Download An Introduction to Neural Network Methods for Differential by Neha Yadav, Anupam Yadav, Manoj Kumar PDF

By Neha Yadav, Anupam Yadav, Manoj Kumar

This publication introduces various neural community equipment for fixing differential equations bobbing up in technological know-how and engineering. The emphasis is put on a deep knowing of the neural community strategies, which has been awarded in a more often than not heuristic and intuitive demeanour. This process will permit the reader to appreciate the operating, potency and shortcomings of every neural community procedure for fixing differential equations. the target of this booklet is to supply the reader with a valid figuring out of the principles of neural networks and a complete creation to neural community tools for fixing differential equations including contemporary advancements within the suggestions and their applications.

The publication includes 4 significant sections. part I involves a short review of differential equations and the proper actual difficulties coming up in technological know-how and engineering. part II illustrates the historical past of neural networks ranging from their beginnings within the Forties via to the renewed curiosity of the Eighties. A basic creation to neural networks and studying applied sciences is gifted in part III. This part additionally contains the outline of the multilayer perceptron and its studying equipment. In part IV, the several neural community equipment for fixing differential equations are brought, together with dialogue of the newest advancements within the field.

Advanced scholars and researchers in arithmetic, computing device technology and diverse disciplines in technology and engineering will locate this ebook a useful reference source.

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Extra info for An Introduction to Neural Network Methods for Differential Equations

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It has been observed by the authors that good results can be obtained if they restrict the values of the variables to the interval [−5, 5]. The knowledge about the partial differential equations and its boundary and/or initial conditions has been incorporated into the structures and the training sets of several neural networks and found that the results for one and two dimensional problem are very good in respect of efficiency, accuracy, convergence and stability. Smaoui and Al-Enezi in [41] presented combination of Karhunen-Loeve (K-L) decomposition and artificial neural networks to analyze the dynamics of two non linear partial differential equations known as the Kuramato-Sivashinsky (K-S) equation and the two dimensional Navier-Stokes (N-S) equation.

Penalty method is efficient but it does not satisfy the boundary conditions exactly, hence the combination of both these methods is used by the authors. Penalty method is used to obtain a model that satisfies the boundary condition approximately and then refines using the synergy method. Solutions obtained by the given approach shows that the method is equally effective, and retains its advantage over the Galerkin Finite element method. It also provides accurate solutions in a closed analytic form that satisfy the boundary conditions at the selected points.

Generally, inputs, weights, thresholds and neuron output could be real value or binary or bipolar. All inputs are multiplied to their weights and added together to form the net input to the neuron called net. Mathematically, we can write net ¼ wi1 x1 þ wi2 x2 þ Á Á Á wij xj þ h ð3:5Þ where h is a threshold value that is added to the neurons. The neuron behaves as activation or mapping function f ðnetÞ to produce an output y which can be expressed as: y ¼ f ðnetÞ ¼ f n X ! wij xj þ h ð3:6Þ j¼1 where f is called the neuron activation function or the neuron transfer function.

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