Results 51 to 60 of about 232,203 (264)

Automatic Microaneurysm Detection Using the Sparse Principal Component Analysis-Based Unsupervised Classification Method

open access: yesIEEE Access, 2017
Since microaneurysms (MAs) can be seen as the earliest lesions in diabetic retinopathy, its detection plays a critical role in the diabetic retinopathy diagnosis.
Wei Zhou   +4 more
doaj   +1 more source

Alternating direction method of multipliers for penalized zero-variance discriminant analysis [PDF]

open access: yes, 2015
We consider the task of classification in the high dimensional setting where the number of features of the given data is significantly greater than the number of observations.
Ames, Brendan   +2 more
core   +3 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

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

Improving Sparse Representation-Based Classification Using Local Principal Component Analysis

open access: yes, 2018
Sparse representation-based classification (SRC), proposed by Wright et al., seeks the sparsest decomposition of a test sample over the dictionary of training samples, with classification to the most-contributing class.
A. Singer   +20 more
core   +1 more source

Certifiably optimal sparse principal component analysis [PDF]

open access: yesMathematical Programming Computation, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lauren Berk, Dimitris Bertsimas
openaire   +4 more sources

The Role of Invasive Procedures in the Treatment of Complicated Gastrointestinal Graft‐Versus‐Host Disease in Pediatric Patients

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Gastrointestinal graft‐versus‐host disease (GI GVHD) following hematopoietic stem cell transplant is typically managed with medical therapy, but surgery and angioembolization may be warranted in selected cases with life‐threatening complications.
Gaia Brunetti   +12 more
wiley   +1 more source

Robust sparse principal component analysis

open access: yes, 2011
A method for principal component analysis is proposed that is sparse and robust at the same time. The sparsity delivers principal components that have loadings on a small number of variables, making them easier to interpret. The robustness makes the analysis resistant to outlying observations.
Croux, Christophe   +2 more
openaire   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

A flexible framework for sparse simultaneous component based data integration

open access: yesBMC Bioinformatics, 2011
1 Background High throughput data are complex and methods that reveal structure underlying the data are most useful. Principal component analysis, frequently implemented as a singular value decomposition, is a popular technique in this respect.
Van Deun Katrijn   +4 more
doaj   +1 more source

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