Results 41 to 50 of about 29,752 (189)
Heart failure (HF) prediction is a challenging issue in medical informatics and is considered a deadliest disease worldwide. Recent research has been concentrated on features transformation and selection for improved HF prediction.
Ali, Akhtar +11 more
core +1 more source
Cyclic Nonlinear Correlation Analysis for Time Series
Principal component analysis (PCA) and kernel PCA allow the decorrelation of data with respect to a basis that is found via variance maximization. However, these techniques are based on pointwise correlations.
Christopher M. A. Bonenberger +3 more
doaj +1 more source
Learning with Cross-Kernels and Ideal PCA
We describe how cross-kernel matrices, that is, kernel matrices between the data and a custom chosen set of `feature spanning points' can be used for learning. The main potential of cross-kernels lies in the fact that (a) only one side of the matrix scales with the number of data points, and (b) cross-kernels, as opposed to the usual kernel matrices ...
Franz J. Király +2 more
openaire +2 more sources
Association test based on SNP set: logistic kernel machine based test vs. principal component analysis. [PDF]
GWAS has facilitated greatly the discovery of risk SNPs associated with complex diseases. Traditional methods analyze SNP individually and are limited by low power and reproducibility since correction for multiple comparisons is necessary.
Yang Zhao +5 more
doaj +1 more source
Evaluation of the Kernel Test Weight and Selection of Identification Indexes of Maize Inbred Lines
Kernel test weight (KTW) is one of the important assessment indexes of maize quality grade and one of the important influencing factors of yield. This study analyzed 12 traits related to KTW in 321 maize inbred lines using multivariate methods.
Tao Shen +11 more
doaj +1 more source
Hybrid Artificial Intelligent System For Human Gender Classification [PDF]
This paper introduces an automatic human gender classification (male or female ) depending on ultrasound images using artificial neural network to classify the gender .
Laheeb M. Al-Zoubaidy, Susan H. Mohammad
doaj +1 more source
Principal component analysis (PCA) is a method used to reduce dimentionality of the dataset. However, the use of PCA failed to carry out the problem of non-linear and non-separable data.
Ismail Djakaria +2 more
doaj
Two-Phase Incremental Kernel PCA for Learning Massive or Online Datasets
As a powerful nonlinear feature extractor, kernel principal component analysis (KPCA) has been widely adopted in many machine learning applications. However, KPCA is usually performed in a batch mode, leading to some potential problems when handling ...
Feng Zhao +5 more
doaj +1 more source
An Approximate Version of Kernel PCA
We propose an analog of kernel Principal Component Analysis (kernel PCA). Our algorithm is based on an approximation of PCA which uses Gram-Schmidt orthonormalization. We combine this approximation with Support Vector Machine kernels to obtain a nonlinear generalization of PCA.
openaire +2 more sources
This study presents an improved face recognition system tackling the Eigenface algorithm's limitations regarding lighting variance, class separability, and classification.
Amyr Edmar Francisco +3 more
doaj +1 more source

