accurate prediction of river flow is one of the most important factors in surface water recourses management especially during floods and drought periods. in fact deriving a proper method for flow forecasting is an important challenge in water resources management and engineering. although, during recent decades, some black box models based on artificial neural networks (ann), have been develop...

the proposed iafc neural networks have both stability and plasticity because theyuse a control structure similar to that of the art-1(adaptive resonance theory) neural network.the unsupervised iafc neural network is the unsupervised neural network which uses the fuzzyleaky learning rule. this fuzzy leaky learning rule controls the updating amounts by fuzzymembership values. the supervised iafc ...

the current paper aims to investigate the effect of entrepreneurial marketing on innovation considering the moderating effect of two-factor learning orientation and organizational structure. then, the relationship between innovation and the marketing performance was assessed. in this research, sales and marketing managers of 42 sample companies were selected from three industries including: ind...

background ecstasy or 3-4, methylenedioxymethamphetamine (mdma), as an amphetamine derivate, could lead to learning and memory impairment. objectives as the hippocampus is responsible for learning and memory, herein we evaluated acute and chronic effects of mdma on the structure of the hippocampus. materials and methods male wistar rats (200-250 g) received single or multiple injections of mdma...

the stability of learning rate in neural network identifiers and controllers is one of the challenging issues which attracts great interest from researchers of neural networks. this paper suggests adaptive gradient descent algorithm with stable learning laws for modified dynamic neural network (mdnn) and studies the stability of this algorithm. also, stable learning algorithm for parameters of ...

the advent of computer has revolutionized a variety of fields including education thus paving the way for educational science to enter a new stage. this effect has exhibited itself well in language learning. the development of computer technology and the resulting language learning software, as a reliable tool in the educational system of developed countries, has attracted the attention of both...