Documents disponibles écrits par cet auteur

Hybrid method to predict melting points of organic compounds using group contribution + neural network + particle swarm algorithm / Juan A. Lazzús in Industrial & engineering chemistry research, Vol. 48 N° 18 (Septembre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 18 (Septembre 2009) . - pp. 8760–8766 Titre : Hybrid method to predict melting points of organic compounds using group contribution + neural network + particle swarm algorithm Type de document : texte imprimé Auteurs : Juan A. Lazzús, Auteur Année de publication : 2010 Article en page(s) : pp. 8760–8766 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Organic  compounds  Group  contribution  method  Artificial  neural  network Résumé : The melting points of organic compounds were estimated using a hybrid method that includes a simple group contribution method (GCM) implemented in an artificial neural network (ANN) replacing standart backpropagation with particle swarm optimization (PSO). A total of 439 compounds have been used to train the network developed using MatLab. Then, the melting points of 100 other compounds have been predicted and results compared to experimental data and other models availables in the literature. The study shows that the proposed GCM + ANN + PSO model represents an excellent alternative for the estimation of melting points of organic compounds (average absolute relative deviation (AARD) = 7%) from the knowledge of the molecular structure. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900431f [article] Hybrid method to predict melting points of organic compounds using group contribution + neural network + particle swarm algorithm [texte imprimé] / Juan A. Lazzús, Auteur . - 2010 . - pp. 8760–8766. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 18 (Septembre 2009) . - pp. 8760–8766 Mots-clés : Organic  compounds  Group  contribution  method  Artificial  neural  network Résumé : The melting points of organic compounds were estimated using a hybrid method that includes a simple group contribution method (GCM) implemented in an artificial neural network (ANN) replacing standart backpropagation with particle swarm optimization (PSO). A total of 439 compounds have been used to train the network developed using MatLab. Then, the melting points of 100 other compounds have been predicted and results compared to experimental data and other models availables in the literature. The study shows that the proposed GCM + ANN + PSO model represents an excellent alternative for the estimation of melting points of organic compounds (average absolute relative deviation (AARD) = 7%) from the knowledge of the molecular structure. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900431f