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Rapid advances in high-throughput technologies have led to considerable interest in analyzing genome-scale data in the context of biological pathways, with the goal of identifying functional systems that are involved in a given phenotype.…

定量方法 · 定量生物学 2015-06-01 Rosemary Braun , Sahil Shah

Genome Wide Association Studies (GWAS) and eQTL analyses have produced a large and growing number of genetic associations linked to a wide range of human phenotypes. As of 2013, there were more than 11,000 SNPs associated with a trait as…

基因组学 · 定量生物学 2016-09-28 John Platig , Peter Castaldi , Dawn DeMeo , John Quackenbush

We propose a novel diverse feature selection method based on determinantal point processes (DPPs). Our model enables one to flexibly define diversity based on the covariance of features (similar to orthogonal matching pursuit) or…

Genome-wide association studies have proven to be essential for understanding the genetic basis of disease. However, many complex traits---personality traits, facial features, disease subtyping---are inherently high-dimensional, impeding…

应用统计 · 统计学 2015-12-09 Ashlee Valente , Geoffrey Ginsburg , Barbara E Engelhardt

Introduction: To leverage functionality and clinical relevance into understanding systems biology, one needs to understand the pathway of the genetic effects on risk factors/disease through intermediate molecular levels, such as…

基因组学 · 定量生物学 2018-09-14 Azam Yazdani , Akram Yazdani , Philip L. Lorenzi , Ahmad Samiei

In genetic studies, not only can the number of predictors obtained from microarray measurements be extremely large, there can also be multiple response variables. Motivated by such a situation, we consider semiparametric dimension reduction…

统计方法学 · 统计学 2013-09-25 Heng Lian , Shujie Ma

Through genome-wide association studies (GWAS), disease susceptible genetic variables can be identified by comparing the genetic data of individuals with and without a specific disease. However, the discovery of these associations poses a…

机器学习 · 计算机科学 2023-08-15 Zhendong Sha , Yuanzhu Chen , Ting Hu

We consider the problems of hypothesis testing and model comparison under a flexible Bayesian linear regression model whose formulation is closely connected with the linear mixed effect model and the parametric models for SNP set analysis…

统计方法学 · 统计学 2015-02-24 Xiaoquan Wen

Penalized variable selection for high dimensional longitudinal data has received much attention as accounting for the correlation among repeated measurements and providing additional and essential information for improved identification and…

统计方法学 · 统计学 2021-07-20 Fei Zhou , Xi Lu , Jie Ren , Kun Fan , Shuangge Ma , Cen Wu

The recent explosion of genetic and high dimensional biobank and 'omic' data has provided researchers with the opportunity to investigate the shared genetic origin (pleiotropy) of hundreds to thousands of related phenotypes. However,…

统计方法学 · 统计学 2023-03-21 Weiqiong Huang , Emily C. Hector , Joshua Cape , Chris McKennan

Genetic variants identified to date by genome-wide association studies only explain a small fraction of total heritability. Gene-by-gene interaction is one important potential source of unexplained heritability. In the first part of this…

统计方法学 · 统计学 2016-05-10 Chen Lu

Polygenic risk scores and other genomic analyses require large individual-level genotype datasets, yet strict data access restrictions impede sharing. Synthetic genotype generation offers a privacy-preserving alternative, but most existing…

The exploration of selected single nucleotide polymorphisms (SNPs) to identify genetic diversity between different sequencing population pools (Pool-seq) is a fundamental task in genetic research. As underlying sequence reads and their…

基因组学 · 定量生物学 2021-01-05 Julia Siekiera , Stefan Kramer

Self-supervised pre-training methods have brought remarkable breakthroughs in the understanding of text, image, and speech. Recent developments in genomics has also adopted these pre-training methods for genome understanding. However, they…

机器学习 · 计算机科学 2022-04-15 Samuel Cahyawijaya , Tiezheng Yu , Zihan Liu , Tiffany T. W. Mak , Xiaopu Zhou , Nancy Y. Ip , Pascale Fung

Motivation: Recent advances in technology for brain imaging and high-throughput genotyping have motivated studies examining the influence of genetic variation on brain structure. Wang et al. (Bioinformatics, 2012) have developed an approach…

统计方法学 · 统计学 2016-10-18 Keelin Greenlaw , Elena Szefer , Jinko Graham , Mary Lesperance , Farouk S. Nathoo

We present a novel coupled two-way clustering approach to gene microarray data analysis. The main idea is to identify subsets of the genes and samples, such that when one of these is used to cluster the other, stable and significant…

生物物理 · 物理学 2009-11-06 G. Getz , E. Levine , E. Domany

Transcriptome-wide association studies (TWAS) are powerful tools for identifying gene-level associations by integrating genome-wide association studies and gene expression data. However, most TWAS methods focus on linear associations…

统计方法学 · 统计学 2024-12-10 Tianying Wang , Iuliana Ionita-Laza , Ying Wei

The paramount importance of replicating associations is well recognized in the genome-wide associaton (GWA) research community, yet methods for assessing replicability of associations are scarce. Published GWA studies often combine…

统计方法学 · 统计学 2014-04-30 Ruth Heller , Daniel Yekutieli

One way of investigating how genes affect human traits would be with a genome-wide association study (GWAS). Genetic markers, known as single-nucleotide polymorphism (SNP), are used in GWAS. This raises privacy and security concerns as…

应用统计 · 统计学 2019-08-02 Jun Jie Sim , Fook Mun Chan , Shibin Chen , Benjamin Hong Meng Tan , Khin Mi Mi Aung

Gene/pathway-based methods are drawing significant attention due to their usefulness in detecting rare and common variants that affect disease susceptibility. The biological mechanism of drug responses indicates that a gene-based analysis…

应用统计 · 统计学 2014-08-04 Jung-Ying Tzeng , Wenbin Lu , Fang-Chi Hsu