An Information Geometric Framework for Dimensionality Reduction

Details An Information Geometric Framework for Dimensionality Reduction An Information Geometric Framework for Dimensionality Reduction

2008-09-29

arxiv.org/abs/0809.4866v1

Statistics

Machine Learning

Scientific paper

This report concerns the problem of dimensionality reduction through information geometric methods on statistical manifolds. While there has been considerable work recently presented regarding dimensionality reduction for the purposes of learning tasks such as classification, clustering, and visualization, these methods have focused primarily on Riemannian manifolds in Euclidean space. While sufficient for many applications, there are many high-dimensional signals which have no straightforward and meaningful Euclidean representation. In these cases, signals may be more appropriately represented as a realization of some distribution lying on a statistical manifold, or a manifold of probability density functions (PDFs). We present a framework for dimensionality reduction that uses information geometry for both statistical manifold reconstruction as well as dimensionality reduction in the data domain.

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