Equivalence Learning in Protein Classification 1st Edition by Attila Kertész Farkas, András Kocsor, Sándor Pongor 9783540734987

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ISBN 13: 9783540734987

Author: Attila Kertész Farkas, András Kocsor, Sándor Pongor

We present a method, called equivalence learning, which applies a two-class classification approach to object-pairs defined within a multi-class scenario. The underlying idea is that instead of classifying objects into their respective classes, we classify object pairs either as equivalent (belonging to the same class) or non-equivalent (belonging to different classes). The method is based on a vectorisation of the similarity between the objects and the application of a machine learning algorithm (SVM, ANN, LogReg, Random Forests) to learn the differences between equivalent and non-equivalent object pairs, and define a unique kernel function that can be obtained via equivalence learning. Using a small dataset of archaeal, bacterial and eukaryotic 3-phosphoglycerate-kinase sequences we found that the classification performance of equivalence learning slightly exceeds those of several simple machine learning algorithms at the price of a minimal increase in time and space requirements

Equivalence Learning in Protein Classification 1st Table of contents:

1 Introduction
2 Methods

3 Experiments

4 Conclusions

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