Nils Damm Christophersen

Professor Emeritus - Department for Informatics
Image of Nils Damm Christophersen
Norwegian version of this page
Phone +47 22852406
Username
Visiting address Gaustadalléen 23B Ole-Johan Dahls hus 0373 Oslo
Postal address Postboks 1080 Blindern 0316 Oslo

Academic Interests

My background is in applied mathematics and statistics particularly within digital signal processing. In addition, I have a long term interest in innovation and entrepreneurship in the university sector. 

Higher education and employment history

Employment

  • 2006 – 2009      Board member at the University of Oslo
  • 2003 – 2004      Dean of studies, Faculty of Mathematics and Natural Sciences
  • 2000 – 2006     Group leader Digital signal and image analysis (DSB). 
  • 1998 – 1999      Head, Department of informatics
  • 1997 – 1998      Visiting scientist, Department of Statistics, Stanford University
  • 1991 –               Professor, Department of informatics, University of Oslo
  • 1988 – 1989      Visiting scientist, Institute of Hydrology, UK
  • 1986 – 1991      Adjunct professor Department of informatics, University of Oslo
  • 1978 – 1991      Research scientist, Center for industrial Research/SINTEF, Oslo
  • 1975 – 1977      Associate professor, Department of physics, University of Oslo
  • 1972 – 1975      Research scientist, Norwegian Defence Research Establishment

Education:

  • 1983 Dr. Philos.  (PhD) (environmental modeling of impacts of acid rain), Center for Industrial Research (SINTEF)/Department of informatics, University of Oslo
  • 1972  Cand. real. (M.Sc.) in cybernetics, Norwegian Defense Research Establishment /Department for Physics, University of Oslo

Honoraria

CV with list of publications

http://heim.ifi.uio.no/~nilsch/CV_Nov_2016.pdf

Tags: applied mathematics, statistics, innovation, entrepreneurship

Publications

  • For a complete list of publications, see CV
  • Dahl, Tobias Gulden; Pereira, SS; Christophersen, Nils Damm & Gesbert, David (2007). Intrinsic subspace convergence in TDD MIMO communication. IEEE Transactions on Signal Processing. ISSN 1053-587X. 55. doi: 10.1109/TSP.2007.896901.
  • Dahl, Tobias Gulden; Lingjærde, Ole Christian & Christophersen, Nils Damm (2005). Local-ICA: independent component analysis for sources with non-stationary amplitudes. In Bouzerdoum, A. & Beghdadi, A. (Ed.), Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 2005. IEEE conference proceedings. ISSN 0-7803-9243-4.
  • Dahl, Tobias Gulden; Christophersen, Nils Damm & Gesbert, David (2004). Blind MIMO Transmission based on the Algebraic Power Method. IEEE Transactions on Signal Processing. ISSN 1053-587X. 52(9), p. 2424–2431. doi: 10.1109/TSP.2004.832000.
  • Dahl, T; Christophersen, Nils Damm & Gesbert, David (2004). Blind MIMO eigenmode transmission based on the algebraic power method. IEEE Transactions on Signal Processing. ISSN 1053-587X. 52, p. 2424–2431.
  • Bølviken, Erik; Acklam, Peter John; Christophersen, Nils Damm & Størdal, J.M. (2001). Monte-Carlo filters for non-linear state estimation. Automatica. ISSN 0005-1098. 37(2), p. 177–183.
  • Lingjærde, Ole Christian & Christophersen, Nils Damm (2000). Shrinkage Structure of Partial Least Squares. Scandinavian Journal of Statistics. ISSN 0303-6898. 27(3), p. 459–473.
  • Kugiumtzis, Dimitris; Lingjærde, Ole Christian & Christophersen, Nils Damm (1998). Regularized Local Linear Prediction of Chaotic Time Series. Physica D : Non-linear phenomena. ISSN 0167-2789. 112(3-4), p. 344–360.
  • Sjøberg, Dag & Christophersen, Nils Damm (1996). Den menneskefiendtlige informasjonsteknologien ­ og andre myter, Schola.
  • Christophersen, Nils Damm; Neal, Colin; Hooper, Richard; Vogt, Rolf David & Andersen, Sjur (1990). Christophersen N, Neal C, Hooper RP, Vogt RD, Andersen S. Modelling streamwater chemistry as a mixture of soilwater end-members — A step towards second-generation acidification models. Journal of Hydrology. ISSN 0022-1694. 116(1), p. 307–320. doi: 10.1016/0022-1694%2890%2990130-P.
  • Christophersen, Nils Damm; Hauhs, Michael; Mulder, Jan; Seip, Hans Martin & Vogt, Rolf David (1990). Hydrogeochemical processes in the Birkenes catchment. In Mason, B.J. (Eds.), The surface water acidification programme. Cambridge University Press. ISSN 0-521-39533-X. p. 97–106.
  • Andersen, Sjur; Christophersen, Nils Damm; Mulder, Jan; Seip, Hans Martin & Vogt, Rolf David (1990). Aluminium solubility in the various soil horizons in an acidified catchment. In Mason, B.J. (Eds.), The surface water acidification programme. Cambridge University Press. ISSN 0-521-39533-X. p. 155–159.
  • Vogt, Rolf David; Andersen, Dag Olav; Andersen, Sjur; Christophersen, Nils Damm & Mulder, Jan (1990). Streamwater, soil-water chemistry, and water flow paths at Birkenes during a dry-wet hydrological cycle. In Mason, B.J. (Eds.), The surface water acidification programme. Cambridge University Press. ISSN 0-521-39533-X. p. 149–154.

View all works in Cristin

  • Leister, Wolfgang & Christophersen, Nils Damm (2014). INF5780 - Open source, open collaboration and innovation - Høst 2014.
  • Christophersen, Nils Damm & Leister, Wolfgang (2014). Governance of Open Source and Commons-Based Peer Production.
  • Leister, Wolfgang & Christophersen, Nils Damm (2013). INF5780 - Open source, open collaboration and innovation - Høst 2013.
  • Leister, Wolfgang & Christophersen, Nils Damm (2012). ITLED4240 - Åpen programvare, åpent samarbeid og innovasjon.
  • Leister, Wolfgang & Christophersen, Nils Damm (2012). INF5780 - Open source, open collaboration and innovation - Høst 2012.
  • Leister, Wolfgang & Christophersen, Nils Damm (2011). Åpen programvare og åpent samarbeid.
  • Leister, Wolfgang & Christophersen, Nils Damm (2011). INF5780 - Open source, open collaboration and innovation - Høst 2011.
  • Leister, Wolfgang; Christophersen, Nils Damm & Jayaraman, Karthik (2010). INF5780 - Open source, open collaboration and innovation - Høst 2010.
  • Christophersen, Nils Damm (2010). Wikipedia som dugnadsbasert allmenning.
  • Leister, Wolfgang; Christophersen, Nils Damm & Tsiavos, Prodromos (2009). INF5780 - Open source, open collaboration and innovation - Høst 2009.
  • Christophersen, Nils Damm (2009). Wikipedia and science – two knowledge commons.
  • Christophersen, Nils Damm (2009). Åpen kildekode, åpent samarbeid og innovasjon.
  • Christophersen, Nils Damm (2008). Lessons learned from the open source HISP health information program.
  • Christophersen, Nils Damm (2008). Fri programvare og andre dugnadsprosjekter i I- og U-land.
  • Christophersen, Nils Damm (2008). Open source, open collaboration, and disruptive innovation.
  • Christophersen, Nils Damm (2007). Wikipedia og andre nettsamfunn som inspirasjon for fremtidig formidling.
  • Dahl, Tobias Gulden; Lingjærde, Ole Christian; Christophersen, Nils Damm & Ekman, Torbjørn (2005). Local-ICA: independent component analysis for sources with non-stationary amplitudes.
  • Christophersen, Nils Damm & Trulsen, Jan (2002). Få realfag inn i ex.phil. Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116.
  • Christophersen, Nils Damm (2002). Digital Dignalbehandling og Bildeanalyse(DSB) ved UiO. NORSIGnalet : organ for NORSIG, Norsk forening for signalbehandling. ISSN 0804-5623. p. 3–4.
  • Gesbert, David & Christophersen, Nils Damm (2002). Space: the final (wireless) fontier. NORSIGnalet : organ for NORSIG, Norsk forening for signalbehandling. ISSN 0804-5623. p. 4–8.
  • Dahl, Tobias; Christophersen, Nils Damm & Gesbert, David (2002). Identification of parallel MIMO channels in wireless communication using power iterations.
  • Dahl, Tobias; Christophersen, Nils Damm & Gesbert, David (2002). BIMA Blind MIMO Algorithm.
  • Gesbert, David; Ekman, Torbjørn & Christophersen, Nils Damm (2002). Capacity limits of dense palm-sized MIMO arrays.
  • Leister, Wolfgang; Holm, Sverre & Christophersen, Nils Damm (2001). Multimedia Koding og Transmisjon - INF MKT Høst 2001.
  • Holm, Sverre & Christophersen, Nils Damm (2001). Hvordan virker mobiltelefonen og hva har vi i vente?
  • Holm, Sverre & Christophersen, Nils Damm (2001). Hvordan virker mobiltelefonen og hva har vi i vente?
  • Norum, Kaare Reidar; Christophersen, Nils Damm; Elverhøi, Anders; Grue, John & Uggerud, Einar (2000). Hånd i hånd med næringslivet. Dagens næringsliv. ISSN 0803-9372.
  • Leister, Wolfgang; Christophersen, Nils Damm; Groven, Arne-Kristian; Tsiavos, Prodromos; Heggestøyl, Simen & Rødskog, Daniel (2015). INF5780 Compendium Autumn 2015: Open Source, Open Collaboration and Innovation. Norsk Regnesentral.
  • Leister, Wolfgang; Christophersen, Nils Damm; Tsiavos, Prodromos; Groven, Arne-Kristian; Heggestøyl, Simen & Rødskog, Daniel [Show all 10 contributors for this article] (2014). INF5780 Compendium Autumn 2014: Open Source, Open Collaboration and Innovation. Norsk Regnesentral.
  • Leister, Wolfgang; Christophersen, Nils Damm; Tsiavos, Prodromos; Groven, Arne-Kristian; Heggestøyl, Simen & Rødskog, Daniel [Show all 10 contributors for this article] (2013). INF5780 Compendium Autumn 2013: Open Source, Open Collaboration and Innovation. Norsk Regnesentral.
  • Leister, Wolfgang & Christophersen, Nils Damm (2012). INF5780 Compendium Autumn 2012: Open Source, Open Collaboration and Innovation. Norsk Regnesentral.
  • Leister, Wolfgang & Christophersen, Nils Damm (2012). ITLED 4240 Compendium Spring 2012: Open Source, Open Collaboration and Innovation. Norsk Regnesentral.
  • Leister, Wolfgang & Christophersen, Nils Damm (2011). INF5780 Compendium Autumn 2011: Open source, Open collaboration and Innovation. Norsk Regnesentral.
  • Bølviken, Erik; Christophersen, Nils Damm & Storvik, Geir Olve (1998). Linear dynamical models, Kalman filtering and statistics. Lecture notes to IN-ST 259.

View all works in Cristin

Published Nov. 4, 2010 1:49 PM - Last modified Sep. 21, 2021 10:05 AM