| Revue: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000198263 |
| ISSN: | 0100-4042 |
| Autores: | Cerqueira, Eduardo O. de1 Andrade, Joao C. de Poppi, Ronei J Mello, Cesar |
| Instituciones: | 1Universidade de Franca, Faculdade de Farmacia, Franca, Sao Paulo. Brasil 2Universidade Estadual de Campinas, Instituto de Quimica, Campinas, Sao Paulo. Brasil |
| Año: | 2001 |
| Periodo: | Nov-Dic |
| Volumen: | 24 |
| Número: | 6 |
| Paginación: | 864-873 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Teórico, divulgación |
| Resumen en inglés | Neural Networks are a set of mathematical methods and computer programs designed to simulate the information process and the knowledge acquisition of the human brain. In last years its application in chemistry is increasing significantly, due the special characteristics for model complex systems. The basic principles of two types of neural networks, the multi-layer perceptrons and radial basis functions, are introduced, as well as, a pruning approach to architecture optimization. Two analytical applications based on near infrared spectroscopy are presented, the first one for determination of nitrogen content in wheat leaves using multi-layer perceptrons networks and second one for determination of BRIX in sugar cane juices using radial basis functions networks |
| Disciplinas: | Química, Ingeniería |
| Palabras clave: | Química analítica, Equipo y maquinaria, Redes neuronales, Análisis, Procesamiento de información, Calibración, Calibración multivariada, Simulación, Programas computacionales, Espectroscopía de infrarrojo cercano |
| Keyword: | Chemistry, Engineering, Analytical chemistry, Equipment and machinery, Neural networks, Analysis, Information processing, Calibration, Multivariate calibration, Simulation, Computer programs, Near infrared spectroscopy |
| Texte intégral: | Texto completo (Ver HTML) |
