The S2-ensemble fusion algorithm

Bruno Baruque, Emilio Corchado, Hujun Yin

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper presents a novel model for performing classification and visualization of high-dimensional data by means of combining two enhancing techniques. The first is a semi-supervised learning, an extension of the supervised learning used to incorporate unlabeled information to the learning process. The second is an ensemble learning to replicate the analysis performed, followed by a fusion mechanism that yields as a combined result of previously performed analysis in order to improve the result of a single model. The proposed learning schema, termed S2-Ensemble, is applied to several unsupervised learning algorithms within the family of topology maps, such as the Self-Organizing Maps and the Neural Gas. This study also includes a thorough research of the characteristics of these novel schemes, by means quality measures, which allow a complete analysis of the resultant classifiers from the viewpoint of various perspectives over the different ways that these classifiers are used. The study conducts empirical evaluations and comparisons on various real-world datasets from the UCI repository, which exhibit different characteristics, so to enable an extensive selection of situations where the presented new algorithms can be applied. © 2011 World Scientific Publishing Company.
    Original languageEnglish
    Pages (from-to)505-525
    Number of pages20
    JournalInternational Journal of Neural Systems
    Volume21
    Issue number6
    DOIs
    Publication statusPublished - Dec 2011

    Keywords

    • ensemble learning
    • growing neural gas
    • self-organization
    • Semi-supervised learning

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