In order to carry out an integrated assessment of sea water quality objectively, this paper based on the concept and principle of artificial neural network, generated appropriate training samples for BP artificial neu...In order to carry out an integrated assessment of sea water quality objectively, this paper based on the concept and principle of artificial neural network, generated appropriate training samples for BP artificial neural network model through the method of producing samples to the concentration of various pollution index of sea water quality from the viewpoint of threshold, established the BP artificial neural network model of sea water quality assessment using multi-layer neural network with error back-propagation algorithm. This model was used to assess water environment and obtain sea water quality categories of offshore area in Bohai Bay through calculating. The calculations shown that pollution index in river＇s wet season was higher than that in dry season from 2004 to 2007, and the pollution was particularly serious in 2005 and 2006, but a little better in 2007. The assessed results of cases shown that the model was reasonable in design and higher in generalization, meanwhile, it was common, objective and practical to sea water quality assessment.展开更多
The general frame for the system of intelligence science was proposed, the common features of the researching objects of the intelligence science were summarized. The intelligence science consists of three portions: s...The general frame for the system of intelligence science was proposed, the common features of the researching objects of the intelligence science were summarized. The intelligence science consists of three portions: scientific foundation, technical methodology and application fields. The common features of intelligence science include complexity, intersection, nonlinearity, anthropomorphic property, uncertainty, incompleteness and distribution etc. The new proposed scientific branch would reflect the new height, new thought and new way for developing the control science and intelligent systems from one angle, and present a strong wish for establishing a new branch of intelligence science.展开更多
Many applications of principal component analysis (PCA) can be found in dimensionality reduction. But linear PCA method is not well suitable for nonlinear chemical processes. A new PCA method based on im-proved input ...Many applications of principal component analysis (PCA) can be found in dimensionality reduction. But linear PCA method is not well suitable for nonlinear chemical processes. A new PCA method based on im-proved input training neural network (IT-NN) is proposed for the nonlinear system modelling in this paper. Mo-mentum factor and adaptive learning rate are introduced into learning algorithm to improve the training speed of IT-NN. Contrasting to the auto-associative neural network (ANN), IT-NN has less hidden layers and higher training speed. The effectiveness is illustrated through a comparison of IT-NN with linear PCA and ANN with experiments. Moreover, the IT-NN is combined with RBF neural network (RBF-NN) to model the yields of ethylene and propyl-ene in the naphtha pyrolysis system. From the illustrative example and practical application, IT-NN combined with RBF-NN is an effective method of nonlinear chemical process modelling.展开更多
Failure depth of coal seam floors is one of the important considerations that must be kept in mind when mining is carried out above a confined aquifer. In order to study the factors that affect the failure depth of co...Failure depth of coal seam floors is one of the important considerations that must be kept in mind when mining is carried out above a confined aquifer. In order to study the factors that affect the failure depth of coal seam floors such as mining depth, coal seam pitch, mining thickness, workface length and faults, we propose a combined artificial neural networks (ANN) prediction model for failure depth of coal seam floors on the basis of existing engineering data by using genetic algorithms to train the ANN. A practical engineering application at the Taoyuan Coal Mine indicates that this method can effectively determine the network struc- ture and training parameters, with the predicted results agreeing with practical measurements. Therefore, this method can be applied to relevant engineering projects with satisfactory results.展开更多
Based on the needs of personnel training in the sustainable development of enterprises, this paper has researched that cultivating high-quality technical personnel of enterprises is the requirements of the sustainable...Based on the needs of personnel training in the sustainable development of enterprises, this paper has researched that cultivating high-quality technical personnel of enterprises is the requirements of the sustainable development of enterprises. Universities in the continuing educational process should establish the basic principles of cultivating high-quality technical personnel of enterprises, and developing continuing education in universities and actively exploring the training mode of high-quality technical personnel of enterprises are proposed.展开更多
This paper takes Jingdong mall as an example to make a brief analysis of the development of human resources, staff training management and Jingdong employees＇ training management system. From Jingdong＇s management m...This paper takes Jingdong mall as an example to make a brief analysis of the development of human resources, staff training management and Jingdong employees＇ training management system. From Jingdong＇s management methods and by comparing their.costs and effects, other companies, no matter what fields they may engaged in, could gain some valuable experience and apply this to their daily administration. Besides, this paper emphasizes the. extremely significance of human resource to enterprises and other companies in trouble may get some enlightenment from the management ofstaffand employees.展开更多
Training and development for staff are the best option available for companies to survive in a highly competitive global business environment, but for those companies that operate business units located in different c...Training and development for staff are the best option available for companies to survive in a highly competitive global business environment, but for those companies that operate business units located in different cities or countries, it has a high cost for the great dispersion of staff. B-learning is presented as a viable and interesting option that achieves superior results in the learning process while significantly reducing the costs associated with training. In the state of the art, B-learning has been addressed with greater emphasis in academics and the few articles that focused on addressing business training, present partial solutions to the problems exposed. This paper proposes a model that offers a comprehensive solution for managing corporate training based on B-learning, and consists of three phases： design, development and implementation.展开更多
文摘In order to carry out an integrated assessment of sea water quality objectively, this paper based on the concept and principle of artificial neural network, generated appropriate training samples for BP artificial neural network model through the method of producing samples to the concentration of various pollution index of sea water quality from the viewpoint of threshold, established the BP artificial neural network model of sea water quality assessment using multi-layer neural network with error back-propagation algorithm. This model was used to assess water environment and obtain sea water quality categories of offshore area in Bohai Bay through calculating. The calculations shown that pollution index in river＇s wet season was higher than that in dry season from 2004 to 2007, and the pollution was particularly serious in 2005 and 2006, but a little better in 2007. The assessed results of cases shown that the model was reasonable in design and higher in generalization, meanwhile, it was common, objective and practical to sea water quality assessment.
基金Projects (60234030 60404021) supported by the National Natural Science Foundation of China
文摘The general frame for the system of intelligence science was proposed, the common features of the researching objects of the intelligence science were summarized. The intelligence science consists of three portions: scientific foundation, technical methodology and application fields. The common features of intelligence science include complexity, intersection, nonlinearity, anthropomorphic property, uncertainty, incompleteness and distribution etc. The new proposed scientific branch would reflect the new height, new thought and new way for developing the control science and intelligent systems from one angle, and present a strong wish for establishing a new branch of intelligence science.
基金Supported by Beijing Municipal Education Commission (No.xk100100435) and the Key Research Project of Science andTechnology from Sinopec (No.E03007).
文摘Many applications of principal component analysis (PCA) can be found in dimensionality reduction. But linear PCA method is not well suitable for nonlinear chemical processes. A new PCA method based on im-proved input training neural network (IT-NN) is proposed for the nonlinear system modelling in this paper. Mo-mentum factor and adaptive learning rate are introduced into learning algorithm to improve the training speed of IT-NN. Contrasting to the auto-associative neural network (ANN), IT-NN has less hidden layers and higher training speed. The effectiveness is illustrated through a comparison of IT-NN with linear PCA and ANN with experiments. Moreover, the IT-NN is combined with RBF neural network (RBF-NN) to model the yields of ethylene and propyl-ene in the naphtha pyrolysis system. From the illustrative example and practical application, IT-NN combined with RBF-NN is an effective method of nonlinear chemical process modelling.
基金Projects 50874103 supported by the National Natural Science Foundation of China2006CB202210 by the National Basic Research Program of China+1 种基金BK2008135 by the Natural Science Foundation of Jiangsu Provincethe Qing-lan Project of Jiangsu Province
文摘Failure depth of coal seam floors is one of the important considerations that must be kept in mind when mining is carried out above a confined aquifer. In order to study the factors that affect the failure depth of coal seam floors such as mining depth, coal seam pitch, mining thickness, workface length and faults, we propose a combined artificial neural networks (ANN) prediction model for failure depth of coal seam floors on the basis of existing engineering data by using genetic algorithms to train the ANN. A practical engineering application at the Taoyuan Coal Mine indicates that this method can effectively determine the network struc- ture and training parameters, with the predicted results agreeing with practical measurements. Therefore, this method can be applied to relevant engineering projects with satisfactory results.
文摘Based on the needs of personnel training in the sustainable development of enterprises, this paper has researched that cultivating high-quality technical personnel of enterprises is the requirements of the sustainable development of enterprises. Universities in the continuing educational process should establish the basic principles of cultivating high-quality technical personnel of enterprises, and developing continuing education in universities and actively exploring the training mode of high-quality technical personnel of enterprises are proposed.
文摘This paper takes Jingdong mall as an example to make a brief analysis of the development of human resources, staff training management and Jingdong employees＇ training management system. From Jingdong＇s management methods and by comparing their.costs and effects, other companies, no matter what fields they may engaged in, could gain some valuable experience and apply this to their daily administration. Besides, this paper emphasizes the. extremely significance of human resource to enterprises and other companies in trouble may get some enlightenment from the management ofstaffand employees.
文摘Training and development for staff are the best option available for companies to survive in a highly competitive global business environment, but for those companies that operate business units located in different cities or countries, it has a high cost for the great dispersion of staff. B-learning is presented as a viable and interesting option that achieves superior results in the learning process while significantly reducing the costs associated with training. In the state of the art, B-learning has been addressed with greater emphasis in academics and the few articles that focused on addressing business training, present partial solutions to the problems exposed. This paper proposes a model that offers a comprehensive solution for managing corporate training based on B-learning, and consists of three phases： design, development and implementation.
