Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Sijmen de Jong"'
Autor:
Jos Mojet, Sijmen de Jong
Publikováno v:
Grasas y Aceites, Vol 45, Iss 1-2, Pp 42-47 (1994)
During a 3-year FLAIR study extra virgin olive oils, varying in species, degree of ripeness and extraction method, were evaluated by 6 different institutes according to QDA or GDI-methods in order to identify parameters related to the quality of extr
Externí odkaz:
https://doaj.org/article/dce7550c3d46433b82e6a89ca6278e10
Publikováno v:
Journal of Chemometrics, 17, 323-337. John Wiley and Sons Ltd
Journal of Chemometrics, 6, 17, 323-337
JOURNAL OF CHEMOMETRICS, 17(6), 323-337. John Wiley and Sons Ltd
Journal of Chemometrics, 6, 17, 323-337
JOURNAL OF CHEMOMETRICS, 17(6), 323-337. John Wiley and Sons Ltd
Multiblock or multiset methods are starting to be used in chemistry and biology to study complex data sets. In chemometrics, sequential multiblock methods are popular; that is, methods that calculate one component at a time and use deflation for find
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a00d79bb03b07cc727c6b7b939b2ec23
https://doi.org/10.1002/cem.811
https://doi.org/10.1002/cem.811
Publikováno v:
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS, 58(1), 3-13. Elsevier
Chemometrics and Intelligent Laboratory Systems, 58, 3-13. Elsevier B.V
Chemometrics and Intelligent Laboratory Systems, 58, 3-13. Elsevier B.V
While both Tucker3 and PARAFAC models can be viewed as latent variable models extending principal component analysis (PCA) to multi-way data, most fundamental properties of PCA do not extend to both models. This has practical importance, which will b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::211c2471900027a9fd8d4f5c94e2b2d8
https://doi.org/10.1016/s0169-7439(01)00134-4
https://doi.org/10.1016/s0169-7439(01)00134-4
Publikováno v:
Chemometrics and Intelligent Laboratory Systems, 56, 13-25. Elsevier B.V
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS, 56(1), 13-25. Elsevier
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS, 56(1), 13-25. Elsevier
In the present paper the concept of orthogonal signal correction (OSC) as a spectral preprocessing method is discussed and a number of OSC algorithms that have appeared are compared from a theoretical viewpoint. Since all of these algorithms had some
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b322fdca189aa36c903ff96969b9e77d
https://doi.org/10.1016/s0169-7439(01)00102-2
https://doi.org/10.1016/s0169-7439(01)00102-2
Publikováno v:
Insect Biochemistry and Molecular Biology. 30:899-907
The potencies of natural adipokinetic hormones and synthetic variants have been determined in Locusta migratoria using the lipid mobilisation assay in vivo, and/or the acetate uptake assay in vitro. These data are combinations of previously published
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e4024268f9b3cfd03acffc651288144
https://doi.org/10.1016/s0965-1748(00)00078-3
https://doi.org/10.1016/s0965-1748(00)00078-3
Autor:
Johannes Heidema, Sijmen de Jong
Publikováno v:
Food Quality and Preference. 9:115-118
Eight different coffees have been evaluated for liking by consumers of different sexes and agegroups and from five different European countries. Analysis of variance showed that Sample, Country, Sex, Sample-Country and Country-Agegroup contributed mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af3ea33b238f0758d2a79c3dda3022a5
https://doi.org/10.1016/s0950-3293(97)00042-6
https://doi.org/10.1016/s0950-3293(97)00042-6
Publikováno v:
Food Quality and Preference. 9:111-114
Generalized Procrustes analysis has been applied to mean panel data from five European panels regarding the sensory characteristics of eight coffee samples. Each of the panels used its own set of attributes. The average product configuration accounte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48df4445cd154d0f36047d5d14a36271
https://doi.org/10.1016/s0950-3293(97)00041-4
https://doi.org/10.1016/s0950-3293(97)00041-4
Autor:
Cajo J. F. ter Braak, Sijmen de Jong
Publikováno v:
Journal of Chemometrics, 12(1), 41-54
Journal of Chemometrics 12 (1998) 1
Journal of Chemometrics 12 (1998) 1
A simple objective function in terms of undeflated X is derived for the latent variables of multivariate PLS regression. The objective function fits into the basic framework put forward by Burnham et al. (J. Chemometrics, 10, 31–45 (1996)). We show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f9abc355a78dbb75c87f19d570de5c3
https://doi.org/10.1002/(sici)1099-128x(199801/02)12:1<41::aid-cem500>3.0.co
https://doi.org/10.1002/(sici)1099-128x(199801/02)12:1<41::aid-cem500>3.0.co
Autor:
Sijmen de Jong
Publikováno v:
Journal of Chemometrics. 12:77-81
Three alternative approaches are discussed for finding the final calibration model (regression coefficients) in PLS regression of k-way Y on N-way X. The simplest approach is to skip the deflation of the X-data. From the observation that the specific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4531c81ccee38cdfdf8c154fd124935b
https://doi.org/10.1002/(sici)1099-128x(199801/02)12:1<77::aid-cem496>3.0.co
https://doi.org/10.1002/(sici)1099-128x(199801/02)12:1<77::aid-cem496>3.0.co
Autor:
Aloke Phatak, Sijmen de Jong
Publikováno v:
Journal of Chemometrics. 11:311-338
Our objective in this article is to clarify partial least squares (PLS) regression by illustrating the geometry of NIPALS and SIMPLS, two algorithms for carrying out PLS, in both object and variable space. We introduce the notion of the tangent rotat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8afc9b71861c09aaa379c73022f1bc49
https://doi.org/10.1002/(sici)1099-128x(199707)11:4<311::aid-cem478>3.0.co
https://doi.org/10.1002/(sici)1099-128x(199707)11:4<311::aid-cem478>3.0.co