A data analysis algorithm based on statistical filtration and linear discriminant analysis

Author(s):  
Yurong Li ◽  
Guobo Xiang ◽  
Wei Xu
2013 ◽  
Vol 433-435 ◽  
pp. 456-459
Author(s):  
Wei Hong Zhu ◽  
Cheng Zhe Xu

This paper presents a new method for detecting lead pollution in rice by analyzing hyperspectral data. First, preprocessing method is used to remove the outliers which deviate so much from other hyperspectral data. Then, dimensionality-reduced data are made by using discrete wavelet transform. Finally, linear discriminant analysis is utilized to extract the feature which characterizes polluted and unpolluted rice. The experimental result based on the proposed method shows the good performance in detecting lead pollution in rice.


OENO One ◽  
1987 ◽  
Vol 21 (1) ◽  
pp. 43
Author(s):  
Rosa M. Tapias ◽  
Pilar Callao ◽  
Maria S. Larrechi ◽  
Josep Guasch ◽  
F. X. Rius

<p style="text-align: justify;">L'application de l'analyse multidimensionnelle des données à la reconnaissance des vins de trois appellations de la Rioja, permet de choisir huit variables physico-chimiques, facilement accessibles, comme étant hautement significatives. En plus de ces paramètres analytiques, le cépage et les données climatiques ont un rôle important. Les meilleurs résultats sont obtenus au moyen de la méthode d'analyse discriminante linéaire des données avec laquelle le pourcentage d'attribution correcte des vins atteint 91,3 p. 100.</p><p style="text-align: justify;">+++</p><p style="text-align: justify;">Application of multidimensional data analysis to the recognition of three Rioja appellation wines led to selecting 8 easly-obtained physicochemical variables as being highly significant. In addition to these analytical parameters, variety and climatic conditions play an important role. The best results were obtained using linear discriminant analysis of the data, which gave 91,3 p. 100 correct recognition of the wines.</p>


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