CH08_withFigures - Chapter 8 NEURAL NETWORKS FOR DATA...

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Chapter 8 NEURAL NETWORKS FOR DATA MINING
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Learning Objectives Understand the concept and different types of artificial neural networks (ANN) Learn the advantages and limitations of ANN Understand how backpropagation neural networks learn Understand the complete process of using neural networks Appreciate the wide variety of applications of neural networks
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Basic Concepts of Neural Networks Neural networks (NN) or artificial neural network (ANN ) Computer technology that attempts to build computers that will operate like a human brain. The machines possess simultaneous memory storage and works with ambiguous information
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Basic Concepts of Neural Networks Neural computing An experimental computer design aimed at building intelligent computers that operate in a manner modeled on the functioning of the human brain. See artificial neural networks (ANN) Perceptron Early neural network structure that uses no hidden layer
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Basic Concepts of Neural Networks Biological and artificial neural networks Neurons Cells (processing elements) of a biological or artificial neural network Nucleus The central processing portion of a neuron Dendrite The part of a biological neuron that provides inputs to the cell
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Basic Concepts of Neural Networks Biological and artificial neural networks Axon An outgoing connection (i.e., terminal) from a biological neuron Synapse The connection (where the weights are) between processing elements in a neural network
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Basic Concepts of Neural Networks
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Basic Concepts of Neural Networks
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Basic Concepts of Neural Networks Elements of ANN Topologies The type neurons are organized in a neural network Backpropagation The best-known learning algorithm in neural computing. Learning is done by comparing computed outputs to desired outputs of historical cases
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Basic Concepts of Neural Networks Processing elements (PEs) The neurons in a neural network Network structure (three layers) 1. Input 2. Intermediate (hidden layer) 3. Output
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Basic Concepts of Neural Networks
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Basic Concepts of Neural Networks Parallel processing An advanced computer processing technique that allows a computer to perform multiple processes at once—in parallel
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CH08_withFigures - Chapter 8 NEURAL NETWORKS FOR DATA...

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