activity
20172026
most citedAnomalous chained turbulence in actively driven flows on spheres

33 citations · 51 across the 13 of their papers we have counts for

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Showing 2022Show all

5 papers · 1 filter

math.NA2022★ 1 cited

Fast Principal Component Analysis for Cryo-EM Images

Nicholas F. Marshall, Oscar Mickelin, Yunpeng Shi +1

Principal component analysis (PCA) plays an important role in the analysis of cryo-EM images for various tasks such as classification, denoising, compression, and ab-initio modelin…

math.NA2022★ 14 cited

Autocorrelation analysis for cryo-EM with sparsity constraints: Improved sample complexity and projection-based algorithms

Tamir Bendory, Yuehaw Khoo, Joe Kileel +2

The number of noisy images required for molecular reconstruction in single-particle cryo-electron microscopy (cryo-EM) is governed by the autocorrelations of the observed, randomly…

math.NA2022

Fast expansion into harmonics on the disk: a steerable basis with fast radial convolutions

Nicholas F. Marshall, Oscar Mickelin, Amit Singer

We present a fast and numerically accurate method for expanding digitized images representing functions on supported on the disk $\{x \in \mathbb{R}^2 : |x|…

cs.MA2022

The Role of Heterogeneity in Autonomous Perimeter Defense Problems

Aviv Adler, Oscar Mickelin, Ragesh K. Ramachandran +2

When is heterogeneity in the composition of an autonomous robotic team beneficial and when is it detrimental? We investigate and answer this question in the context of a minimally…

math.NA2022★ 1 cited

An optimal scheduled learning rate for a randomized Kaczmarz algorithm

Nicholas F. Marshall, Oscar Mickelin

We study how the learning rate affects the performance of a relaxed randomized Kaczmarz algorithm for solving , where is a consistent linear s…