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• W2077389076 abstract "Abstract Background High-throughput functional genomics technologies generate large amount of data with hundreds or thousands of measurements per sample. The number of sample is usually much smaller in the order of ten or hundred. This poses statistical challenges and calls for appropriate solutions for the analysis of this kind of data. Results Principal component discriminant analysis (PCDA), an adaptation of classical linear discriminant analysis (LDA) for high-dimensional data, has been selected as an example of a base learner. The multiple versions of PCDA models from repeated double cross-validation were aggregated, and the final classification was performed by majority voting. The performance of this approach was evaluated by simulation, genomics, proteomics and metabolomics data sets. Conclusions The aggregating PCDA learner can improve the prediction performance, provide more stable result, and help to know the variability of the models. The disadvantage and limitations of aggregating were also discussed." @default.
• W2077389076 created "2016-06-24" @default.
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• W2077389076 date "2011-05-13" @default.
• W2077389076 modified "2023-10-06" @default.
• W2077389076 title "To aggregate or not to aggregate high-dimensional classifiers" @default.
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• W2077389076 doi "https://doi.org/10.1186/1471-2105-12-153" @default.
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