Inexact Gradient Projection and Fast Data Driven Compressed Sensing
نویسندگان
چکیده
منابع مشابه
Inexact Gradient Projection and Fast Data Driven Compressed Sensing
We study convergence of the iterative projected gradient (IPG) algorithm for arbitrary (possibly nonconvex) sets and when both the gradient and projection oracles are computed approximately. We consider different notions of approximation of which we show that the Progressive Fixed Precision (PFP) and the (1 + ε)-optimal oracles can achieve the same accuracy as for the exact IPG algorithm. We sh...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2018
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2018.2841379