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Davoian, Kristina: Advancing evolution of artifcial neural networks through behavioral adaptation. 2011
Inhalt
Abstract
Acknowledgements
List of Figures
List of Tables
Abbreviations
1 Introduction
1.1 Research Question
1.2 Scope of the Thesis
1.3 Contributions
1.4 Thesis Overview
2 Fundamental Concepts
2.1 Evolutionary Algorithms
2.1.1 Genetic Algorithms
2.1.2 Evolution Strategies
2.1.3 Evolutionary Programming
2.1.4 Genetic Programming
2.1.5 Global Convergence and Computational Complexity of EAs
2.1.6 Parallelization of EAs: Parallel Evolutionary Algorithms
2.2 Artificial Neural Networks
2.2.1 Classification of ANNs
2.2.2 Learning in ANNs
2.2.3 Overview of Supervised Learning Algorithms
2.2.4 Generalization in ANNs
2.3 Evolutionary Artificial Neural Networks
2.3.1 Genotype and Phenotype
2.3.2 Evolution of Connection Weights in EANNs
2.3.3 Difficulties by Evolutionary Learning
2.3.4 Evolution of Architectures in EANNs
2.3.5 Modification of EANNs: Parallel Evolutionary Artificial Neural Networks
3 Mutation-based Evolutionary Algorithms
3.1 Adaptation and Self-Adaptation in EP and ES
3.2 Classical Evolutionary Programming
3.3 Fast Evolutionary Programming
3.4 Combined Approaches
3.4.1 Improved Fast Evolutionary Programming
3.4.2 Mixed Evolutionary Programming
3.5 Conclusions
4 Including Phenotype Information in Mutation
4.1 Genotype Information in NWEA
4.2 Deriving Phenotype Information
4.2.1 Empirical Study
4.2.1.1 Results
4.2.2 Analytical Study
4.2.2.1 Results
4.3 Network Weight-based Evolutionary Algorithm
4.4 Conclusions
5 Experimental Studies
5.1 Evolving Connection Weights
5.1.1 Experimental Setup
5.1.2 Investigating the Impact of a Particular Error in NWEA
5.1.3 Convergence Speed: Iterations and Time
5.1.4 Percentage of Successful Improvements
5.1.5 Increasing Accuracy of the Evolved Solutions
5.2 Evolving Connection Weights and Architectures
5.2.1 Encoding Scheme for ANN Topologies and Connection Weigths
5.2.2 Architecture Mutation During Evolution
5.2.3 Data Sets and Experimental Setup
5.2.3.1 The Mackey-Glass Chaotic Time Series Problem
5.2.3.2 The Breast Cancer Data Set
5.2.3.3 The Heart Disease Data Set
5.2.3.4 The Diabetes Data Set
5.2.3.5 The Thyroid Data Set
5.2.4 Evolving ANNs with NWEA: Results and Comparative Analysis
5.2.5 Exploring the Impact of Activation Function Type
5.2.5.1 Results and Discussions
5.2.6 Mixing Different Search Biases in NWEA
5.2.6.1 Length of Gaussian and Cauchy Jumps
5.2.6.2 Combined NWEA
5.2.6.3 Mixed NWEA
5.2.6.4 Results and Discussion
5.3 Parallelizing NWEA: Investigating Generalization in PEANNs
5.3.1 Parallelization strategies
5.3.2 Experimental Setup
5.3.3 Results and Discussions
6 Conclusions
6.1 Summary
6.2 Future Work
Bibliography