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AN ADAPTIVE STRATEGY FOR THE CLASSIFICATION OF G-PROTEIN COUPLED RECEPTORS

By S. Mohamed, D. Rubin and T. Marwala

Abstract

Abstract: One of the major problems in computational biology is the inability of existing classification models to incorporate expanding and new domain knowledge. This problem of static classification models is addressed in this paper by the introduction of incremental learning for problems in bioinformatics. Many machine learning tools have been applied to this problem using static machine learning structures such as neural networks or support vector machines that are unable to accommodate new information into their existing models. We utilize the fuzzy ARTMAP as an alternate machine learning system that has the ability of incrementally learning new data as it becomes available. The fuzzy ARTMAP is found to be comparable to many of the widespread machine learning systems. The use of an evolutionary strategy in the selection and combination of individual classifiers into an ensemble system, coupled with the incremental learning ability of the fuzzy ARTMAP is proven to be suitable as a pattern classifier. The algorithm presented is tested using data from the G-Coupled Protein Receptors Database and shows good accuracy of 83%. The system presented is also generally applicable, and can be used in problems in genomics and proteomics

Topics: Key words, Bioinformatics, GPCR, Incremental Learning, Fuzzy ARTMAP
Year: 2009
OAI identifier: oai:CiteSeerX.psu:10.1.1.135.5153
Provided by: CiteSeerX
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