Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/1823
Title: A hierarchical incremental learning approach to task decomposition
Authors: Guan, SU
Li, P
Keywords: Neural network;Task decomposition;Incremental learning;Ordering
Issue Date: 2002
Publisher: Freund & Pettman
Citation: Journal of Intelligent Systems. 12 (3) 201-226
Abstract: In this paper, we suggest a new task decomposition method – hierarchical incremental class learning (HICL). In this approach, a -class problem is divided into sub-problems. The sub-problems are learnt sequentially in a hierarchical structure with sub-networks. Each sub-network takes the output from the sub-network immediately below it as well as the original input as its input. The output from each sub-network contains one more class than the sub-network immediately below it, and this output is fed into the sub-network above it. It not only reduces harmful interference among hidden layers, but also facilitates information transfer between classes during training. The later sub-networks can obtain learnt information from the earlier sub-networks. We also proposed two ordering algorithms – MSEF and MSEF-FLD to determine the hierarchical relationship between the sub-networks. The proposed HICL approach shows smaller regression error and classification error than the class decomposition and retraining approaches.
URI: http://bura.brunel.ac.uk/handle/2438/1823
ISSN: 0334-1860
Appears in Collections:Electronic and Computer Engineering
Dept of Electronic and Computer Engineering Research Papers

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