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20082023
most citedSparse image reconstruction for molecular imaging

30 citations · 127 across the 18 of their papers we have counts for

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Showing 2021Show all

5 papers · 1 filter

math.OC2021★ 8 cited

On Asymptotic Linear Convergence Rate of Iterative Hard Thresholding for Matrix Completion

Trung Vu, Evgenia Chunikhina, Raviv Raich

Iterative hard thresholding (IHT) has gained in popularity over the past decades in large-scale optimization. However, convergence properties of this method have only been explored…

math.OC2021★ 17 cited

On Asymptotic Linear Convergence of Projected Gradient Descent for Constrained Least Squares

Trung Vu, Raviv Raich

Many recent problems in signal processing and machine learning such as compressed sensing, image restoration, matrix/tensor recovery, and non-negative matrix factorization can be c…

eess.SY2021

A Closed-Form Bound on the Asymptotic Linear Convergence of Iterative Methods via Fixed Point Analysis

Trung Vu, Raviv Raich

In many iterative optimization methods, fixed-point theory enables the analysis of the convergence rate via the contraction factor associated with the linear approximation of the f…

cs.LG2021

Active Learning in Incomplete Label Multiple Instance Multiple Label Learning

Tam Nguyen, Raviv Raich

In multiple instance multiple label learning, each sample, a bag, consists of multiple instances. To alleviate labeling complexity, each sample is associated with a set of bag-leve…

math.OC2021

Exact Linear Convergence Rate Analysis for Low-Rank Symmetric Matrix Completion via Gradient Descent

Trung Vu, Raviv Raich

Factorization-based gradient descent is a scalable and efficient algorithm for solving low-rank matrix completion. Recent progress in structured non-convex optimization has offered…