Direct Orthogonalization: some case studies
- Fernández Pierna, J.A. , Massart, D. , De Noord, O. & Ricoux, P. (2001). Direct Orthogonalization: some case studies. Chemom. Intell. Lab. Syst. 55: (1-2), 101-108.
| Type | Journal Article |
| Year | 2001 |
| Title | Direct Orthogonalization: some case studies |
| Journal | Chemom. Intell. Lab. Syst. |
| Label | U15-0524-fernandez-2001 |
| Recnumber | 347 |
| Volume | 55 |
| Issue | 1-2 |
| Pages | 101-108 |
| Date | 13/01/2001 |
| Endnote Keywords | pre-processing methods, direct orthogonalization, multivariate calibration|near-infrared spectra|multivariate calibration|signal correction|models| |
| Abstract | The effects of a Direct Orthogonalization before applying PCR acid PLS are studied for several data sets. In all cases the number of PLS factors needed to obtain the optimal model decreases but the number of PLS and DO factors together is the same as when PLS alone is used, However, the quality of the calibration model (measured as RMSECV) is usually not better when using DO, nor does the predictive quality (RMSEP) change significantly in most cases. The method may be used, however, to obtain a better understanding of the variation present in the data. (C) 2001 Elsevier Science B.V. All rights reserved. |
| Notes | EnglishArticleCHEMOMETR INTELL LAB SYST408VA |
| Author address | Fernandez Pierna Juan Antonio, Quality Department of Agro-food Products, Walloon Agricultural Research Centre (CRA-W), Chaussée de Namur, 24, B-5030 Gembloux, fernandez@cra.wallonie.be |
| Fichier | |
| Authors | Fernández Pierna, J.A., Massart, D., De Noord, O., Ricoux, P. |
