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In this paper, the recently developed Extreme Learning Machine (ELM) is used for direct multicategory classification problems in the cancer diagnosis area. ELM avoids problems like local minima, improper learning rate and overfitting commonly faced by iterative learning methods and completes the training very fast. We have evaluated the multi-category classification performance of ELM on three benchmark microarray datasets for cancer diagnosis, namely, the GCM dataset, the Lung dataset and the Lymphoma dataset. The results indicate that ELM produces comparable or better classification accuracies with reduced training time and implementation complexity compared to artificial neural networks methods like conventional back-propagation ANN, Linder's SANN, and Support Vector Machine methods like SVM-OVO and Ramaswamy's SVM-OVA. ELM also achieves better accuracies for classification of individual categories.
Extreme learning machine, gene expression, microarray, multi-category classification, SVM

G. Huang, N. Sundararajan, R. Zhang and P. Saratchandran, "Multicategory Classification Using An Extreme Learning Machine for Microarray Gene Expression Cancer Diagnosis," in IEEE/ACM Transactions on Computational Biology and Bioinformatics, vol. 4, no. , pp. 485-495, 2007.
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