Results 71 to 80 of about 5,585,535 (119)

Deformation of Marchenko-Pastur distribution for the correlated time series

open access: yes
We study the eigenvalue of the Wishart matrix, which is created from a time series with temporal correlation. When there is no correlation, the eigenvalue distribution of the Wishart matrix is known as the Marchenko-Pastur distribution (MPD) in the ...
Hisakado, Masato, Kaneko, Takuya
core  

Testing the significance of pricing factors of oil and gas companies. [PDF]

open access: yesPLoS One
Garcia-Amate A   +4 more
europepmc   +1 more source

Newton Meets Marchenko-Pastur: Massively Parallel Second-Order Optimization with Hessian Sketching and Debiasing

open access: yes
Motivated by recent advances in serverless cloud computing, in particular the function as a service (FaaS) model, we consider the problem of minimizing a convex function in a massively parallel fashion, where communication between workers is limited ...
Zhang, Fangzhao   +2 more
core  

Denoising Diffusion MRI: Considerations and implications for analysis

open access: yes, 2023
Manzano-Patron J   +5 more
europepmc   +1 more source

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