SingleLayer Perceptrons PART 2 Neural Networks and Learning
- Slides: 11
Single-Layer Perceptrons (PART 2) Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Chapter Organization • Linear Adaptive Filters and LMS algorithm – Adaptive Filtering Problem – Unconstrained Optimization Techniques • Method of Steepest Descent • Newton’s Method • Gauss-Newton Method – – Linear Least Squares Filter LMS Algorithm Learning Curves Learning-Rate Annealing Schedules (mostly omitted) • Rosenblatt’s Perceptron – Perceptron Convergence Theorem – Relation between Perceptron and Bayes Classifier for a Gaussian Environment (omitted) Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Linear Least-Squares Filter • Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Least-Mean-Square (LMS) Algorithm • • Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Learning Curves Squared Error • Iterations Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Chapter Organization • Linear Adaptive Filters and LMS algorithm – Adaptive Filtering Problem – Unconstrained Optimization Techniques • Method of Steepest Descent • Newton’s Method • Gauss-Newton Method – – Linear Least Squares Filter LMS Algorithm Learning Curves Learning-Rate Annealing Schedules (mostly omitted) • Rosenblatt’s Perceptron – Perceptron Convergence Theorem – Relation between Perceptron and Bayes Classifier for a Gaussian Environment (omitted) Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
(Rosenblatt’s) Perceptron • LMS algorithm was described with a linear neuron but the perceptron is built around a nonlinear neuron • Output is +1 for positive and -1 for negative (can be thought as 2 classes) • The synaptic weights can be adapted by using perceptron convergence algorithm Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Perceptron Convergence Theorem • Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Perceptron Convergence Theorem • Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Perceptron Convergence Theorem • Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
Perceptron Convergence Theorem Neural Networks and Learning Machines, Third Edition Simon Haykin Copyright © 2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.
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