Evaluating the effectiveness of Bayesian feature selection

Ian T. Nabney, David J. Evans, Yann Brule, Caroline Gordon

    Research output: Chapter in Book/Report/Conference proceedingChapter in a book

    Abstract

    A practical Bayesian approach for inference in neural network models has been available for ten years, and yet it is not used frequently in medical applications. In this chapter we show how both regularisation and feature selection can bring significant benefits in diagnostic tasks through two case studies: heart arrhythmia classification based on ECG data and the prognosis of lupus. In the first of these, the number of variables was reduced by two thirds without significantly affecting performance, while in the second, only the Bayesian models had an acceptable accuracy. In both tasks, neural networks outperformed other pattern recognition approaches.
    Original languageEnglish
    Title of host publicationApplications of probabilistic modelling in medical informatics and bioinformatics
    EditorsR. Dybowski, D. Husmeier, S. J. Roberts
    Place of PublicationGermany
    PublisherSpringer
    Pages371-389
    Number of pages19
    ISBN (Print)9781846281198
    DOIs
    Publication statusPublished - 2005

    Publication series

    NameAdvanced information and knowledge processing
    PublisherSpringer

    Keywords

    • Bayesian approach, inference, neural network models, diagnostic tasks, heart arrhythmia, prognosis of lumps

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