9 citations · 18 across the 5 of their papers we have counts for
7 papers
Quickest Detection for Changes in Maximal kNN Coherence of Random Matrices
Taposh Banerjee, Hamed Firouzi, Alfred O. Hero
This paper addresses the problem of quickest detection of a change in the maximal coherence between columns of a random matrix based on a sequence of matrix observation…
Non-parametric Quickest Change Detection for Large Scale Random Matrices
Taposh Banerjee, Hamed Firouzi, Alfred O. Hero
The problem of quickest detection of a change in the distribution of a random matrix based on a sequence of observations having a single unknown change point is conside…
Two-stage Sampling, Prediction and Adaptive Regression via Correlation Screening (SPARCS)
Hamed Firouzi, Alfred Hero, Bala Rajaratnam
This paper proposes a general adaptive procedure for budget-limited predictor design in high dimensions called two-stage Sampling, Prediction and Adaptive Regression via Correlatio…
Spectral Correlation Hub Screening of Multivariate Time Series
Hamed Firouzi, Dennis Wei, Alfred O. Hero
This chapter discusses correlation analysis of stationary multivariate Gaussian time series in the spectral or Fourier domain. The goal is to identify the hub time series, i.e., th…
Predictive Correlation Screening: Application to Two-stage Predictor Design in High Dimension
Hamed Firouzi, Bala Rajaratnam, Alfred Hero
We introduce a new approach to variable selection, called Predictive Correlation Screening, for predictor design. Predictive Correlation Screening (PCS) implements false positive c…
Approximate Sparse Decomposition Based on Smoothed L0-Norm
Hamed Firouzi, Masoud Farivar, Massoud Babaie-Zadeh +1
In this paper, we propose a method to address the problem of source estimation for Sparse Component Analysis (SCA) in the presence of additive noise. Our method is a generalization…