Results 71 to 80 of about 1,020,465 (280)

Simplicial principal component analysis for density functions in Bayes spaces [PDF]

open access: yes, 2016
Probability density functions are frequently used to characterize the distributional properties of large-scale database systems. As functional compositions, densities primarily carry relative information.
Filzmoser, P.   +4 more
core   +1 more source

Sparse and Functional Principal Components Analysis [PDF]

open access: yes2019 IEEE Data Science Workshop (DSW), 2019
The published version of this paper incorrectly thanks "Luofeng Luo" instead of "Luofeng Liao" in the ...
Allen, Genevera I., Weylandt, Michael
openaire   +2 more sources

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

MULTILEVEL SPARSE FUNCTIONAL PRINCIPAL COMPONENT ANALYSIS [PDF]

open access: yes, 2010
The basic observational unit in this paper is a function. Data are assumed to have a natural hierarchy of basic units. A simple example is when functions are recorded at multiple visits for the same subject. Di et al.
Crainiceanu, Ciprian M., Di, Chong-Zhi
core   +1 more source

Robust Bayesian functional principal component analysis

open access: yesStatistics and Computing
We develop a robust Bayesian functional principal component analysis (RB-FPCA) method that utilizes the skew elliptical class of distributions to model functional data, which are observed over a continuous domain. This approach effectively captures the primary sources of variation among curves, even in the presence of outliers, and provides a more ...
Zhang, Jiarui   +2 more
openaire   +3 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Power transformer oil–paper insulation degradation modelling and prediction method based on functional principal component analysis

open access: yesIET Science, Measurement & Technology, 2022
This study is for the case where the available data of power transformer oil–paper insulation is limited to a small amount furfural data, to solve the problems in oil–paper insulation degradation modelling, such as few samples available, unknown function
Yuehan Qu   +4 more
doaj   +1 more source

Fast Generalized Functional Principal Components Analysis

open access: yes, 2023
We propose a new fast generalized functional principal components analysis (fast-GFPCA) algorithm for dimension reduction of non-Gaussian functional data. The method consists of: (1) binning the data within the functional domain; (2) fitting local random intercept generalized linear mixed models in every bin to obtain the initial estimates of the ...
Leroux, Andrew   +2 more
openaire   +2 more sources

Sparse Functional Principal Component Analysis in High Dimensions

open access: yesStatistica Sinica, 2023
27 pages, 2 figures, 3 ...
Hu, Xiaoyu, Yao, Fang
openaire   +2 more sources

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

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