Analog-Counter-Based Conscience Mechanism in Kohonen's Neural Network Implemented in CMOS 0.18 μm Technology

2006 ◽  
Author(s):  
Tomasz Talaska ◽  
Ryszard Wojtyna ◽  
Rafal Dlugosz ◽  
Krzysztof Iniewski ◽  
Witold Pedrycz
Keyword(s):  
Neural Network ◽  
Kohonen’S Neural Network

scholarly journals Chemical Fingerprint of Non-aged Artisanal Sugarcane Spirits Using Kohonen Artificial Neural Network

2021 ◽  
Author(s):  
Daniela Caetano ◽  
Clara Mariana Gonçalves Lima ◽  
Ananda Lima Sanson ◽  
Debora Faria Silva ◽  
Guilherme de Souza Hassemer ◽  
...  
Keyword(s):  
Neural Network ◽  
Principal Component ◽  
Chemical Compounds ◽  
The Other ◽  
Chemical Profile ◽  
Alcohol Content ◽  
Volatile Acidity ◽  
Kohonen’S Neural Network ◽  
Chemometric Treatment

Abstract This study focuses on the determination of the chemical profile of 24 non-aged Brazilian artisanal sugarcane spirits (cachaça) samples through chromatographic quantification and chemometric treatment via principal component analysis (PCA) and Kohonen’s neural network. In total, forty-seven (47) chemical compounds were identified in the samples of non-aged artisanal cachaça, in addition to determining alcohol content, volatile acidity, and copper. For the PCA of the chemical compounds’ profile, it could be observed that the samples were grouped into seven groups. On the other hand, the variables’ bearings were grouped together, making it difficult to separate the components in relation to the sample groups and reducing the chances of obtaining all the necessary information. However, by using a Kohonen’s neural network, samples were grouped into eight groups. This tool proved to be more accurate in the groups’ formation. Among the chemical classes of the compounds observed, esters stood out, followed by alcohols, acids, aldehydes, ketones, phenol, and copper. The abundance of esters in these samples may suggest that these compounds would be part of the regional standard for cachaças produced in the region of Salinas, Minas Gerais.

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