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Optimality and Sub-optimality of PCA I: Spiked Random Matrix Models [PDF]
Annals of Statistics, 2018 A central problem of random matrix theory is to understand the eigenvalues of spiked random matrix models, introduced by Johnstone, in which a prominent eigenvector (or "spike") is planted into a random matrix.
Amelia Perry +3 more
semanticscholar +1 more source
The PCa Tumor Microenvironment [PDF]
Cancer Microenvironment, 2011 The tumor microenvironment (TME) is a very complex niche that consists of multiple cell types, supportive matrix and soluble factors. Cells in the TME consist of both host cells that are present at tumor site at the onset of tumor growth and cells that are recruited in either response to tumor- or host-derived factors.
Evan T. Keller +3 more
openaire +2 more sources
High Density Lipoproteins Inhibit Oxidative Stress-Induced Prostate Cancer Cell Proliferation [PDF]
, 2018 Recent evidence suggests that oxidative stress can play a role in the pathogenesis and the progression of prostate cancer (PCa). Reactive oxygen species (ROS) generation is higher in PCa cells compared to normal prostate epithelial cells and this ...
Botta, Margherita +8 more
core +2 more sources
The Kikuchi Hierarchy and Tensor PCA [PDF]
IEEE Annual Symposium on Foundations of Computer Science, 2019 For the tensor PCA (principal component analysis) problem, we propose a new hierarchy of increasingly powerful algorithms with increasing runtime. Our hierarchy is analogous to the sum-of-squares (SOS) hierarchy but is instead inspired by statistical ...
Alexander S. Wein +2 more
semanticscholar +1 more source
Rainfall prediction system for Bangladesh using long short-term memory
Open Computer Science, 2022 Rainfall prediction is a challenging task and has extreme significance in weather forecasting. Accurate rainfall prediction can play a great role in agricultural, aviation, natural phenomenon, flood, construction, transport, etc.
Billah Mustain +5 more
doaj +1 more source
APPLICATION OF PRINCIPAL COMPONENT ANALYSIS TO DROUGHT INDICATORS OF THREE REPRESENTATIVE CROATIAN REGIONS [PDF]
e-GFOS, 2021 Drought has become a very frequent hydrological event globally, including in Croatia. It can generally be explained by air temperature and precipitation changes on an annual and seasonal basis, owing to climate change.
Lidija Tadić +3 more
doaj +1 more source
Scaled PCA: A New Approach to Dimension Reduction
Management Sciences, 2019 This paper proposes a novel supervised learning technique for forecasting: scaled principal component analysis (sPCA). The sPCA improves the traditional principal component analysis (PCA) by scaling each predictor with its predictive slope on the target ...
Dashan Huang +4 more
semanticscholar +1 more source
Electronic Journal of Plant Breeding, 2016 White grained finger millet genotypes has become a thrust area in finger millet breeding due to increased demand of nonglutinous food products and lesser acceptability of brown grained finger millet.
Salej Sood +4 more
doaj +1 more source
Phenotypic characterization of human prostatic stromal cells in primary cultures derived from human tissue samples [PDF]
, 2013 Emerging evidence has shown that the tumor microenvironment plays a crucial role in prostate cancer (PCa) development and progression. However, the mechanism(s) through which stromal cells regulate epithelial cells and the differences among prostatic ...
Clemente, Luigi Di +7 more
core +1 more source
Assessing Salicornia europaea Tolerance to Salinity at Seed Germination Stage
Agriculture, 2020 Salicornia europaea, a halophytic species, was investigated to assess its ability to withstand salinity during seed germination, and to identify suitable indices to interpret salt tolerance at this delicate stage.
Roberta Calone +3 more
doaj +1 more source