Search Results - "Soltanolkotabi, Mahdi"
-
1
Structured Signal Recovery From Quadratic Measurements: Breaking Sample Complexity Barriers via Nonconvex Optimization
Published in IEEE transactions on information theory (01-04-2019)“…This paper concerns the problem of recovering an unknown but structured signal <inline-formula> <tex-math notation="LaTeX">{x}\in \mathbb {R} ^{n}…”
Get full text
Journal Article -
2
Phase retrieval from coded diffraction patterns
Published in Applied and computational harmonic analysis (01-09-2015)“…This paper considers the question of recovering the phase of an object from intensity-only measurements, a problem which naturally appears in X-ray…”
Get full text
Journal Article -
3
Convergence and Sample Complexity of Gradient Methods for the Model-Free Linear-Quadratic Regulator Problem
Published in IEEE transactions on automatic control (01-05-2022)“…Model-free reinforcement learning attempts to find an optimal control action for an unknown dynamical system by directly searching over the parameter space of…”
Get full text
Journal Article -
4
Precise statistical analysis of classification accuracies for adversarial training
Published in The Annals of statistics (01-08-2022)“…Despite the wide empirical success of modern machine learning algorithms and models in a multitude of applications, they are known to be highly susceptible to…”
Get full text
Journal Article -
5
Generalized Line Spectral Estimation via Convex Optimization
Published in IEEE transactions on information theory (01-06-2018)“…Line spectral estimation is the problem of recovering the frequencies and amplitudes of a mixture of a few sinusoids from equispaced samples. However, in a…”
Get full text
Journal Article -
6
Theoretical Insights Into the Optimization Landscape of Over-Parameterized Shallow Neural Networks
Published in IEEE transactions on information theory (01-02-2019)“…In this paper, we study the problem of learning a shallow artificial neural network that best fits a training data set. We study this problem in the…”
Get full text
Journal Article -
7
Toward Moderate Overparameterization: Global Convergence Guarantees for Training Shallow Neural Networks
Published in IEEE journal on selected areas in information theory (01-05-2020)“…Many modern neural network architectures are trained in an overparameterized regime where the parameters of the model exceed the size of the training dataset…”
Get full text
Journal Article -
8
Phase Retrieval via Wirtinger Flow: Theory and Algorithms
Published in IEEE transactions on information theory (01-04-2015)“…We study the problem of recovering the phase from magnitude measurements; specifically, we wish to reconstruct a complex-valued signal x ∈ ℂ n about which we…”
Get full text
Journal Article -
9
Sharp Time-Data Tradeoffs for Linear Inverse Problems
Published in IEEE transactions on information theory (01-06-2018)“…In this paper, we characterize sharp time-data tradeoffs for optimization problems used for solving linear inverse problems. We focus on the minimization of a…”
Get full text
Journal Article -
10
On the Linear Convergence of Random Search for Discrete-Time LQR
Published in IEEE control systems letters (01-07-2021)“…Model-free reinforcement learning techniques directly search over the parameter space of controllers. Although this often amounts to solving a nonconvex…”
Get full text
Journal Article -
11
Experimental robustness of Fourier ptychography phase retrieval algorithms
Published in Optics express (28-12-2015)“…Fourier ptychography is a new computational microscopy technique that provides gigapixel-scale intensity and phase images with both wide field-of-view and high…”
Get full text
Journal Article -
12
ROBUST SUBSPACE CLUSTERING
Published in The Annals of statistics (01-04-2014)“…Subspace clustering refers to the task of finding a multi-subspace representation that best fits a collection of points taken from a high-dimensional space…”
Get full text
Journal Article -
13
Deep Learning Techniques for Inverse Problems in Imaging
Published in IEEE journal on selected areas in information theory (01-05-2020)“…Recent work in machine learning shows that deep neural networks can be used to solve a wide variety of inverse problems arising in computational imaging. We…”
Get full text
Journal Article -
14
A GEOMETRIC ANALYSIS OF SUBSPACE CLUSTERING WITH OUTLIERS
Published in The Annals of statistics (01-08-2012)“…This paper considers the problem of clustering a collection of unlabeled data points assumed to lie near a union of lower-dimensional planes. As is common in…”
Get full text
Journal Article -
15
Super-resolution radar
Published in Information and inference (01-03-2016)“…In this paper, we study the identification of a time-varying linear system from its response to a known input signal. More specifically, we consider systems…”
Get full text
Journal Article -
16
Isometric sketching of any set via the Restricted Isometry Property
Published in Information and inference (11-12-2018)“…Abstract In this paper we show that for the purposes of dimensionality reduction certain class of structured random matrices behave similarly to random…”
Get full text
Journal Article -
17
CUDA: Convolution-Based Unlearnable Datasets
Published in 2023 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (01-06-2023)“…Large-scale training of modern deep learning models heavily relies on publicly available data on the web. This potentially unauthorized usage of online data…”
Get full text
Conference Proceeding -
18
On The Effectiveness of Active Learning by Uncertainty Sampling in Classification of High-Dimensional Gaussian Mixture Data
Published in ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (23-05-2022)“…Active learning aims to reduce the cost of labeling through selective sampling. Despite reported empirical success over passive learning, many popular active…”
Get full text
Conference Proceeding -
19
A unified approach to sparse signal processing
Published in EURASIP journal on advances in signal processing (22-02-2012)“…A unified view of the area of sparse signal processing is presented in tutorial form by bringing together various fields in which the property of sparsity has…”
Get full text
Journal Article Book Review -
20
Accelerated Wirtinger Flow for Multiplexed Fourier Ptychographic Microscopy
Published in 2018 25th IEEE International Conference on Image Processing (ICIP) (01-10-2018)“…Fourier ptychographic microscopy enables gigapixel-scale imaging, with both large field-of-view and high resolution. Using a set of low-resolution images that…”
Get full text
Conference Proceeding