomas (2009). Simultaneous curve simplification. Journal of Geographical Systems. ISSN 1435-5930. 11(3), p. 273�C289. doi: 10.1007/s10109-009-0078-8.
Hjelle, ?yvind & D?hlen, Morten (2005). Multilevel Least Squares Approximation of Scattered Data over Binary Triangulations. Computing and Visualization in Science. ISSN 1432-9360. 8(2), p. 83�C91.
D?hlen, Morten; Fimland, Morten & Hjelle, ?yvind (2001). A Triangle-based Carrier for Geographical Data. In Halls, Peter (Eds.), Spatial Information and the Environment. Taylor & Francis, London. ISSN 04-15-25362-4. p. 105�C120. Show summary
In this paper we discuss a framework for representation and maintenance of multi-resolution terrain and network data. We use a triangle-based representation of the terrain surface, and representations of curve networks (river systems, roads, railroad, etc. are integrated into the triangle-based representation. We introduce a data model for the representation and we discuss issues connected to the construction of the integrated representation of data. Several examples are provided.
D?hlen, Morten; Lyche, Tom Johan; Morken, Knut; Schneider, Robert & Seidel, Hans-Peter (2000). Multiresolution analysis based on quadratic Hermite interpolation on triangles. Journal of Computational and Applied Mathematics. ISSN 0377-0427. 119, p. 97�C114.
Bjaalie, Jan G.; D?hlen, Morten & Stensby, Trond Vidar (1997). Surface modelling from biomedical data. In Tveito, Aslak & D?hlen, Morten (Ed.), Numerical methods and software tools in industrial mathematics. Birkh?user, Boston. ISSN 0-8176-3973-X. p. 329�C346.
Arge, Erlend; D?hlen, Morten & Tveito, Aslak (1995). Approximation of scattered data using smooth grid functions. Journal of Computational and Applied Mathematics. ISSN 0377-0427. 59, p. 191�C205.
Arge, Erlend; D?hlen, Morten & Tveito, Aslak (1993). Box-splines; A computational study. Journal of Computational and Applied Mathematics. ISSN 0377-0427. 44, p. 303�C329.
Hjelle, ?yvind & D?hlen, Morten (1989). Datareduksjon av h?gdekurver p? digitale kart. Kart og Plan. ISSN 0047-3278. 49|(5), p. 469�C471.

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D?hlen, Morten; Floater, Michael S.; Lyche, Tom ; Merrien, Jean-Louis; M?rken, Knut Martin & Schumaker, Larry (2010). Mathematical Methods for Curves and Surfaces. Springer. ISBN 978-3-642-11619-3. 465 p.
Hjelle, ?yvind & D?hlen, Morten (2006). Triangulations and Applications. Springer. ISBN 3-540-33260-X. 242 p.
D?hlen, Morten; M?rken, Knut Martin & Schumaker, Larry (2005). Mathematical Methods for Curves and Surfaces: Troms? 2004. Nashboro Press. ISBN 0-9728482-4-X. 386 p.
Tveito, Aslak & D?hlen, Morten (1997). Numerical methods and software tools in industrial mathematics. Birkh?user, Boston. ISBN 0-8176-3973-X.

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D?hlen, Morten; Sandve, Geir Kjetil Ferkingstad & Braa, Kristin (2023). KI-milliarden m? brukes p? en rettferdig gr?nn og digital omstilling. Khrono.no. ISSN 1894-8995.
M?rken, Knut Martin & D?hlen, Morten (2019). Er frafallet i h?yere utdanning et s? stort problem som noen vil ha det til? [Newspaper]. Khrono.
D?hlen, Morten (2018). Fra 60 grader nord til 30 grader s?r. [Internet]. https://titan.uio.no.
D?hlen, Morten (2018). Samarbeid mellom s?r og nord. [Internet]. https://titan.uio.no.
D?hlen, Morten; Glette, Kyrre Harald & Lystad, Karina (2012). Her printer Mikkel (16) ut en dommerfl?yte i 3D. [Internet]. nrk.no.
Myklebust, Mona; D?hlen, Morten & Glette, Kyrre Harald (2012). NRK Ekko: 3D-printing. [Radio]. NRK.
Lystad, Karina; Jahr, Martin; Christensen, Mikkel Killingmoe; D?hlen, Morten; Glette, Kyrre Harald & Hafting, Yngve [Show all 7 contributors for this article] (2012). Her printer Mikkel (16) ut en dommerfl?yte i 3D. [Internet]. NRK.no. Show summary
3D-printing har blitt kalt en ny industriell revolusjon. I fremtiden kan vi printe ut alt vi trenger fra en hjemmeprinter. 16 ?r gamle Mikkel Killingmoe Christensen har allerede begynt.
D?hlen, Morten (2011). The computerized society. Public Service Review: European Union. ISSN 1472-3395. 21, p. 498�C499.
D?hlen, Morten (2011). The (Future) Computerized Society.
D?hlen, Morten (2011). ICT in Medicine and Health at UiO.
D?hlen, Morten (2010). Ny n?ring med gr?nne datasentre. Teknisk Ukeblad. ISSN 0040-2354.
D?hlen, Morten (2010). Evolutionary Infrastructures for Computing and Data Handling.
D?hlen, Morten (2010). The Search for the perfect balance. Show summary
Informatics (or ICT) is the science on how data systems are constructed and used, and informatics is today the science in the realm of all sciences with the largest impact on the development of the society. With emphasis on collaboration with industrial partners and important units in public sector this presentation is about the long term research challenges within informatics. It is all about shaping the workforce of tomorrow and performing high quality basic research for sustainable development.
Horn, Geir; Hartvigsen, Gunnar; Lysne, Olav; Bratbergsengen, Kjell; Arntzen Bechina, Aurilla Aurelie & Fallmyr, Terje [Show all 8 contributors for this article] (2010). Informatikkforskning ��grunnleggende for moderne samfunnsutvikling. ComputerWorld Norge. ISSN 1501-6595. p. 34�C34.
D?hlen, Morten (2009). Nytt p? nettet - Wolfram Alfa. [Radio]. Verd ? vite, NRK.
Lie Ellefsen, Tone; Mirmotahari, Omid & D?hlen, Morten (2007). Mangler 7000 IT-nerder. [Internet]. e24! N?ringsliv. Show summary
Den fjerde IT-b?lgen skyller bredt over landet, og bransjen skriker etter arbeidskraft. Men ipodgenerasjonen er bare interessert i ? bruke, og ikke i ? lage IT-l?sninger.
Holm, Sverre; D?hlen, Morten & Christensen, Arnfinn (2007). Slakter NRKs DAB-vurdering. [Internet]. www.forskning.no.
D?hlen, Morten & Lysne, Olav (2003). Internett og trafikkork. [TV]. NRK.
Fimland, Morten & D?hlen, Morten (2000). Hierarchical Triangulation with Network Constraints.
D?hlen, Morten & Fimland, Morten (1999). Constructing Hierarchical Terrain Models by Edge Ordering over Triangulations. Show summary
Based on edge ordering strategies over triangulations, we introduce a hierarchical representation for triangle-based terrain surfaces. Edge-based data reduction strategies leading to hierarchical representations of triangle-based terrain surfaces opens for a more structured integration of polygonal data, e.g. river and road networks. In this paper we present various measures for selecting edges and we show a few examples where these measures are used for building hierarchical terrain models.
Arge, Erlend; D?hlen, Morten & Hjelle, ?yvind (1997). Mathematical software for terrain modelling.
D?hlen, Morten & Tveito, Aslak (1991). Matematikk kan brukes. Ingeni?r-nytt : ukeavis for teknologi og nyskapning. ISSN 0332-611X.
D?hlen, Morten; Lyche, Tom ; M?rken, Knut Martin & Seidel, Hans-Peter (2006). Multiresolution analysis based on quadratic Hermite interpolation Part 1: Piecewise polynomial Curves. Department of Informatics, University of Oslo. ISSN 82-7368-273-0.
D?hlen, Morten & Hjelle, ?yvind (2000). A hierarchical framework for triangle-based surface and polygonal networks. SINTEF.
D?hlen, Morten & Hjelle, ?yvind (1993). Compact representation of seismic sections. SINTEF.
Holm, P. G.; Tveito, Aslak & D?hlen, Morten (1992). Bruk av splines for kompakt og griduavhengig lagring av reservoardata.
Steinlein, O. A.; Hjelle, ?yvind & D?hlen, Morten (1992). Compact digital representation of seismic sections. SI.
D?hlen, Morten; Langtangen, Hans Petter & Tveito, Aslak (1991). Some research projects in industrial mathematics.

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Published Aug. 30, 2021 9:34 AM - Last modified Sep. 3, 2025 7:57 AM

Research groups

Scientific Computing and Machine Learning