Search Results for author: Joseph Anderson

Found 5 papers, 0 papers with code

Geometric Methods for Robust Data Analysis in High Dimension

no code implementations25 May 2017 Joseph Anderson

Our algorithm again transforms samples from a Gaussian mixture model into samples which fit into the ICA model and, when processed by an ICA algorithm, result in recovery of the mixture parameters.

Vocal Bursts Intensity Prediction

Heavy-Tailed Analogues of the Covariance Matrix for ICA

no code implementations22 Feb 2017 Joseph Anderson, Navin Goyal, Anupama Nandi, Luis Rademacher

Like the current state-of-the-art, the new algorithm is based on the centroid body (a first moment analogue of the covariance matrix).

Heavy-tailed Independent Component Analysis

no code implementations2 Sep 2015 Joseph Anderson, Navin Goyal, Anupama Nandi, Luis Rademacher

Independent component analysis (ICA) is the problem of efficiently recovering a matrix $A \in \mathbb{R}^{n\times n}$ from i. i. d.

The More, the Merrier: the Blessing of Dimensionality for Learning Large Gaussian Mixtures

no code implementations12 Nov 2013 Joseph Anderson, Mikhail Belkin, Navin Goyal, Luis Rademacher, James Voss

The problem of learning this map can be efficiently solved using some recent results on tensor decompositions and Independent Component Analysis (ICA), thus giving an algorithm for recovering the mixture.

Efficient learning of simplices

no code implementations9 Nov 2012 Joseph Anderson, Navin Goyal, Luis Rademacher

We also show a direct connection between the problem of learning a simplex and ICA: a simple randomized reduction to ICA from the problem of learning a simplex.

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