Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Firouzi, Hamed"'
This paper addresses the problem of quickest detection of a change in the maximal coherence between columns of a $n\times p$ random matrix based on a sequence of matrix observations having a single unknown change point. The random matrix is assumed t
Externí odkaz:
http://arxiv.org/abs/1508.04720
The problem of quickest detection of a change in the distribution of a $n\times p$ random matrix based on a sequence of observations having a single unknown change point is considered. The forms of the pre- and post-change distributions of the rows o
Externí odkaz:
http://arxiv.org/abs/1506.06199
This paper proposes a general adaptive procedure for budget-limited predictor design in high dimensions called two-stage Sampling, Prediction and Adaptive Regression via Correlation Screening (SPARCS). SPARCS can be applied to high dimensional predic
Externí odkaz:
http://arxiv.org/abs/1502.06189
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., those that are highly correlated with a specified number of other time s
Externí odkaz:
http://arxiv.org/abs/1403.3371
We introduce a new approach to variable selection, called Predictive Correlation Screening, for predictor design. Predictive Correlation Screening (PCS) implements false positive control on the selected variables, is well suited to small sample sizes
Externí odkaz:
http://arxiv.org/abs/1303.2378
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 of a recently proposed method (SL0), which has the advantage of direc
Externí odkaz:
http://arxiv.org/abs/0811.2868
In this paper an extension of the sparse decomposition problem is considered and an algorithm for solving it is presented. In this extension, it is known that one of the shifted versions of a signal s (not necessarily the original signal itself) has
Externí odkaz:
http://arxiv.org/abs/0809.3485
Akademický článek
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Akademický článek
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Publikováno v:
Excursions in Harmonic Analysis, Volume 4; 2015, p335-366, 32p
