Jacobus van Zyl

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—Systematic Luby Transform (fountain) codes are investigated as a possible incremental redundancy scheme for EDGE. The convolutional incremental redundancy scheme currently used by EDGE is replaced by the fountain approach. The results of the simulations performed for each incremental redundancy scheme show that the fountain approach outperforms the(More)
Many machine learning algorithms for concept learning have been developed using description languages based on propositional logic. In this paper we show how to extend the so-called set covering approach to learn d a s siJication rules based on fuzzy sets andfizzy logic cla.csifcations. This increases the expressive power of the learning algaritlzm for(More)
Declaration I, the undersigned, hereby declare that the work contained in this thesis is my own original work and that I have not previously in its entirety or in part submitted it at any university for a degree. Abstract This thesis explores the use of neural networks for predicting difficult, real-world time series. We first establish and demonstrate(More)