A. Lumini and L. Nanni (Italy)
HIV-1 Protease, multiclassifier systems, hierarchicalclassifier.
Recently, several works have approached the HIV-1 protease specificity problem by applying a number of classifier creation and combination methods, from the field of machine learning. In this work we propose a hierarchical classifier (HC) architecture. We confirm previous results stating that linear classifiers obtain higher performance than non-linear classifier using orthonormal encoding. Moreover, we prove that our new hierarchical approach is a successful attempt to obtain a drastically error reduction with respect to the performance of linear classifiers. The error rate decreases from 9.1% using linear support vector machines to 7% using the new hierarchical classifier.
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