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MINES: Mutual Information Neuro-Evolutionary System

Behzadan, B.; (2011) MINES: Mutual Information Neuro-Evolutionary System. Doctoral thesis , UCL (University College London). Green open access

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Mutual information neuro-evolutionary system (MINES) presents a novel self-governing approach to determine the optimal quantity and connectivity of the hidden layer of a three layer feed-forward neural network founded on theoretical and practical basis. The system is a combination of a feed-forward neural network, back-propagation algorithm, genetic algorithm, mutual information and clustering. Back-propagation is used for parameter learning to reduce the system’s error; while mutual information aides back-propagation to follow an effective path in the weight space. A genetic algorithm changes the incoming synaptic connections of the hidden nodes, based on the fitness provided by the mutual information from the error space to the hidden layer, to perform structural learning. Mutual information determines the appropriate synapses, connecting the hidden nodes to the input layer; however, in effect it also links the back-propagation to the genetic algorithm. Weight clustering is applied to reduce hidden nodes having similar functionality; i.e. those possessing same connectivity patterns and close Euclidean angle in the weight space. Finally, the performance of the system is assessed on two theoretical and one empirical problems. A nonlinear polynomial regression problem and the well known two-spiral classification task are used to evaluate the theoretical performance of the system. Forecasting daily crude oil prices are conducted to observe the performance of MINES on a real world application.

Type: Thesis (Doctoral)
Title: MINES: Mutual Information Neuro-Evolutionary System
Open access status: An open access version is available from UCL Discovery
Language: English
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/1306177
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