Video Experimental Relacionado
Updated: Sep 9, 2025

07:35
Selecting Multiple Biomarker Subsets with Similarly Effective Binary Classification Performances
Published on: October 11, 2018
7.6K
Los cuadrados mínimos parciales escasos ponderados con selección conjunta de muestras y características para integrar
IEEE transactions on computational biology and bioinformatics
|September 3, 2025
Resumen
Este estudio introduce un nuevo método para los mínimos cuadrados parciales escasos (sPLS) para identificar subconjuntos de muestras específicos y eliminar valores atípicos en la fusión de datos. El nuevo enfoque mejora el sPLS para mejorar el análisis de datos de múltiples vistas y la detección de valores atípicos.
Área de la Ciencia:
- Biología computacional
- Aprendizaje automático
- Análisis estadístico
Sus antecedentes:
- Los mínimos cuadrados parciales es una técnica de reducción de dimensionalidad para la fusión de datos.
- El sPLS estándar no puede identificar subconjuntos latentes de muestras ni eliminar valores atípicos.
Objetivo del estudio:
- Desarrollar un nuevo método para la selección conjunta de muestras y características en sPLS.
- Ampliar el sPLS para la identificación de subconjuntos específicos de muestras y la eliminación de valores atípicos.
- Adaptar el método para la fusión de datos de múltiples vistas.
Principales métodos:
- Propuso un PLS limitado ponderado de $\ell _\infty /\ell _{0}$ para la selección de muestras y características.
- Demostró la propiedad Kurdyka-Łojasiewicz de las restricciones normales para la convergencia global.
- Desarrolló dos modelos wsPLS de múltiples vistas y algoritmos iterativos eficientes para la fusión de datos de múltiples vistas.
Principales resultados:
- El método $\ell _\infty /\ell _{0}$-wsPLS propuesto permite la selección conjunta de muestras y características.
- Se desarrollaron algoritmos globalmente convergentes para los modelos propuestos.
- Los experimentos con datos numéricos y biomédicos demostraron la eficacia de los métodos wsPLS de múltiples vistas.
Conclusiones:
- El nuevo método $\ell _\infty /\ell _{0}$-wsPLS identifica efectivamente los subconjuntos y valores atípicos de la muestra.
- Los modelos extendidos de vista múltiple wsPLS son eficientes para la fusión de datos de vista múltiple.
- Los algoritmos desarrollados aseguran la convergencia y demuestran la aplicabilidad práctica.
Más Videos Relacionados
Videos de Conceptos Relacionados
Cluster Sampling Method
12.7K
Appropriate sampling methods ensure that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
12.7K
Stratified Sampling Method
12.8K
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a stratified sample, divide the population into groups called strata and then take a...
To choose a stratified sample, divide the population into groups called strata and then take a...
12.8K
Multi-species Conserved Sequences
4.3K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
4.3K
Sampling Plans
258
Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
258
Single Nucleotide Polymorphisms-SNPs
15.8K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
15.8K
Genome-wide Association Studies-GWAS
14.1K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
14.1K

