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- W2165364266 abstract "Parametric Embedding (PE) has recently been proposed as a general-purpose algorithm for class visualisation. It takes class posteriors produced by a mixture-based clustering algorithm and projects them in 2D for visualisation. However, although this fully modularised combination of objectives (clustering and projection) is attractive for its conceptual simplicity, in the case of high dimensional data, we show that a more optimal combination of these objectives can be achieved by integrating them both into a consistent probabilistic model. In this way, the projection step will fulfil a role of regularisation, guarding against the curse of dimensionality. As a result, the tradeoff between clustering and visualisation turns out to enhance the predictive abilities of the overall model. We present results on both synthetic data and two real-world high-dimensional data sets: observed spectra of early-type galaxies and gene expression arrays." @default.
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- W2165364266 date "2006-01-01" @default.
- W2165364266 modified "2023-09-26" @default.
- W2165364266 title "On Class Visualisation for High Dimensional Data: Exploring Scientific Data Sets" @default.
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- W2165364266 doi "https://doi.org/10.1007/11893318_15" @default.
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