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Cluster Ensemble Selection (2008)

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by Xiaoli Z. Fern , Wei Lin
Citations:32 - 1 self
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BibTeX

@MISC{Fern08clusterensemble,
    author = {Xiaoli Z. Fern and Wei Lin},
    title = { Cluster Ensemble Selection },
    year = {2008}
}

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Abstract

This paper studies the ensemble selection problem for unsupervised learning. Given a large library of different clustering solutions, our goal is to select a subset of solutions to form a smaller but better performing cluster ensemble than using all available solutions. We design our ensemble selection methods based on quality and diversity, the two factors that have been shown to influence cluster ensemble performance. Our investigation revealed that using quality or diversity alone may not consistently achieve improved performance. Based on our observations, we designed three different selection approaches that jointly consider these two factors. We empirically evaluated their performances in comparison with both full ensembles and a random selection strategy. Our results indicated that by explicitly considering both quality and diversity in ensemble selection, we can achieve statistically significant performance improvement over full ensembles.

Keyphrases

cluster ensemble selection    full ensemble    ensemble selection problem    ensemble selection method    large library    unsupervised learning    available solution    different selection approach    cluster ensemble performance    ensemble selection    paper study    random selection strategy    significant performance improvement   

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