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Artificial Neural Networks
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415.706FC Datamining and Machine
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Summary
Neural Network Learning
Artificial Neural Networks
Human Brain
Neural Network Representations
ALVINN Neural Network
Backpropagation Network Representations
Appropriate Problems for ANN
Perceptrons
A Perceptron
Linearly Separable
Representational Power of Perceptrons
Perceptron Learning Algorithms
Perceptron Training Rule
Intuition for Perceptron Training Rule
Gradient Descent Algorithm
Weight Update Rule
Training Error
Gradient-Descent Algorithm
Problems with Gradient Descent
Stochastic Gradient Descent
Differences between GD and SGD
Delta Rule vs. Perceptron Training Rule
Multilayer Networks & Nonlinear Surfaces
Multilayer Networks
Sigmoid Threshold Unit
Properties of the Backpropagation Algo.
Backpropagation Algorithm
Backpropagation Weight Training Rule
Termination Conditions for Backprop
Momentum
Arbitrary Acyclic Networks
Convergence and Local Minima
Heuristics to Overcome Local Minima
Representational Power of Feedforward Networks
Hypothesis Space & Inductive Bias
Hidden Layer Representations
Backprop in Action
Overfitting and Stopping Criteria
Error Plots
Face Recognition Task
Input Encoding
Output Encoding
Network Graph Structure
Other Algorithm Parameters
Learned Hidden Representations
Advanced Topics
Summary
Patricia Riddle
Fri May 15 13:00:36 NZST 1998