A uniform design based PCA-SVM model for predicting optimum pH in chitinase / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 514-519, 2007.
Article
Dans Chinois
| WPRIM
| ID: wpr-327994
ABSTRACT
The principal component analysis (PCA) was applied to the data processing in training sets, the new principal components were then used as input data for support vector machine model. A prediction model for optimum pH of chitinase was established based on uniform design. When The regularized constant C, epsilon and Gamma were 10, 0.7 and 0.5 respectively, the calculated pHs fitted the reported optimum pHs of chitinase very well and the MAPEs (Mean Absolute Percent Error) was 3.76%. At the same time, the predicted pHs fitted the reported optimum pHs well and the MAE (Mean Absolute Error) was 0.42 pH unit. It was superior in fittings and predictions compared to the model based on back propagation (BP) neural network.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Algorithmes
/
Chimie
/
Chitinase
/
Modèles statistiques
/
/
Analyse en composantes principales
/
Concentration en ions d'hydrogène
/
Métabolisme
/
Modèles biologiques
Type d'étude:
Étude pronostique
/
Facteurs de risque
Limites du sujet:
Animaux
/
Humains
langue:
Chinois
Texte intégral:
Chinese Journal of Biotechnology
Année:
2007
Type:
Article
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