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PETROS DRINEAS
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Selected work | Use "Search" to find all #grant(s): 18 #paper(s): 132 #patent(s): 2
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Paper
CUR Matrix Decompositions for Improved Data Analysis
IF:8
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Abstract:
Principal components analysis and, more generally, the Singular Value Decomposition are fundamental data analysis tools that express a data matrix in terms of a sequence of ...
Michael W Mahoney
;
Petros Drineas
;
Proceedings of the National Academy of Sciences
2009-01-01
Paper
Fast Approximation Of Matrix Coherence And Statistical Leverage
IF:7
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: Interestingly, to achieve our result we judiciously apply random projections on both sides of A.
MICHAEL MAHONEY
et. al.
icml
2012-12-29
Paper
Fast Approximation Of Matrix Coherence And Statistical Leverage
IF:7
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Abstract:
The statistical leverage scores of a matrix $A$ are the squared row-norms of the matrix containing its (top) left singular vectors and the coherence is the largest leverage score. ...
PETROS DRINEAS
et. al.
arxiv-cs.DS
2011-09-18
Paper
Relative-Error CUR Matrix Decompositions
IF:7
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: In this paper, we propose and study matrix approximations that are explicitly expressed in terms of a small number of columns and/or rows of the data matrix, and thereby more amenable to interpretation in terms of the original data.
Petros Drineas
;
Michael W. Mahoney
;
S. Muthukrishnan
;
arxiv-cs.DS
2007-08-27
Paper
An Improved Approximation Algorithm For The Column Subset Selection Problem
IF:6
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: We present and analyze a novel two-stage algorithm that runs in $O(\min\{mn^2,m^2n\})$ time and returns as output an $m \times k$ matrix $C$ consisting of exactly $k$ columns of $A$.
Christos Boutsidis
;
Michael W. Mahoney
;
Petros Drineas
;
arxiv-cs.DS
2008-12-22
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