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Publication profile

Publication profile

Kristoffer Herland Hellton

Kristoffer Herland, Hellton
Name: Kristoffer Herland Hellton
Title: Seniorforsker / Senior Research Scientist
Phone: (+47) 22852568
Email: Kristoffer [dot] Herland [dot] Hellton [at] nr [dot] no
Scientific areas: Statistical analysis, High-dimensional data, Dimension reduction, Model selection, Biostatistics
Homepage: https://www.nr.no/~hellton/
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 Show publications

 

    Academic journal articles

    2019

    Melvær, Giil Lasse; Solvang, Stein-Erik Hafstad; Giil, Malin Melvaer; Hellton, Kristoffer Herland; Skogseth, Ragnhild Eide; Vik-Mo, Audun Osland; Hortobágyi, Tibor; Aarsland, Dag; Nordrehaug, Jan Erik. Serum Potassium Is Associated with Cognitive Decline in Patients with Lewy Body Dementia. Journal of Alzheimer's Disease (ISSN 1387-2877). 68(1) pp 239-253. doi: 10.3233/JAD-181131. 2019.

    2018

    Hellton, Kristoffer Herland; Hjort, Nils Lid. Fridge: Focused fine‐tuning of ridge regression for personalized predictions. Statistics in Medicine (ISSN 0277-6715). 37(8) pp 1290-1303. doi: 10.1002/sim.7576. 2018.

    Melvær, Giil Lasse; Aarsland, Dag; Hellton, Kristoffer Herland; Lund, Anders; Heidecke, Harald; Schulze-Forster, Kai; Riemekasten, Gabriela; Vik-Mo, Audun Osland; Kristoffersen, Einar Klæboe; Vedeler, Christian A.; Nordrehaug, Jan Erik. Antibodies to multiple receptors are associated with neuropsychiatric symptoms and mortality in Alzheimer's disease: A longitudinal study. Journal of Alzheimer's Disease (ISSN 1387-2877). 64(3) pp 761-774. doi: 10.3233/JAD-170882. 2018.

    Sørensen, Øystein; Hellton, Kristoffer Herland; Frigessi Di Rattalma, Arnoldo; Thoresen, Magne. Covariate Selection in High-Dimensional Generalized Linear Models With Measurement Error. Journal of Computational And Graphical Statistics (ISSN 1061-8600). 27(4) pp 739-749. doi: 10.1080/10618600.2018.1425626. 2018.

    Thorarinsdottir, Thordis Linda; Hellton, Kristoffer Herland; Steinbakk, Gunnhildur Högnadóttir; Schlichting, Lena; Engeland, Kolbjørn. Bayesian regional flood frequency analysis for large catchments. Water Resources Research (ISSN 0043-1397). 54(9) pp 6929-6947. doi: 10.1029/2017WR022460. 2018. Full-text 

    2017

    Hellton, Kristoffer Herland; Thoresen, Magne. When and Why are Principal Component Scores a Good Tool for Visualizing High-dimensional Data? Scandinavian Journal of Statistics (ISSN 0303-6898). 44 pp 581-597. doi: 10.1111/sjos.12264. 2017. Institutional archive 

    2016

    Hellton, Kristoffer Herland. When are principal component scores a good tool for visualizing high-dimensional data? Oberwolfach Reports (ISSN 1660-8933). (12) pp 20-22. doi: 10.4171/OWR/2016/12. 2016. Institutional archive 

    Hellton, Kristoffer Herland; Thoresen, Magne. Integrative clustering of high-dimensional data with joint and individual clusters. Biostatistics (ISSN 1465-4644). 17(3) pp 537-548. doi: 10.1093/biostatistics/kxw005. 2016. Institutional archive 

    2014

    Hellton, Kristoffer Herland; Thoresen, Magne. The Impact of Measurement Error on Principal Component Analysis. Scandinavian Journal of Statistics (ISSN 0303-6898). 41(4) pp 1051-1063. doi: 10.1111/sjos.12083. 2014. Institutional archive 

    Academic chapters

    2017

    Hellton, Kristoffer Herland. A focused mean squared error approach for selecting tuning parameters in penalized regression. In: 2017 JSM proceedings : papers presented at the Joint Statistical Meetings. American Statistical Association. (ISBN 9780983937579). pp 1553-1568. 2017.

    2015

    Hellton, Kristoffer Herland. Consistency of principal component scores in visualizations of high-dimensional data. In: Proceedings of the 60th World Statistics Congress of the International Statistical Institute, ISI2015. The International Statistical Institute. (ISBN 978-90-73592-35-3). pp 3185-3190. 2015. Full-text 

    Academic lectures

    2018

    Hellton, Kristoffer Herland. Fridge: Focused fine-tuning of ridge regression for personalized predictions. Konferanse, 23rd International Conference on Computational Statistics (CompStat2018); Iasi, 28.08.2018 - 31.08.2018.

    Hellton, Kristoffer Herland. Combination of information across diverse sources: An overview. Workshop, FocuStat Research Kitchen on Combination of Data sources; Oslo, 12.11.2018 - 14.11.2018.

    Hellton, Kristoffer Herland. Fridge: Focused fine-tuning of ridge regression for personalized predictions. Konferanse, 11th International Conference on Computational and Methodological Statistics; Pisa, 13.12.2018 - 16.12.2018.

    Hellton, Kristoffer Herland. High-dimensional asymptotics for principal component regression. Konferanse, FocuStat Conference 2018, 22.05.2018 - 25.05.2018.

    Hellton, Kristoffer Herland. Prediksjon av viral suksess: hvordan modellere spredning av et produkt mellom kunder? Konferanse, Make Data Smart Again 2018; Oslo, 05.06.2018.

    Hellton, Kristoffer Herland; Thorarinsdottir, Thordis Linda. Bayesian hierarchical modeling of extreme flood events. Workshop, 9th Smögen Workshop, 13.08.2018 - 16.08.2018.

    Hellton, Kristoffer Herland. Focused fine-tuning of ridge regression with data integration. Workshop, FocuStat Research Kitchen on Combination of Data sources; Oslo, 12.11.2018 - 14.11.2018.

    Thorarinsdottir, Thordis Linda; Hellton, Kristoffer Herland; Steinbakk, Gunnhildur Högnadóttir; Schlichting, Lena; Engeland, Kolbjørn. Statistical estimation of extreme floods. Konferanse, Extremes 2018; Hannover, 18.03.2018.

    Thorarinsdottir, Thordis Linda; Lenkoski, Alex; Hellton, Kristoffer Herland; Steinbakk, Gunnhildur Högnadóttir; Dyrrdal, Anita Verpe; Stordal, Frode; Schlichting, Lena; Engeland, Kolbjørn. On developing general and efficient inference algorithms for complicated hierarchical models. Konferanse, 13th German Probability and Statistics Days; Freiburg, 28.02.2018.

    2017

    Hellton, Kristoffer Herland. P-values: what is the problem? Seminar, PhD day, 03.02.2017.

    Hellton, Kristoffer Herland. Significance for a modern world. Seminar, Big Insight-lunjsseminar, 06.12.2017.

    Hellton, Kristoffer Herland; Hjort, Nils Lid. Fridge: focused fine-tuning of ridge regression for personalized prediction. Konferanse, Norsk statistikermøte; Fredrikstad, 12.06.2017.

    Hellton, Kristoffer Herland. Focused Fine-tuning of Ridge Regression for Personalized Prediction. Konferanse, Joint Statistical Meeting; Baltimore, 30.07.2017 - 05.08.2017.

    2016

    Hellton, Kristoffer Herland. Focused fine-tuning of ridge regression. Workshop, FICology; Oslo, 09.05.2016 - 11.05.2016.

    Hellton, Kristoffer Herland. Fridge: a focused approach to fine-tuning ridge regression. Workshop, PhD/Postdoc Workshop, 06.09.2016 - 07.09.2016. Review 

    Hellton, Kristoffer Herland; Zucknick, Manuela. Drug synergy prediction for personalized therapy. Seminar, Big Insight Day 2016; Fornebu, Telenor, 15.11.2016.

    Hellton, Kristoffer Herland. When are principal component scores a good tool for visualizing high-dimensional data? Workshop, New Developments in Functional and Highly Multivariate Statistical Methodology; Oberwohlfach, 21.02.2016 - 27.02.2016.

    2015

    Hellton, Kristoffer Herland. Consistency of principal component scores in visualizations of high-dimensional data. Konferanse, 60th ISI World Statistics Congress; Rio de Janeiro, 24.07.2015 - 27.07.2015.

    Hellton, Kristoffer Herland. PCA and the asymptotic distribution of high-dimensional sample eigenvectors. Workshop, Inference with Confidence; Oslo, 09.05.2015 - 11.05.2015. Data 

    2014

    Hellton, Kristoffer Herland. Integrative Clustering of High-dimensional Data with Joint and Individual Clusters. Konferanse, Statistical Methods for Omics Data Integration and Analysis (SMODIA); Heraklion, 20.11.2014 - 22.11.2014.

    2013

    Hellton, Kristoffer Herland. Why PC scores are a good way to explore certain high-dimensional data. Konferanse, Norwegian Statistical Society conference, 12.06.2013 - 15.06.2013.

    Hellton, Kristoffer Herland. Issues regarding principal component analysis in the high-dimensional setting. Seminar, Statistics seminar; Zürich, 23.09.2013.

    Hellton, Kristoffer Herland. Consistency in high-dimensional principal component analysis. Seminar, Statistics seminar, 26.02.2013. Abstract 

    Hellton, Kristoffer Herland. Why principal component scores are a good exploratory tool for high-dimensional data. Konferanse, Joint Statistical Meeting (JSM); Montreal, 03.08.2013 - 06.08.2013. Data 

    2012

    Hellton, Kristoffer Herland. Projecting errors: How to understand measurement error in principal component analysis. Workshop, PhD/Postdoc Workshop, 26.04.2012 - 27.04.2012.

    Hellton, Kristoffer Herland. The impact of measurement error on principal component analysis. Konferanse, 8th World congress in Probability and Statistics; Istanbul, 09.07.2012 - 14.07.2012. Data 

    Hellton, Kristoffer Herland. The impact of measurement error on principal component analysis. Konferanse, 33th annual conference of International Society for Clinical Biostatistics, 01.08.2012 - 05.08.2012.

    Scientific lectures

    2017

    Hellton, Kristoffer Herland. Personalized predictions through focused fine-tuning of ridge regression. Seminar, Sylvia Richardson H.C. workshop day; University of Oslo, Dept. of Biostatistics, 30.08.2017.

    Løland, Anders; Günther, Clara-Cecilie; Hellton, Kristoffer Herland. Valgprognoser: hvorfor de er vanskelige og kanskje nyttige? Årsmøte, Temakveld; Oslo, 13.11.2017.

    Løland, Anders; Hellton, Kristoffer Herland. Statistisk metode på 360 minutter – fra det enkle til det avanserte. Seminar, Kurs; Oslo, 22.09.2017.

    Posters at scientific conferences

    2016

    Hellton, Kristoffer Herland. Integrative clustering of high-dimensional data with joint and individual clusters. 26th Nordic conference of Mathematical Statistics (NordStat); København, 27.06.2016 - 30.06.2016.

    2014

    Hellton, Kristoffer Herland. Asymptotic distribution of principal component scores for pervasive, high-dimensional eigenvectors. Geilo Winter School 2014: Big Data & Statistics; Geilo, 22.01.2014.

    2013

    Hellton, Kristoffer Herland. Asymptotic distribution of principal component scores for pervasive, high-dimensional eigenvectors. 34th annual meeting of International Society for Clinical Biostatistics; München, 16.08.2013 - 18.08.2013.

    Doctoral dissertations

    2015

    Hellton, Kristoffer Herland. On high-dimensional principal component analysis in genomics: consistency and robustness. : Institute Of Basic Medical Sciences, Faculty of Medicine, University of Oslo . pp 108. 2015.

    Reports

    2018

    Thorarinsdottir, Thordis Linda; Engeland, Kolbjørn; Lawrence, Deborah; Pedersen, Øyvind; Tveito, Ole Einar; Hellton, Kristoffer Herland; Dyrrdal, Anita Verpe; Eide, Vidar; Førland, Eirik; Holmqvist, Erik; Kobierska, Florian; Jørgensen, Sigrid; Midttømme, Grethe Holm; Moore, Richard; Nordtun, Kristian Strand; Orthe, Nils Kristian; Randen, Frode; Reitan, Trond; Ruther, Nils; Schlichting, Lena; Skaugen, Thomas; Steinbakk, Gunnhildur Högnadóttir; Voksø, Astrid; Væringstad, Thomas; Wang, Thea; Wilson, Donna; Ødemark, Karianne. Nytt rammeverk for flomestimering i Norge: Sluttrapport fra forskningsprosjektet FlomQ. Energi Norge, . (ISBN 978-82-436-1048-4) pp 71. 2018.

    2010

    Hellton, Kristoffer Herland; Lindvall, Hilda; Mutimbu, Lawrence; Nieminen, P; Proscia, Michele; Micheletti, Alessandra. Integrative Analysis of Omics Data. Dipartimento di Matematica, Universita degli Studi di Milano, Via C. Saldini, 50, 20133 Milano, Italy,. pp 22. 2010. Full-text 

    Popular scientific lectures

    2019

    Hellton, Kristoffer Herland; Løland, Anders. Kurs i maskinlæring. Kurs; Utdanningsdirektoratet, Oslo, 07.03.2019.

    Løland, Anders; Hellton, Kristoffer Herland. Maskinlæring på 1-2-3. Kurs; Norsk Regnesentral, Sentralen, Oslo, 15.10.2019.

    Løland, Anders; Hellton, Kristoffer Herland. Alt du kan lære om statistisk modellering og maskinlæring på en dag. Kurs; Norsk Regnesentral, Oslo, 10.11.2019.

    Løland, Anders; Hellton, Kristoffer Herland. Alt du kan lære om statistisk modellering og maskinlæring på en dag. Kurs; Norsk Regnesentral, Oslo, 30.01.2019.

    2018

    Løland, Anders; Hellton, Kristoffer Herland. Statistisk metode på 360 minutter – fra det enkle til det avanserte. Kurs; Norsk Regnesentral, Oslo, 28.02.2018.

    Rognebakke, Hanne Therese Wist; Hellton, Kristoffer Herland. Introduksjon til R – verktøy for statistisk analyse. Kurs; Norsk Regnesentral, Oslo, 01.03.2018.

    2017

    Løland, Anders; Hellton, Kristoffer Herland. Statistisk metode på 360 minutter – fra det enkle til det avanserte. Kurs, Bergen, 14.03.2017.

    Løland, Anders; Hellton, Kristoffer Herland. Statistisk metode på 360 minutter – fra det enkle til det avanserte. Kurs; Norsk Regnesentral, Blindern, Oslo, 08.03.2017.

    Løland, Anders; Hellton, Kristoffer Herland. Statistisk metode på 360 minutter – fra det enkle til det avanserte. Kurs; DNB, Oslo, 20.03.2017.

    Løland, Anders; Hellton, Kristoffer Herland. Statistisk metode på 360 minutter – fra det enkle til det avanserte. Kurs; DNB, Oslo, 24.03.2017.

    Løland, Anders; Hellton, Kristoffer Herland. Statistisk metode på 360 minutter – fra det enkle til det avanserte. Kurs; Norsk Regnesentral, Oslo, 22.11.2017.

    2016

    Hellton, Kristoffer Herland. Sju søyler med statistisk visdom. Populærmatematiske foredrag; Matematisk fagutvalg ved Universitetet i Oslo, Realfagsbiblioteket, 26.01.2016.

    2014

    Hellton, Kristoffer Herland. Skattejakten på genene våre – med statistikk som verktøy. Bestill en kreftforsker 2014, 16.10.2014.

    2012

    Hellton, Kristoffer Herland. Skattejakten på genene våre – med statistikk som verktøy. Bestill en kreftforsker 2012, 03.10.2012.

    Popular scientific articles

    2017

    Hellton, Kristoffer Herland; Røislien, Jo. Verdens første p-verdi. Tidsskrift for Den norske legeforening (ISSN 0029-2001). 137(12) pp 1-3. 26.06.2017.

    Media contributions

    2017

    Günther, Clara-Cecilie; Løland, Anders; Hellton, Kristoffer Herland. Arbeiderpartiet faller, men vinner. 2017. Finansavisen [Newspaper] 15.08.2017.

    Hellton, Kristoffer Herland. Faktisk delvis sant: Delstaten Colorado var først ute med legalisering av cannabis. Der har bruken økt i alle aldersgrupper, også blant barn fra 12 til 17 år. 2017. faktisk.no [Internet] 14.07.2017.

    Hellton, Kristoffer Herland. Ender med å velge det trygge. 2017. Dagens næringsliv [Newspaper] 19.09.2017.

    Løland, Anders; Günther, Clara-Cecilie; Hellton, Kristoffer Herland. Prognose, ikke en meningsmåling. 2017. abc nyheter [Internet] 15.07.2017.

    Løland, Anders; Günther, Clara-Cecilie; Hellton, Kristoffer Herland. Prognose, ikke en meningsmåling. 2017. Finansavisen [Newspaper] 08.07.2017.

    2015

    Hellton, Kristoffer Herland. Doktorgraden i boks. 2015. Budstikka [Newspaper] 10.02.2015.

    Hellton, Kristoffer Herland. Denne 27-åringens regnestykker skal gi bedre kreftbehandling. 2015. Budstikka [Newspaper] 11.04.2015.

    2017

    Hellton, Kristoffer Herland. Besøk i Dagbladets valgbod. 2017. db.no [Internet] 08.09.2017.

    Masters thesis

    2011

    Hellton, Kristoffer Herland. Stochastic Models for Smoothing Splines: A Bayesian Approach. 2011.

Postal address:
Norsk Regnesentral/
Norwegian Computing Center
P.O. Box 114 Blindern
NO-0314 Oslo
Norway
Visit address:
Norsk Regnesentral
Gaustadalleen 23a
Kristen Nygaards hus
NO-0373 Oslo.
Phone:
(+47) 22 85 25 00
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Postal address: Norsk Regnesentral/Norwegian Computing Center, P.O. Box 114 Blindern, NO-0314 Oslo, Norway
Visit address: Norsk Regnesentral, Gaustadalleen 23a, Kristen Nygaards hus, NO-0373 Oslo.
Phone: (+47) 22 85 25 00
AddressHow to get to NR