Search Results for author: Morteza Ashraphijuo

Found 7 papers, 0 papers with code

On Deterministic Sampling Patterns for Robust Low-Rank Matrix Completion

no code implementations5 Dec 2017 Morteza Ashraphijuo, Vaneet Aggarwal, Xiaodong Wang

In this letter, we study the deterministic sampling patterns for the completion of low rank matrix, when corrupted with a sparse noise, also known as robust matrix completion.

Low-Rank Matrix Completion valid

Scaled Nuclear Norm Minimization for Low-Rank Tensor Completion

no code implementations25 Jul 2017 Morteza Ashraphijuo, Xiaodong Wang

Minimizing the nuclear norm of a matrix has been shown to be very efficient in reconstructing a low-rank sampled matrix.

Rank Determination for Low-Rank Data Completion

no code implementations3 Jul 2017 Morteza Ashraphijuo, Xiaodong Wang, Vaneet Aggarwal

Moreover, for both single-view matrix and CP tensor, we are able to show that the obtained upper bound is exactly equal to the unknown rank if the lowest-rank completion is given.

Fundamental Conditions for Low-CP-Rank Tensor Completion

no code implementations31 Mar 2017 Morteza Ashraphijuo, Xiaodong Wang

Our proposed approach results in characterizing the maximum number of algebraically independent polynomials in terms of a simple geometric structure of the sampling pattern, and therefore we obtain the deterministic necessary and sufficient condition on the sampling pattern for finite completability of the sampled tensor.

Matrix Completion

Characterization of Deterministic and Probabilistic Sampling Patterns for Finite Completability of Low Tensor-Train Rank Tensor

no code implementations22 Mar 2017 Morteza Ashraphijuo, Xiaodong Wang

In this paper, we analyze the fundamental conditions for low-rank tensor completion given the separation or tensor-train (TT) rank, i. e., ranks of unfoldings.

Deterministic and Probabilistic Conditions for Finite Completability of Low-rank Multi-View Data

no code implementations3 Jan 2017 Morteza Ashraphijuo, Xiaodong Wang, Vaneet Aggarwal

We provide a deterministic necessary and sufficient condition on the sampling pattern for finite completability.

Matrix Completion

Deterministic and Probabilistic Conditions for Finite Completability of Low-Tucker-Rank Tensor

no code implementations6 Dec 2016 Morteza Ashraphijuo, Vaneet Aggarwal, Xiaodong Wang

We investigate the fundamental conditions on the sampling pattern, i. e., locations of the sampled entries, for finite completability of a low-rank tensor given some components of its Tucker rank.

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