Abstract
Feature extraction methods do generally not account for hierarchical structure in the data. For example, PCA and ICA provide transformations that solely depend on global properties of the overall dataset. We here present a general approach for the extraction of feature hierarchies from datasets and their use for classification or clustering. A hierarchy of features extracted from a dataset thereby constitutes a compact representation of the set that on the one hand can be used to characterize and understand the data and on the other hand serves as a basis to classify or cluster a collection of datasets. As a proof of concept, we demonstrate the feasibility of this approach with an application to mixtures of Gaussians with varying degree of structuredness and to a clinical EEG recording.
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Schubert, M., Kohlmorgen, J. (2008). Hierarchical Feature Extraction for Compact Representation and Classification of Datasets. In: Ishikawa, M., Doya, K., Miyamoto, H., Yamakawa, T. (eds) Neural Information Processing. ICONIP 2007. Lecture Notes in Computer Science, vol 4984. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69158-7_58
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DOI: https://doi.org/10.1007/978-3-540-69158-7_58
Publisher Name: Springer, Berlin, Heidelberg
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