Nicolaas Ervik Groeneboom

Principal Engineer - Neural Systems
Image of Nicolaas Ervik Groeneboom
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Phone +47 22854281
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Visiting address Sognsvannsveien 9 Domus Medica 0372 Oslo
Postal address Postboks 1105 Blindern 0317 Oslo

Academic interests

Principal developer of Nutil (Neuroimaging Utilities), a tool for performing statistical analyses of rodent brain data.

Research interest keywords: Data analysis and statistics, real-time visualization, (OpenGL, Unity), 3D engine design, C++ and C#, procedural programming, computational cosmology, galaxy simulations, gravitational lensing, N-body simulations, halo finders, model testing and data fitting, Bayesian statistics, CMB and LSS anisotropies, modified Newtonian gravity, open source projects, ray tracing, compiler techniques, compiler optimisations, parsers and assemblers, low-level assembly generation, HPC and GPU programming (CUDA, GLSL).

Background

Various post-doc positions (2010,2012,2016)

Ph.D in astrophysics at the University of Oslo. Funded by the Research Council of Norway, 3 year grant. Completed in June 2010. Supervised by Hans Kristian Eriksen and Frode Hansen.

M.Sc. in theoretical astrophysics at the University of Oslo. Completed August 2007, supervised
by prof. Øystein Elgarøy.

B.Sc. Mathematics, University of Oslo, 2003-2006,

Full-time hobby programmer since 1986. 4 years of professional experience from the IT industry.

Creator and principal manager/developer of the open source project "TRSE", see https://www.turborascal.com (with more than 1000 users).

Tags: Nesys, Programmering, C++, Utvikler, Astrofysikk, Kosmologi

Publications

  • Groeneboom, Nicolaas Ervik; Yates, Sharon Christine; Puchades, Maja & Bjaalie, Jan G. (2020). Nutil: A Pre- and Post-processing Toolbox for Histological Rodent Brain Section Images.. Frontiers in Neuroinformatics.  ISSN 1662-5196. . doi: 10.3389/fninf.2020.00037
  • Yates, Sharon Christine; Groeneboom, Nicolaas Ervik; Coello, Christopher; Lichtenthaler, Stefan F.; Kuhn, Peer-Hendrik; Demuth, Hans-Ulrich; Hartlage-Rübsamen, Maike; Rossner, Steffen; Leergaard, Trygve B.; Kreshuk, Anna; Puchades, Maja & Bjaalie, Jan G. (2019). QUINT: Workflow for Quantification and Spatial Analysis of Features in Histological Images From Rodent Brain. Frontiers in Neuroinformatics.  ISSN 1662-5196.  13 . doi: 10.3389/fninf.2019.00075 Full text in Research Archive. Show summary
  • Ade, Peter A.R.; Aghanim, N; Armitage-Caplan, C; Arnaud, M; Ashdown, M; Atrio-Barandela, F; Aumont, J; Aussel, H; Baccigalupi, C; Banday, AJ; Barreiro, RB; Barrena, R; Bartelmann, M; Bartlett, JG; Battaner, E; Benabed, K; Benoit, A; Benoit-Levy, A; Bernard, JP; Bersanelli, M; Bielewicz, P; Bikmaev, I; Bobin, J; Bock, JJ; Böhringer, H; Bonaldi, A; Bond, JR; Borrill, J; Bouchet, FR; Bridges, M; Bucher, M; Burenin, R; Burigana, C; Butler, RC; Cardoso, JF; Carvalho, P; Catalano, A; Challinor, A; Chamballu, A; Chary, RR; Chen, X; Chiang, HC; Chiang, LY; Chon, G; Christensen, PR; Churazov, E; Church, S; Clements, DL; Colombi, S; Colombo, LPL; Comis, B; Couchot, F; Coulais, A; Crill, BP; Curto, A; Cuttaia, F; Da Silva, A; Dahle, Håkon; Danese, L; Davies, RD; Davis, RJ; De Bernardis, P; De Rosa, A; De Zotti, G; Delabrouille, J; Delouis, JM; Democles, J; Desert, FX; Dickinson, C; Diego, JM; Dolag, K; Dole, H; Donzelli, S; Dore, O; Douspis, M; Dupac, X; Efstathiou, G; Enßlin, TA; Eriksen, Hans Kristian Kamfjord; Feroz, F; Ferragamo, A; Finelli, F; Flores-Cacho, I; Forni, O; Frailis, M; Franceschi, E; Fromenteau, S; Galeotta, S; Ganga, K; Genova-Santos, RT; Giard, M; Giardino, G; Gilfanov, M; Giraud-Heraud, Y; Gonzalez-Nuevo, J; Gorski, KM; Grainge, KJB; Gratton, S; Gregorio, A; Groeneboom, Nicolaas Ervik; Gruppuso, A; Hansen, Frode Kristian; Hanson, D; Harrison, D; Hempel, A; Henrot-Versille, S; Hernandez-Monteagudo, C; Herranz, D; Hildebrandt, SR; Hivon, E; Hobson, M; Holmes, WA; Hornstrup, A; Hovest, W; Huffenberger, KM; Hurier, G; Hurley-Walker, N; Jaffe, AH; Jaffe, TR; Jones, WC; Juvela, M; Keihänen, E; Keskitalo, R; Khamitov, I; Kisner, TS; Kneissl, R; Knoche, J; Knox, L; Kunz, M; Kurki-Suonio, H; Lagache, G; Lähteenmäki, A; Lamarre, JM; Lasenby, A; Laureijs, RJ; Lawrence, CR; Leahy, JP; Leonardi, R; Leon-Tavares, J; Lesgourgues, J; Li, C; Liddle, A; Liguori, M; Lilje, Per Barth; Linden-Vørnle, M; Lopez-Caniego, M; Lubin, PM; Macias-Perez, JF; Mactavish, CJ; Maffei, B; Maino, D; Mandolesi, N; Maris, M.; Marshall, DJ; Martin, PG; Martinez-Gonzalez, E; Masi, S; Massardi, M; Matarrese, S; Matthai, F; Mazzotta, P; Mei, S; Meinhold, PR; Melchiorri, A; Melin, JB; Mendes, L; Mennella, A; Migliaccio, M; Mikkelsen, Kristin; Mitra, S; Miville-Deschenes, MA; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Munshi, D; Murphy, JA; Naselsky, P; Nastasi, A; Nati, F; Natoli, P; Nesvadba, NPH; Netterfield, CB; Nørgaard-Nielsen, HU; Noviello, F; Novikov, D; Novikov, I; O'Dwyer, IJ; Olamaie, M; Osborne, S; Oxborrow, CA; Paci, F; Pagano, L; Pajot, F; Paoletti, D; Pasian, F; Patanchon, G; Pearson, TJ; Perdereau, O; Perotto, L; Perrott, YC; Perrotta, F; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Pointecouteau, E; Polenta, G; Ponthieu, N; Popa, L; Poutanen, T; Pratt, GW; Prezeau, G; Prunet, S; Puget, JL; Rachen, JP; Reach, WT; Rebolo, R; Reinecke, M; Remazeilles, M; Renault, C; Ricciardi, S; Riller, T; Ristorcelli, I; Rocha, G; Rosset, C; Roudier, G; Rowan-Robinson, M; Rubino-Martin, JA; Rumsey, C; Rusholme, B; Sandri, M; Santos, D; Saunders, RDE; Savini, G; Schammel, MP; Scott, D; Seiffert, MD; Shellard, EPS; Shimwell, TW; Spencer, LD; Starck, JL; Stolyarov, V; Stompor, R; Streblyanska, A; Sudiwala, R; Sunyaev, R; Sureau, F; Sutton, D; Suur-Uski, AS; Sygnet, JF; Tauber, JA; Tavagnacco, D; Terenzi, L; Toffolatti, L; Tomasi, M; Tramonte, D; Tristram, M; Tucci, M; Tuovinen, J; Turler, M; Umana, G; Valenziano, L; Väliviita, Jussi-Pekka; Van Tent, B; Vibert, L; Vielva, P; Villa, F; Vittorio, N; Wade, LA; Wandelt, BD; White, M; White, SDM; Yvon, D; Zacchei, A & Zonca, A (2015). Planck 2013 results. XXXII. The updated Planck catalogue of Sunyaev-Zeldovich sources. Astronomy and Astrophysics (A & A).  ISSN 0004-6361.  581 . doi: 10.1051/0004-6361/201525787 Full text in Research Archive.
  • Ade, P. A. R.; Aghanim, N; Armitage-Caplan, C; Arnaud, M; Ashdown, M; Atrio-Barandela, F; Aumont, J; Aussel, H; Baccigalupi, C; Banday, AJ; Barreiro, RB; Barrena, R; Bartelmann, M; Bartlett, JG; Battaner, E; Benabed, K; Benoit, A; Benoit-Levy, A; Bernard, JP; Bersanelli, M; Bielewicz, P; Bikmaev, I; Bobin, J; Bock, JJ; Böhringer, H; Bonaldi, A; Bond, JR; Borrill, J; Bouchet, FR; Bridges, M; Bucher, M; Burenin, R; Burigana, C; Butler, RC; Cardoso, JF; Carvalho, P; Catalano, A; Challinor, A; Chamballu, A; Chary, RR; Chen, X; Chiang, HC; Chiang, LY; Chon, G; Christensen, PR; Churazov, E; Church, S; Clements, DL; Colombi, S; Colombo, LPL; Comis, B; Couchot, F; Coulais, A; Crill, BP; Curto, A; Cuttaia, F; Da Silva, A; Dahle, Håkon; Danese, L; Davies, RD; Davis, RJ; De Bernardis, P; De Rosa, A; De Zotti, G; Delabrouille, J; Delouis, JM; Democles, J; Desert, FX; Dickinson, C; Diego, JM; Dolag, K; Dole, H; Donzelli, S; Dore, O; Douspis, M; Dupac, X; Efstathiou, G; Eisenhardt, PRM; Enßlin, TA; Eriksen, Hans Kristian Kamfjord; Feroz, F; Finelli, F; Flores-Cacho, I; Forni, O; Frailis, M; Franceschi, E; Fromenteau, S; Galeotta, S; Ganga, K; Genova-Santos, RT; Giard, M; Giardino, G; Gilfanov, M; Giraud-Heraud, Y; Gonzalez-Nuevo, J; Gorski, KM; Grainge, KJB; Gratton, S; Gregorio, A; Groeneboom, Nicolaas Ervik; Gruppuso, A; Hansen, Frode Kristian; Hanson, D; Harrison, D; Hempel, A; Henrot-Versille, S; Hernandez-Monteagudo, C; Herranz, D; Hildebrandt, SR; Hivon, E; Hobson, M; Holmes, WA; Hornstrup, A; Hovest, W; Huffenberger, KM; Hurier, G; Hurley-Walker, N; Jaffe, AH; Jaffe, TR; Jones, WC; Juvela, M; Keihänen, E; Keskitalo, R; Khamitov, I; Kisner, TS; Kneissl, R; Knoche, J; Knox, L; Kunz, M; Kurki-Suonio, H; Lagache, G; Lähteenmäki, A; Lamarre, JM; Lasenby, A; Laureijs, RJ; Lawrence, CR; Leahy, JP; Leonardi, R; Leon-Tavares, J; Lesgourgues, J; Li, C; Liddle, A; Liguori, M; Lilje, Per Barth; Linden-Vørnle, M; Lopez-Caniego, M; Lubin, PM; Macias-Perez, JF; Mactavish, CJ; Maffei, B; Maino, D; Mandolesi, N; Maris, M.; Marshall, DJ; Martin, PG; Martinez-Gonzalez, E; Masi, S; Massardi, M; Matarrese, S; Matthai, F; Mazzotta, P; Mei, S; Meinhold, PR; Melchiorri, A; Melin, JB; Mendes, L; Mennella, A; Migliaccio, M; Mikkelsen, Kristin; Mitra, S; Miville-Deschenes, MA; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Munshi, D; Murphy, JA; Naselsky, P; Nati, F; Natoli, P; Nesvadba, NPH; Netterfield, CB; Nørgaard-Nielsen, HU; Noviello, F; Novikov, D; Novikov, I; O'dwyer, IJ; Olamaie, M; Osborne, S; Oxborrow, CA; Paci, F; Pagano, L; Pajot, F; Paoletti, D; Pasian, F; Patanchon, G; Pearson, TJ; Perdereau, O; Perotto, L; Perrott, YC; Perrotta, F; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Pointecouteau, E; Polenta, G; Ponthieu, N; Popa, L; Poutanen, T; Pratt, GW; Prezeau, G; Prunet, S; Puget, JL; Rachen, JP; Reach, WT; Rebolo, R; Reinecke, M; Remazeilles, M; Renault, C; Ricciardi, S; Riller, T; Ristorcelli, I; Rocha, G; Rosset, C; Roudier, G; Rowan-Robinson, M; Rubino-Martin, JA; Rumsey, C; Rusholme, B; Sandri, M; Santos, D; Saunders, RDE; Savini, G; Schammel, MP; Scott, D; Seiffert, MD; Shellard, EPS; Shimwell, TW; Spencer, LD; Stanford, SA; Starck, JL; Stolyarov, V; Stompor, R; Sudiwala, R; Sunyaev, R; Sureau, F; Sutton, D; Suur-Uski, AS; Sygnet, JF; Tauber, JA; Tavagnacco, D; Terenzi, L; Toffolatti, L; Tomasi, M; Tristram, M; Tucci, M; Tuovinen, J; Turler, M; Umana, G; Valenziano, L; Väliviita, Jussi-Pekka; Van Tent, B; Vibert, L; Vielva, P; Villa, F; Vittorio, N; Wade, LA; Wandelt, BD; White, M; White, SDM; Yvon, D; Zacchei, A & Zonca, A (2014). Planck 2013 results. XXIX. The Planck catalogue of Sunyaev-Zeldovich sources. Astronomy and Astrophysics (A & A).  ISSN 0004-6361.  571 . doi: 10.1051/0004-6361/201321523 Full text in Research Archive.
  • Groeneboom, Nicolaas Ervik & Dahle, Håkon (2014). INTRODUCING GAMER: A FAST AND ACCURATE METHOD FOR RAY-TRACING GALAXIES USING PROCEDURAL NOISE. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  783(2) . doi: 10.1088/0004-637X/783/2/138 Full text in Research Archive.
  • Dahle, Håkon; Gladders, M. D.; Sharon, K.; Bayliss, M. B.; Wuyts, E; Abramson, L. E.; Koester, B. P.; Groeneboom, Nicolaas Ervik; Brinckmann, T. E.; Kristensen, M. T.; Lindholmer, M. O.; Nielsen, A; Krogager, J.-K. & Fynbo, J.P.U. (2013). SDSS J2222+2745: A GRAVITATIONALLY LENSED SEXTUPLE QUASAR WITH A MAXIMUM IMAGE SEPARATION OF 15."1 DISCOVERED IN THE SLOAN GIANT ARCS SURVEY. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  773(2) . doi: 10.1088/0004-637X/773/2/146 Full text in Research Archive.
  • Groeneboom, Nicolaas Ervik; Ackerman, Lotty; Wehus, Ingunn Kathrine & Eriksen, Hans Kristian Kamfjord (2010). BAYESIAN ANALYSIS OF AN ANISOTROPIC UNIVERSE MODEL: SYSTEMATICS AND POLARIZATION. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  722(1), s 452- 459 . doi: 10.1088/0004-637X/722/1/452
  • Hou, Zhen; Banday, Anthony J.; Górski, Krzysztof M.; Groeneboom, Nicolaas Ervik & Eriksen, Hans Kristian Kamfjord (2010). Frequentist comparison of CMB local extrema statistics in the five-year WMAP data with two anisotropic cosmological models. Monthly notices of the Royal Astronomical Society.  ISSN 0035-8711.  401(4), s 2379- 2387 . doi: 10.1111/j.1365-2966.2009.15866.x
  • Rudjord, Øystein; Groeneboom, Nicolaas Ervik; Hansen, Frode Kristian & Cabella, P. (2010). NON-GAUSSIANITIES IN THE LOCAL CURVATURE OF THE FIVE-YEAR WMAP DATA. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  718(1), s 66- 71 . doi: 10.1088/0004-637X/718/1/66
  • Groeneboom, Nicolaas Ervik & Eriksen, Hans Kristian Kamfjord (2009). BAYESIAN ANALYSIS OF SPARSE ANISOTROPIC UNIVERSE MODELS AND APPLICATION TO THE FIVE-YEAR WMAP DATA. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  690(2), s 1807- 1819 . doi: 10.1088/0004-637X/690/2/1807
  • Groeneboom, Nicolaas Ervik; Eriksen, Hans Kristian Kamfjord; Górski, Krzysztof M.; Huey, G.; Jewell, J. B. & Wandelt, B (2009). BAYESIAN ANALYSIS OF WHITE NOISE LEVELS IN THE FIVE-YEAR WMAP DATA. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  702(1), s L87- L90 . doi: 10.1088/0004-637X/702/1/L87
  • Rudjord, Øystein; Groeneboom, Nicolaas Ervik; Eriksen, Hans Kristian Kamfjord; Huey, G.; Górski, Krzysztof M. & Jewell, J. B. (2009). COSMIC MICROWAVE BACKGROUND LIKELIHOOD APPROXIMATION BY A GAUSSIANIZED BLACKWELL-RAO ESTIMATOR. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  692(2), s 1669- 1677 . doi: 10.1088/0004-637X/692/2/1669
  • Wehus, Ingunn Kathrine; Ackerman, Lotty; Eriksen, Hans Kristian Kamfjord & Groeneboom, Nicolaas Ervik (2009). THE EFFECT OF ASYMMETRIC BEAMS IN THE WILKINSON MICROWAVE ANISOTROPY PROBE EXPERIMENT. The Astrophysical Journal (ApJ).  ISSN 0004-637X.  707(1), s 343- 353 . doi: 10.1088/0004-637X/707/1/343
  • Groeneboom, Nicolaas Ervik & Elgarøy, Øystein (2008). Detection of trans-Planckian effects in the cosmic microwave background. Physical Review D. Particles and fields.  ISSN 0556-2821.  77 . doi: 10.1103/PhysRevD.77.043522
  • Mota, David Fonseca; Kristiansen, Jostein Riiser; Koivisto, T & Groeneboom, Nicolaas Ervik (2007). Constraining dark energy anisotropic stress. Monthly notices of the Royal Astronomical Society.  ISSN 0035-8711.  382, s 793- 800 . doi: 10.1111/j.1365-2966.2007.12413.x

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  • Schlegel, Ulrike; Blixhavn, Camilla Hagen; Andersson, Krister Andreas; Yates, Sharon Christine; Øvsthus, Martin; Bjerke, Ingvild Elise; Kleven, Heidi; Groeneboom, Nicolaas Ervik; Puchades, Maja; Bjaalie, Jan G. & Leergaard, Trygve B. (2019). Integrating and analysing heterogeneous rodent neuroscience data using three-dimensional brain reference atlases. Show summary
  • Groeneboom, Nicolaas Ervik (2010). Searching for anomalies in the Cosmic Microwave Background. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 962.

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Published June 2, 2021 12:33 PM - Last modified June 2, 2021 1:04 PM