نتایج جستجو برای: which are called artificial neural networks anns

تعداد نتایج: 6795163  

2015
Yang Liu Jie Yang Yuan Huang Lixiong Xu Siguang Li Man Qi

Artificial neural networks (ANNs) have been widely used in pattern recognition and classification applications. However, ANNs are notably slow in computation especially when the size of data is large. Nowadays, big data has received a momentum from both industry and academia. To fulfill the potentials of ANNs for big data applications, the computation process must be speeded up. For this purpos...

2006
Peter Dürr Claudio Mattiussi Dario Floreano

The evolution of artificial neural networks (ANNs) is often used to tackle difficult control problems. There are different approaches to the encoding of neural networks in artificial genomes. Analog Genetic Encoding (AGE) is a new implicit method derived from the observation of biological genetic regulatory networks. This paper shows how AGE can be used to simultaneously evolve the topology and...

Journal: :Statistics in medicine 2000
G Schwarzer W Vach M Schumacher

The application of artificial neural networks (ANNs) for prognostic and diagnostic classification in clinical medicine has become very popular. In particular, feed-forward neural networks have been used extensively, often accompanied by exaggerated statements of their potential. In this paper, the essentials of feed-forward neural networks and their statistical counterparts (that is, logistic r...

2003
Johann Schumann Pramod Gupta Stacy Nelson

Artificial neural networks (ANNs) are used as an alternative to traditional models in the realm of control. Unfortunately, ANN models rarely provide any indication of accuracy or reliability of their predictions. Before ANNs can be used in safety critical applications (aircraft, nuclear plants, etc.), a certification process must be established for ANN based controllers. Traditional approaches ...

2005
Phan Quoc Dzung Le Minh Phuong

This paper introduces the new ability of Artificial Neural Networks (ANNs) in estimating speed and controlling the separately excited DC motor. The neural control scheme consists of two parts. One is the neural estimator which is used to estimate the motor speed. The other is the neural controller which is used to generate a control signal for a converter. These two neurals are training by Leve...

ژورنال: سلامت و محیط زیست 2013
نقی پور, لیلا , فرهودی, رضا , قربانی, محمدعلی , کریمی, وحید ,

Background and Objectives: Weather pollution, caused by Ozone (O3) in metropolitans, is one of the major components of pollutants, which damage the environment and hurt all living organisms. Therefore, this study attempts to provide a model for the estimation of O3 concentration in Tabriz at two pollution monitoring stations: Abresan and Rastekuche. Materials and Methods: In this research, Art...

Journal: :Applied Artificial Intelligence 2006
Ivanka Videnova Dimitar Nedialkov Maya Dimitrova Silvia Popova

This work illustrates the use and some results of Artificial Neural Networks (ANNs) for data quality control of air pollutants. ANNs are applied to the short-term predicting of air pollutant concentrations in urban areas. Observed versus predicted data are compared to test the efficacy of ANNs in simulating environmental processes. Statistical analysis is used for choice of neural structure. Th...

Journal: :آب و خاک 0
قربانی دشتکی قربانی دشتکی همایی همایی مهدیان مهدیان

abstract infiltration is a significant process which controls the fate of water in the hydrologic cycle. the direct measurement of infiltration is time consuming, expensive and often impractical because of the large spatial and temporal variability. artificial neural networks (anns) are used as an indirect method to predict the hydrological processes. the objective of this study was to develop ...

2001
Seung-Ik Lee Joon-Hyun Ahn Sung-Bae Cho

In this paper, we evolve artificial neural networks (ANNs) with speciation and combine them with several methods. In general, an evolving system produces one optimal solution for a given problem. However, we argue that many other solutions exist in the final population, which can improve the overall performance. We propose a new method of evolving multiple speciated neural networks by fitness s...

2009
Anupam Das Saeed Muhammad Abdullah

In this paper we present an evolutionary system using genetic algorithm (GA) for evolving artificial neural networks (ANNs). Existing genetic algorithms for evolving ANNs suffer from the permutation problem as a result of recombination. Here we propose a novel encoding scheme for representing ANNs which avoids the permutation problem while efficiently evolving multilayer ANN architectures. The ...

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