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09/10/2023
Deep Learning-Aided Subspace-Based DOA Recovery for Sparse Arrays
Sparse arrays enable resolving more direction of arrivals (DoAs) than an...
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06/11/2023
Detection and Recovery of Hidden Submatrices
In this paper, we study the problems of detection and recovery of hidden...
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02/07/2023
Planted Bipartite Graph Detection
We consider the task of detecting a hidden bipartite subgraph in a given...
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02/07/2023
Phase Transitions in the Detection of Correlated Databases
We study the problem of detecting the correlation between two Gaussian d...
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12/25/2022
Learning k-Level Sparse Neural Networks Using a New Generalized Group Sparse Envelope Regularization
We propose an efficient method to learn both unstructured and structured...
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09/12/2022
Mathematical Framework for Online Social Media Regulation
Social media platforms (SMPs) leverage algorithmic filtering (AF) as a m...
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04/14/2022
Optimal Reference for DNA Synthesis
In the recent years, DNA has emerged as a potentially viable storage tec...
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10/05/2021
Inferring Hidden Structures in Random Graphs
We study the two inference problems of detecting and recovering an isola...
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10/02/2021
Random Subgraph Detection Using Queries
The planted densest subgraph detection problem refers to the task of tes...
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06/04/2021
Fuzzy Clustering with Similarity Queries
The fuzzy or soft k-means objective is a popular generalization of the w...
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01/29/2021
Learning User Preferences in Non-Stationary Environments
Recommendation systems often use online collaborative filtering (CF) alg...
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08/28/2020
Centralized vs Decentralized Targeted Brute-Force Attacks: Guessing with Side-Information
According to recent empirical studies, a majority of users have the same...
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06/07/2020
Sharp Thresholds of the Information Cascade Fragility Under a Mismatched Model
We analyze a sequential decision making model in which decision makers (...
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10/28/2019
Same-Cluster Querying for Overlapping Clusters
Overlapping clusters are common in models of many practical data-segment...
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02/19/2019
Universality of Computational Lower Bounds for Submatrix Detection
In the general submatrix detection problem, the task is to detect the pr...
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06/19/2018
Reducibility and Computational Lower Bounds for Problems with Planted Sparse Structure
The prototypical high-dimensional statistics problem entails finding a s...
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05/29/2018