Search Results for author: Shirin Jalali

Found 6 papers, 2 papers with code

Bagged Deep Image Prior for Recovering Images in the Presence of Speckle Noise

1 code implementation23 Feb 2024 Xi Chen, Zhewen Hou, Christopher A. Metzler, Arian Maleki, Shirin Jalali

We investigate both the theoretical and algorithmic aspects of likelihood-based methods for recovering a complex-valued signal from multiple sets of measurements, referred to as looks, affected by speckle (multiplicative) noise.

GAP-net for Snapshot Compressive Imaging

1 code implementation13 Dec 2020 Ziyi Meng, Shirin Jalali, Xin Yuan

The hardware encoder typically consists of an (optical) imaging system designed to capture {compressed measurements}.

Efficient Deep Approximation of GMMs

no code implementations NeurIPS 2019 Shirin Jalali, Carl Nuzman, Iraj Saniee

The universal approximation theorem states that any regular function can be approximated closely using a single hidden layer neural network.

General Classification

Auto-encoders for compressed sensing

no code implementations NeurIPS Workshop Deep_Invers 2019 Pei Peng, Shirin Jalali, Xin Yuan

Compressed sensing is about recovering a structured high-dimensional signal ${\bf x}\in R^n$ from its under-determined noisy linear measurements ${\bf y}\in R^m$, where $m\ll n$.

Efficient Deep Learning of GMMs

no code implementations15 Feb 2019 Shirin Jalali, Carl Nuzman, Iraj Saniee

We show that a collection of Gaussian mixture models (GMMs) in $R^{n}$ can be optimally classified using $O(n)$ neurons in a neural network with two hidden layers (deep neural network), whereas in contrast, a neural network with a single hidden layer (shallow neural network) would require at least $O(\exp(n))$ neurons or possibly exponentially large coefficients.

General Classification

Linear Time Clustering for High Dimensional Mixtures of Gaussian Clouds

no code implementations19 Dec 2017 Dan Kushnir, Shirin Jalali, Iraj Saniee

Consequently, the expected overall running time of the algorithm is linear in $n$ and quasi-linear in $p$ at $o(\ln{p})O(np)$, and the sample complexity is independent of $p$.

Clustering Computational Efficiency +1

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