Works matching AU Kvalheim, Olav M.

Results: 28

Omega‐3 Marine Fatty Acid Supplementation to Healthy Subjects Interacts With Moderate Physical Activity to Provide a Cardiovascular Healthier Lipoprotein Subclass Profile.

Published in:

Journal of Chemometrics, 2024, v. 38, n. 12, p. 1, doi. 10.1002/cem.3604

By:

Kvalheim, Olav M.;
Rajalahti, Tarja

Publication type:

Article

Implications of confounding from unmodeled interactions between explanatory variables when using latent variable regression models to make inferences.

Published in:

Journal of Chemometrics, 2024, v. 38, n. 6, p. 1, doi. 10.1002/cem.3531

By:

Kvalheim, Olav M.;
Vidar, Warren S.;
Baumeister, Tim U. H.;
Linington, Roger G.;
Cech, Nadja B.

Publication type:

Article

Variable importance: Comparison of selectivity ratio and significance multivariate correlation for interpretation of latent‐variable regression models.

Published in:

Journal of Chemometrics, 2020, v. 34, n. 4, p. 1, doi. 10.1002/cem.3211

By:

Kvalheim, Olav M.

Publication type:

Article

Variable importance in latent variable regression models.

Published in:

Journal of Chemometrics, 2014, v. 28, n. 8, p. 615, doi. 10.1002/cem.2626

By:

Kvalheim, Olav M.;
Arneberg, Reidar;
Bleie, Olav;
Rajalahti, Tarja;
Smilde, Age K.;
Westerhuis, Johan A.

Publication type:

Article

History, philosophy and mathematical basis of the latent variable approach - from a peculiarity in psychology to a general method for analysis of multivariate data.

Published in:

Journal of Chemometrics, 2012, v. 26, n. 6, p. 210, doi. 10.1002/cem.2427

By:

Kvalheim, Olav M.

Publication type:

Article

Interpretation of partial least squares regression models by means of target projection and selectivity ratio plots.

Published in:

Journal of Chemometrics, 2010, v. 24, n. 7/8, p. 496, doi. 10.1002/cem.1289

By:

Kvalheim, Olav M.

Publication type:

Article

The 11th scandinavian symposium on chemometrics, Loen, Norway, 8-11 June 2009.

Published in:

Journal of Chemometrics, 2010, v. 24, n. 7/8, p. 343, doi. 10.1002/cem.1318

By:

Kvalheim, Olav M.;
Grung, Bjørn;
Nodland, Egil;
Rajalahti, Tarja

Publication type:

Article

X-tended target projection (XTP)-comparison with orthogonal partial least squares (OPLS) and PLS post-processing by similarity transformation (PLS + ST).

Published in:

Journal of Chemometrics, 2009, v. 23, n. 1, p. 49, doi. 10.1002/cem.1193

By:

Kvalheim, Olav M.;
Rajalahti, Tarja;
Arneberg, Reidar

Publication type:

Article

A comparison of different pre-treatment procedures for reducing heteroscedasticity and other irrelevant features in data prior to modelling of benthic count profiles.

Published in:

Journal of Chemometrics, 2007, v. 21, n. 7-9, p. 386, doi. 10.1002/cem.1087

By:

Flåten, Geir Rune;
Grung, Bjørn;
Kvalheim, Olav M.

Publication type:

Article

Quantification of pollution levels by multiway modelling.

Published in:

Journal of Chemometrics, 2004, v. 18, n. 3/4, p. 173, doi. 10.1002/cem.855

By:

Flåten, Geir Rune;
Grung, Bjørn;
Kvalheim, Olav M.

Publication type:

Article

Feasibility study of NIR for surveillance of a pharmaceutical process, including a study of different preprocessing techniques.

Published in:

Journal of Chemometrics, 2002, v. 16, n. 8-10, p. 529, doi. 10.1002/cem.754

By:

Stordrange, Laila;
Libnau, Fred Olav;
Malthe-Sørenssen, Dick;
Kvalheim, Olav M.

Publication type:

Article

Investigation of serum protein profiles in scrapie infected sheep by means of SELDI-TOF-MS and multivariate data analysis.

Published in:

BMC Research Notes, 2013, v. 6, n. 1, p. 1, doi. 10.1186/1756-0500-6-466

By:

Meling, Siv;
Kvalheim, Olav M.;
Arneberg, Reidar;
Bårdsen, Kjetil;
Hjelle, Anne;
Ulvund, Martha J.

Publication type:

Article

Reducing and quantifying uncertainty for pollution estimates calculated by modelling replicated benthic count data.

Published in:

Environmetrics, 2002, v. 13, n. 5/6, p. 579

By:

Geir Rune Flåten;
Bjørn Grung;
Olav M. Kvalheim

Publication type:

Article

An approach to assess and adjust for the influence of multicollinear covariates on metabolomics association patterns—applied to a study of the associations between a comprehensive lipoprotein profile and the homeostatic model assessment of insulin resistance

Published in:

Metabolomics, 2022, v. 18, n. 9, p. 1, doi. 10.1007/s11306-022-01931-6

By:

Kvalheim, Olav M.;
Rajalahti, Tarja;
Aadland, Eivind

Publication type:

Article

Assigning environmental variables to observed biological changes.

Published in:

Analytical & Bioanalytical Chemistry, 2004, v. 380, n. 3, p. 453, doi. 10.1007/s00216-004-2787-7

By:

Flåten, Geir Rune;
Botnen, Helge;
Grung, Bjørn;
Kvalheim, Olav M.

Publication type:

Article

Variation in Phenolic Chemistry in Zostera marina Seagrass along Environmental Gradients.

Published in:

Plants (2223-7747), 2021, v. 10, n. 2, p. 334, doi. 10.3390/plants10020334

By:

Sævdal Dybsland, Cecilie;
Bekkby, Trine;
Hasle Enerstvedt, Kjersti;
Kvalheim, Olav M.;
Rinde, Eli;
Jordheim, Monica;
Accoroni, Stefano

Publication type:

Article

Multivariate pattern analysis: a method and software to reveal, quantify, and visualize predictive association patterns in multicollinear data.

Published in:

BMC Bioinformatics, 2024, v. 25, n. 1, p. 1, doi. 10.1186/s12859-024-05660-6

By:

Baumeister, Tim U. H.;
Aadland, Eivind;
Linington, Roger G.;
Kvalheim, Olav M.

Publication type:

Article

Pre-analytical influence on the low molecular weight cerebrospinal fluid proteome.

Published in:

Proteomics - Clinical Applications, 2007, v. 1, n. 7, p. 699, doi. 10.1002/prca.200700126

By:

Berven, Frode S.;
Kroksveen, Ann C.;
Berle, Magnus;
Rajalahti, Tarja;
Flikka, Kristian;
Arneberg, Reidar;
Myhr, Kjell-Morten;
Vedeler, Christian;
Kvalheim, Olav M.;
Ulvik, Rune J.

Publication type:

Article

Active Smarter Kids (ASK): Rationale and design of a cluster-randomized controlled trial investigating the effects of daily physical activity on children's academic performance and risk factors for non-communicable diseases.

Published in:

2015

By:

Resaland, Geir K;
Moe, Vegard Fusche;
Aadland, Eivind;
Steene-Johannessen, Jostein;
Glosvik, øyvind;
Andersen, John R;
Kvalheim, Olav M;
McKay, Heather A;
Anderssen, Sigmund A;
ASK study group;
Glosvik, Øyvind

Publication type:

journal article

Active Smarter Kids (ASK): Rationale and design of a cluster-randomized controlled trial investigating the effects of daily physical activity on children's academic performance and risk factors for non-communicable diseases.

Published in:

BMC Public Health, 2015, v. 15, n. 1, p. 1, doi. 10.1186/s12889-015-2049-y

By:

Resaland, Geir K.;
Moe, Vegard Fusche;
Aadland, Eivind;
Steene-Johannessen, Jostein;
Glosvik, Øyvind;
Andersen, John R.;
Kvalheim, Olav M.;
McKay, Heather A.;
Anderssen, Sigmund A.

Publication type:

Article

Clinical and epidemiological metabonomics.

Published in:

2011

By:

Ala-Korpela, Mika;
Salomaa, Veikko;
Kvalheim, Olav M

Publication type:

Journal Article

Clinical and Epidemiological Metabonomics.

Published in:

Journal of Biomedicine & Biotechnology, 2011, p. 1, doi. 10.1155/2011/843150

By:

Ala-Korpela, Mika;
Salomaa, Veikko;
Kvalheim, Olav M.

Publication type:

Article

Compression of nth-order data arrays by B-splines. Part 2: Application to second-order FT-IR spectra.

Published in:

Journal of Chemometrics, 1994, v. 8, n. 2, p. 127, doi. 10.1002/cem.1180080205

By:

Alsberg, Bjørn K.;
Nodland, Egil;
Kvalheim, Olav M.

Publication type:

Article

Determination of a multivariate detection limit and local chemical rank by designing a non-parametric test from the zero-component regions.

Published in:

Journal of Chemometrics, 1993, v. 7, n. 4, p. 277, doi. 10.1002/cem.1180070406

By:

Liang, Yi-Zeng;
Kvalheim, Olav M.;
Höskuldsson, Agnar

Publication type:

Article

Compression of nth-order data arrays by B-splines. Part 1: Theory.

Published in:

Journal of Chemometrics, 1993, v. 7, n. 1, p. 61, doi. 10.1002/cem.1180070105

By:

Alsberg, Bjørn K.;
Kvalheim, Olav M.

Publication type:

Article

Resolution of strongly overlapping two-way multicomponent data by means of heuristic evolving latent projections.

Published in:

Journal of Chemometrics, 1993, v. 7, n. 1, p. 15, doi. 10.1002/cem.1180070103

By:

Liang, Yi-Zeng;
Kvalheim, Olav M.;
Rahmani, Ali;
Brereton, Richard G.

Publication type:

Article

Estimation of prediction error for samples within the calibration range.

Published in:

Journal of Chemometrics, 1992, v. 6, n. 4, p. 177, doi. 10.1002/cem.1180060403

By:

Karstang, Terje V.;
Toft, Jostein;
Kvalheim, Olav M.

Publication type:

Article

INVESTIGATION OF THE ALLOMERIZATION REACTION OF CHLOROPHYLL a: USE OF DIODE ARRAY HPLC, MASS SPECTROMETRY AND CHEMOMETRIC FACTOR ANALYSIS FOR THE DETECTION OF EARLY PRODUCTS.

Published in:

Photochemistry & Photobiology, 1994, v. 59, n. 1, p. 99, doi. 10.1111/j.1751-1097.1994.tb05007.x

By:

Brereton, Richard G.;
Rahmani, Ali;
Liang, Yi-zeng;
Kvalheim, Olav M.

Publication type:

Article