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    ORL
    2011
    270views Operations Research» more  ORL 2011»
    Convex approximations to sparse PCA via Lagrangian duality
    13 years 2 months ago
    Convex approximations to sparse PCA via Lagrangian duality
    Download  www.tau.ac.il
    We derive a convex relaxation for cardinality constrained Principal Component Analysis (PCA) by using a simple representation of the L1 unit ball and standard Lagrangian duality. ...
    Ronny Luss, Marc Teboulle
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    CORR
    2011
    Springer
    202views Education» more  CORR 2011»
    Noisy matrix decomposition via convex relaxation: Optimal rates in high dimensions
    13 years 2 months ago
    Noisy matrix decomposition via convex relaxation: Optimal rates in high dimensions
    Download  www.eecs.berkeley.edu
    We analyze a class of estimators based on a convex relaxation for solving highdimensional matrix decomposition problems. The observations are the noisy realizations of the sum of ...
    Alekh Agarwal, Sahand Negahban, Martin J. Wainwrig...
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