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In this study we propose a deformation-based framework to jointly model the influence of aging and Alzheimer's disease (AD) on the brain morphological evolution. Our approach combines a spatio-temporal description of both processes into a…

神经元与认知 · 定量生物学 2019-05-27 Raphaël Sivera , Hervé Delingette , Marco Lorenzi , Xavier Pennec , Nicholas Ayache

Purpose: To develop an age prediction model which is interpretable and robust to demographic and technological variances in brain MRI scans. Materials and Methods: We propose a transformer-based architecture that leverages self-supervised…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Pengyu Kan , Craig Jones , Kenichi Oishi

Understanding the operation of biological and artificial networks remains a difficult and important challenge. To identify general principles, researchers are increasingly interested in surveying large collections of networks that are…

机器学习 · 统计学 2022-01-14 Alex H. Williams , Erin Kunz , Simon Kornblith , Scott W. Linderman

Partially inspired by features of computation in visual cortex, deep neural networks compute hierarchical representations of their inputs. While these networks have been highly successful in machine learning, it remains unclear to what…

神经元与认知 · 定量生物学 2019-11-20 Jianghong Shi , Eric Shea-Brown , Michael A. Buice

Affect is often expressed via non-verbal body language such as actions/gestures, which are vital indicators for human behaviors. Recent studies on recognition of fine-grained actions/gestures in monocular images have mainly focused on…

计算机视觉与模式识别 · 计算机科学 2021-01-19 Ardhendu Behera , Zachary Wharton , Morteza Ghahremani , Swagat Kumar , Nik Bessis

There has been increasing interests in learning resting-state brain functional connectivity of autism disorders using functional magnetic resonance imaging (fMRI) data. The data in a standard brain template consist of over 200,000 voxel…

统计方法学 · 统计学 2016-03-22 Jichun Xie , Jian Kang

Generalized linear mixed-effects models in the context of genome-wide association studies (GWAS) represent a formidable computational challenge: the solution of millions of correlated generalized least-squares problems, and the processing…

数学软件 · 计算机科学 2013-05-02 Diego Fabregat-Traver , Yurii Aulchenko , Paolo Bientinesi

Gene expression microarray technologies provide the simultaneous measurements of a large number of genes. Typical analyses of such data focus on the individual genes, but recent work has demonstrated that evaluating changes in expression…

应用统计 · 统计学 2010-06-29 Babak Shahbaba , Robert Tibshirani , Catherine M. Shachaf , Sylvia K. Plevritis

To understand the biology of cancer, joint analysis of multiple data modalities, including imaging and genomics, is crucial. The involved nature of gene-microenvironment interactions necessitates the use of algorithms which treat both data…

信号处理 · 电气工程与系统科学 2018-02-27 Vaishnavi Subramanian , Benjamin Chidester , Jian Ma , Minh N. Do

Depression is a common mental illness across current human society. Traditional depression assessment relying on inventories and interviews with psychologists frequently suffer from subjective diagnosis results, slow and expensive diagnosis…

神经元与认知 · 定量生物学 2025-07-01 Siyang Song , Yupeng Huo , Shiqing Tang , Jiaee Cheong , Rui Gao , Michel Valstar , Hatice Gunes

Gene expression datasets offer insights into gene regulation mechanisms, biochemical pathways, and cellular functions. Additionally, comparing gene expression profiles between disease and control patients can deepen the understanding of…

机器学习 · 计算机科学 2025-03-27 Rita T. Sousa , Heiko Paulheim

We train a neural network to predict human gene expression levels based on experimental data for rat cells. The network is trained with paired human/rat samples from the Open TG-GATES database, where paired samples were treated with the…

基因组学 · 定量生物学 2019-07-09 Peter Eastman , Vijay S. Pande

Many real-world optimization problems are not naturally homogeneous vectors but composite design objects with heterogeneous parameters: integers, real values, Booleans, categoricals, complex-valued descriptors, and embedding vectors.…

神经与进化计算 · 计算机科学 2026-05-14 Alex Bogdan

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,…

统计方法学 · 统计学 2024-10-31 Wei Zhang , Fan Wang , Fang Yao

This paper presents a novel approach for synthesizing facial affect; either in terms of the six basic expressions (i.e., anger, disgust, fear, joy, sadness and surprise), or in terms of valence (i.e., how positive or negative is an emotion)…

计算机视觉与模式识别 · 计算机科学 2019-07-18 Dimitrios Kollias , Shiyang Cheng , Evangelos Ververas , Irene Kotsia , Stefanos Zafeiriou

This study extends the use of symbolic computation in Matrix Structural Analysis (MSA) to plane (2D) trusses, building on previous work that focused on continuous beams. An open-source MATLAB program, hosted on GitHub, was developed to…

计算工程、金融与科学 · 计算机科学 2024-11-26 Vagelis Plevris , Afaq Ahmad

The estimation of covariance matrices of gene expressions has many applications in cancer systems biology. Many gene expression studies, however, are hampered by low sample size and it has therefore become popular to increase sample size by…

Accurate reconstruction of neuronal morphology is essential for classifying cell types and understanding brain connectivity. Recent advances in imaging and reconstruction techniques have greatly expanded the scale and quality of neuronal…

神经元与认知 · 定量生物学 2025-08-05 Wu Chen , Mingwei Liao , Xueyan Jia , Xiaowei Chen , Chi Xiao , Qingming Luo , Hui Gong , Anan Li

Computational modeling and simulation have become essential tools in the quest to better understand the brain's makeup and to decipher the causal interrelations of its components. The breadth of biochemical and biophysical processes and…

神经元与认知 · 定量生物学 2019-06-10 Francesco Cremonesi , Felix Schürmann