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Web information, regarded as a useful repository including abundant data and knowledge, attracts much attention from researchers and practitioners, and has been used to analyze and forecast economic and social hotspots in recent years. In this paper, a novel neural network based forecasting method is proposed for the unemployment rate prediction using search engine query data. The empirical results...
Variogram as an important mathematical model of Kriging can effectively describe the features of the variants in some districts of ore deposit. This paper presents a isoline drawing method which uses genetic algorithm (GA) to estimate the Kriging variogram parameters. This method called GA-based Kriging was compared to ordinary Kriging. The isolines interpolated by GA-based Kriging are of higher precision...
Since the BP neural network algorithm has some unavoidable disadvantages, such as slowly converging speed and easily running into local minimum, the genetic algorithm and simulated annealing algorithm with the overall search capability have been put forward to optimize authority value and threshold value of BP nerve network. In this paper, a new neural network model which is optimized by genetic algorithm...
Since the BP neural network algorithm has some unavoidable disadvantages, such as slowly converging speed and easily running into local infinitesimal, the genetic algorithm and simulated annealing algorithm with the overall search capability has been put forward to optimize authority value and threshold value of BP nerve network. In this paper, GA-SA-BP neural network algorithm model has been established...
The BP neural network algorithm has characteristics of slow convergence speed and local minimum value which could cause the loss of global optimal solution. In order to eliminate the shortcoming of BP neutral network algorithm, genetic algorithm is been put forward to optimize authority value and threshold value of BP nerve network. This paper establishes genetic neural network model. Study has been...
In order to estimate the progression or regression of edema at the bedside continuously, based the theoretic model, an improved Adaptive Genetic Algorithm(AGA) has been applied in optimization of conductivity reconstruction. Dynamic crossover and mutation operators, which are based on Maiming Distance, are brought forward in this paper to maintain generation's diversity. As a contrast, the Simple...
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