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Neural Networks in Chemistry
Gasteiger, Johann ; Zupan, Jure
Angewandte Chemie (International ed.), 1993-04, Vol.32 (4), p.503-527
[Periódico revisado por pares]
Zug: Hüthig & Wepf Verlag
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Título:
Neural Networks in Chemistry
Autor:
Gasteiger, Johann
;
Zupan, Jure
Assuntos:
Chemistry
;
Computer chemistry
;
Exact sciences and technology
;
General and physical chemistry
;
General. Nomenclature, chemical documentation, computer chemistry
;
Networks
;
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
É parte de:
Angewandte Chemie (International ed.), 1993-04, Vol.32 (4), p.503-527
Notas:
istex:D42031460489D6D771B20C63EDD8758E48CD5B2F
ArticleID:ANIE199305031
ark:/67375/WNG-TXH0H2G2-C
Descrição:
The capabilities of the human brain have always fascinated scientists and led them to investigate its inner workings. Over the past 50 years a number of models have been developed which have attempted to replicate the brain's various functions. At the same time the development of computers was taking a totally different direction. As a result, today's computer architectures, operating systems, and programming have very little in common with information processing as performed by the brain. Currently we are experiencing a reevaluation of the brain's abilities, and models of information processing in the brain have been translated into algorithms and made widely available. The basic building‐block of these brain models (neural networks) is an information processing unit that is a model of a neuron. An artificial neuron of this kind performs only rather simple mathematical operations; its effectiveness is derived solely from the way in which large numbers of neurons may be connected to form a network. Just as the various neural models replicate different abilities of the brain, they can be used to solve different types of problem: the classification of objects, the modeling of functional relationships, the storage and retrieval of information, and the representation of large amounts of data. This potential suggests many possibilities for the processing of chemical data, and already applications cover a wide area: spectroscopic analysis, prediction of reactions, chemical process control, and the analysis of electrostatic potentials. All these are just a small sample of the great many possibilities. The emulation of the elementary functions of the human brain is the goal of artificial neural networks. It is possible, for instance, to recognize similarities in two objects, to classify objects, to derive properties of an object from its other properties, and to transform complex relations into a simpler representation without loss of information. In chemistry neural networks have already been applied for process control, for setting up the relation between structural features and spectra, and for predicting the chemical reactivity and the secondary structure of proteins.
Editor:
Zug: Hüthig & Wepf Verlag
Idioma:
Inglês
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