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We consider statistical inference in high-dimensional regression problems under affine constraints on the parameter space. The theoretical study of this is motivated by the study of genetic determinants of diseases, such as diabetes, using…

The two-phase sampling design is a cost-efficient way of collecting expensive covariate information on a judiciously selected subsample. It is natural to apply such a strategy for collecting genetic data in a subsample enriched for exposure…

Applications · Statistics 2013-05-27 Jaeil Ahn , Bhramar Mukherjee , Stephen B. Gruber , Malay Ghosh

Transcription of genes is the focus of most forms of regulation of gene expression. Even though careful biochemical experimentation has revealed the molecular mechanisms of transcription initiation for a number of different promoters in…

Molecular Networks · Quantitative Biology 2018-10-17 Sandeep Choubey , Jane Kondev , Alvaro Sanchez

Deep generative models open new avenues for simulating realistic genomic data while preserving privacy and addressing data accessibility constraints. While previous studies have primarily focused on generating gene expression or haplotype…

Genomics · Quantitative Biology 2025-08-14 Sihan Xie , Thierry Tribout , Didier Boichard , Blaise Hanczar , Julien Chiquet , Eric Barrey

In genomics studies, the investigation of the gene relationship often brings important biological insights. Currently, the large heterogeneous datasets impose new challenges for statisticians because gene relationships are often local. They…

Methodology · Statistics 2022-03-07 Jinjin Tian , Jing Lei , Kathryn Roeder

As high-throughput sequencing has become common practice, the cost of sequencing large amounts of genetic data has been drastically reduced, leading to much larger data sets for analysis. One important task is to identify biological…

Methodology · Statistics 2014-10-14 Ciaran Evans , Johanna Hardin , Mark Huber , Daniel Stoebel , Garrett Wong

We describe the time evolution of gene expression levels by using a time translational matrix to predict future expression levels of genes based on their expression levels at some initial time. We deduce the time translational matrix for…

Statistical Mechanics · Physics 2009-11-07 Neal S. Holter , Amos Maritan , Marek Cieplak , Nina V. Fedoroff , Jayanth R. Banavar

Mapping gene expression as a quantitative trait using whole genome-sequencing and transcriptome analysis allows to discover the functional consequences of genetic variation. We developed a novel method and ultra-fast software Findr for…

Genomics · Quantitative Biology 2017-08-23 Lingfei Wang , Tom Michoel

In statistical network analysis it is common to observe so called interaction data. Such data is characterized by actors forming the vertices and interacting along edges of the network, where edges are randomly formed and dissolved over the…

Methodology · Statistics 2024-07-15 Alexander Kreiss , Enno Mammen , Wolfgang Polonik

Research on the localization of the genetic basis associated with diseases or traits has been widely conducted in the last a few decades. Scan methods have been developed for region-based analysis in whole-genome association studies,…

Methodology · Statistics 2024-10-31 Wei Zhang , Fan Wang , Fang Yao

Due to the availability of large molecular data-sets, covariance models are increasingly used to describe the structure of genetic variation as an alternative to more heavily parametrised biological models. We focus here on a class of…

Applications · Statistics 2013-12-16 Gilles Guillot , René Schilling , Emilio Porcu , Moreno Bevilacqua

Graphical models describe associations between variables through the notion of conditional independence. Gaussian graphical models are a widely used class of such models where the relationships are formalized by non-null entries of the…

Methodology · Statistics 2023-08-08 Sagnik Bhadury , Riten Mitra , Jeremy T. Gaskins

Here we propose a new approach to modeling gene expression based on the theory of random dynamical systems (RDS) that provides a general coupling prescription between the nodes of any given regulatory network given the dynamics of each node…

Molecular Networks · Quantitative Biology 2016-07-11 Fernando Antoneli , Renata C. Ferreira , Marcelo R. S. Briones

Understanding how genetic variants influence cellular-level processes is an important step towards understanding how they influence important organismal-level traits, or "phenotypes", including human disease susceptibility. To this end…

Methodology · Statistics 2013-07-30 Heejung Shim , Matthew Stephens

In genome-wide prediction, independence of marker allele substitution effects is typically assumed; however, since early stages of this technology it has been known that nature points to correlated effects. In statistics, graphical models…

Quantitative Methods · Quantitative Biology 2017-09-21 Carlos Alberto Martínez , Kshitij Khare , Syed Rahman , Mauricio A. Elzo

Substantial progress has been made in identifying single genetic variants predisposing to common complex diseases. Nonetheless, the genetic etiology of human diseases remains largely unknown. Human complex diseases are likely influenced by…

Methodology · Statistics 2014-05-27 Zihuai He , Min Zhang , Xiaowei Zhan , Qing Lu

Due to recent breakthroughs in state-of-the-art DNA sequencing technology, genomics data sets have become ubiquitous. The emergence of large-scale data sets provides great opportunities for better understanding of genomics, especially gene…

Genomics · Quantitative Biology 2020-12-18 Wei Cheng , Ghulam Murtaza , Aaron Wang

Simultaneous analysis of gene expression data and genetic variants is highly of interest, especially when the number of gene expressions and genetic variants are both greater than the sample size. Association of both causal genes and…

Methodology · Statistics 2021-10-07 Morteza Amini

Gene covariation networks are commonly used to study biological processes. The inference of gene covariation networks from observational data can be challenging, especially considering the large number of players involved and the small…

Molecular Networks · Quantitative Biology 2019-04-17 Anatoly Yambartsev , Michael Perlin , Yevgeniy Kovchegov , Natalia Shulzhenko , Karina L. Mine , Xiaoxi Dong , Andrey Morgun

Correlation and spectral analysis represent the standard tools to study interdependence in statistical data. However, for the stochastic processes with heavy-tailed distributions such that the variance diverges, these tools are inadequate.…

Statistical Mechanics · Physics 2015-06-22 Agnieszka Wyłomańska , Aleksei Chechkin , Janusz Gajda , Igor M. Sokolov