Different aspects of a clinical sample can be revealed by multiple types of omics data. Integrated analysis of multi-omics data provides a comprehensive view of patients, which has the potential to facilitate more accurate clinical decision making. However, omics data are normally high dimensional with large number of molecular features and relatively small number of available samples with clinical labels. The "dimensionality curse" makes it challenging to train a machine learning model using high dimensional omics data like DNA methylation and gene expression profiles. Here we propose an end-to-end deep learning model called OmiVAE to extract low dimensional features and classify samples from multi-omics data. OmiVAE combines the basic structure of variational autoencoders with a classification network to achieve task-oriented feature extraction and multi-class classification. The training procedure of OmiVAE is comprised of an unsupervised phase without the classifier and a supervised phase with the classifier. During the unsupervised phase, a hierarchical cluster structure of samples can be automatically formed without the need for labels. And in the supervised phase, OmiVAE achieved an average classification accuracy of 97.49% after 10-fold cross-validation among 33 tumour types and normal samples, which shows better performance than other existing methods. The OmiVAE model learned from multi-omics data outperformed that using only one type of omics data, which indicates that the complementary information from different omics datatypes provides useful insights for biomedical tasks like cancer classification.
Transforming Multi-Omics Integration with GANs: Applications in Alzheimer's and Cancer
Tulane Center for Biomedical Informatics(Tulane 生物医学信息学中心);Genomics, Deming Department of Medicine, Tulane University(生物医学基因组学部, Tulane 大学医学部);Department of Computer Science, Tulane University(计算机科学系, Tulane 大学);Ochsner Center for Outcomes Research, Ochsner Research(Ochsner 研究中心, Ochsner 研究)
Imperial College London(帝国理工学院);University College London(伦敦大学学院);Hong Kong Baptist University(香港浸会大学)
The lack of explainability is one of the most prominent disadvantages of deep learning applications in omics. This "black box" problem can undermine the credibility and limit the practical implementation of biomedical deep learning models. Here we present XOmiVAE, a variational autoencoder (VAE) based interpretable deep learning model for cancer classification using high-dimensional omics data. XOmiVAE is capable of revealing the contribution of each gene and latent dimension for each classification prediction, and the correlation between each gene and each latent dimension. It is also demonst…
Massachusetts Institute of Technology, Computational and Systems Biology Program(麻省理工学院计算与系统生物学计划);Broad Institute of MIT and Harvard(MIT和哈佛大学博德研究所);Massachusetts Institute of Technology, Department of Biological Engineering(麻省理工学院生物工程系)
Osaka University(大阪大学);Nara Institute of Science and Technology(奈良先端科学技术大学院大学);Yunnan University(云南大学)
Defining and separating cancer subtypes is essential for facilitating personalized therapy modality and prognosis of patients. The definition of subtypes has been constantly recalibrated as a result of our deepened understanding. During this recalibration, researchers often rely on clustering of cancer data to provide an intuitive visual reference that could reveal the intrinsic characteristics of subtypes. The data being clustered are often omics data such as transcriptomics that have strong correlations to the underlying biological mechanism. However, while existing studies have shown promis…
Mohamed Bin Zayed University of Artificial Intelligence(穆罕默德·本·扎耶德人工智能大学)
We have gained access to vast amounts of multi-omics data thanks to Next Generation Sequencing. However, it is challenging to analyse this data due to its high dimensionality and much of it not being annotated. Lack of annotated data is a significant problem in machine learning, and Self-Supervised Learning (SSL) methods are typically used to deal with limited labelled data. However, there is a lack of studies that use SSL methods to exploit inter-omics relationships on unlabelled multi-omics data. In this work, we develop a novel and efficient pre-training paradigm that consists of various SS…
Cancer survival prediction is important for developing personalized treatments and inducing disease-causing mechanisms. Multi-omics data integration is attracting widespread interest in cancer research for providing information for understanding cancer progression at multiple genetic levels. Many works, however, are limited because of the high dimensionality and heterogeneity of multi-omics data. In this paper, we propose a novel method to integrate multi-omics data for cancer survival prediction, called Stacked AutoEncoder-based Survival Prediction Neural Network (SAEsurv-net). In the cancer …
MLOmics: Cancer Multi-Omics Database for Machine Learning
Bioinformatics Center, Institute for Chemical Research, Kyoto University(京都大学生物信息学中心、化学研究所);SANKEN, Osaka University(大阪大学SANKEN);IRCN, The University of Tokyo(东京大学IRCN);Institute for Quantitative Biosciences, The University of Tokyo(东京大学定量生物科学研究所);Department of Computer Science, University of Illinois Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校计算机科学系);Carle Illinois College of Medicine, University of Illinois Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校Carle医学院)
Multi-Omics Analysis for Cancer Subtype Inference via Unrolling Graph Smoothness Priors
Zhejiang Key Laboratory of Accessible Perception and Intelligent Systems, College of Computer Science and Technology, Zhejiang University(浙江可感知智能系统重点实验室,计算机科学与技术学院,浙江大学)
Washington University School of Medicine, Washington University in St. Louis(圣路易斯华盛顿大学医学院);Dalian University of Technology(大连理工大学)
Drug resistance is still a major challenge in cancer therapy. Drug combination is expected to overcome drug resistance. However, the number of possible drug combinations is enormous, and thus it is infeasible to experimentally screen all effective drug combinations considering the limited resources. Therefore, computational models to predict and prioritize effective drug combinations is important for combinatory therapy discovery in cancer. In this study, we proposed a novel deep learning model, AuDNNsynergy, to prediction drug combinations by integrating multi-omics data and chemical structur…
MODIS: Multi-Omics Data Integration for Small and unpaired datasets
Aix Marseille Univ(阿ix马赛大学);INSERM(国家健康与医学研究中心);MMG(马赛医学中心);Aix Marseille Univ & Ecole Centrale de Marseille(阿ix马赛大学及马赛中央理工大学);CNRS(法国国家科学研究中心);LIS(丽兹研究所)
Identifying multi-omics interactions for lung cancer drug targets discovery using Kernel Machine Regression
Department of Information and Communication Technology, Mawlana Bhashani Science and Technology University, Santosh, Tangail, 1902, Dhaka, Bangladesh(信息与通信技术系,穆拉纳巴沙尼科学与技术大学);Department of Computer Science, Tulane University, New Orleans, LA, USA(计算机科学系,杜兰大学);Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 138632, Singapore(生物信息学研究所(BII),科技研究局(A*STAR));Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University, New Orleans, LA 70112, USA(杜兰大学生物医学信息学与基因组学中心,医学部);Ochsner Center for Outcomes Research, Ochsner Research, New Orleans, LA 70121, USA(Ochsner研究中心,Ochsner研究)
Several modern applications require the integration of multiple large data matrices that have shared rows and/or columns. For example, cancer studies that integrate multiple omics platforms across multiple types of cancer, pan-omics pan-cancer analysis, have extended our knowledge of molecular heterogenity beyond what was observed in single tumor and single platform studies. However, these studies have been limited by available statistical methodology. We propose a flexible approach to the simultaneous factorization and decomposition of variation across such bidimensionally linked matrices, BI…
Non-Redundant Combination of Hand-Crafted and Deep Learning Radiomics: Application to the Early Detection of Pancreatic Cancer
LTCI, Télécom Paris, Institut Polytechnique de Paris(巴黎理工学院巴黎电信学院LTCI实验室);Guerbet Research(盖尔贝特研究中心);Department of Radiology, Hospital of Annecy-Genevois, Université de Paris(巴黎大学阿讷西-热内瓦医院放射科);Sorbonne Université, CNRS, LIP6(索邦大学、法国国家科学研究中心、LIP6实验室)
CMGL: Confidence-guided Multi-omics Graph Learning for Cancer Subtype Classification
College of Computer Science, Sichuan University(四川大学计算机学院);Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences(中国科学院新疆物理化学研究所);College of Mathematics, Sichuan University(四川大学数学学院);School of Artificial Intelligence and Data Science, University of International Business and Economics(国际经贸大学人工智能与数据科学学院)
East China University of Science and Technology(华东理工大学);Jacobs Technion-Cornell Institute(雅各布布·泰克尼翁-康奈尔研究所);Cornell Tech(康奈尔科技校区);Cornell University(康奈尔大学)
Motivation: Cancer is heterogeneous, affecting the precise approach to personalized treatment. Accurate subtyping can lead to better survival rates for cancer patients. High-throughput technologies provide multiple omics data for cancer subtyping. However, precise cancer subtyping remains challenging due to the large amount and high dimensionality of omics data. Results: This study proposed Subtype-Former, a deep learning method based on MLP and Transformer Block, to extract the low-dimensional representation of the multi-omics data. K-means and Consensus Clustering are also used to achieve ac…
DEDUCE: Multi-head attention decoupled contrastive learning to discover cancer subtypes based on multi-omics data
College of Computer Science and Electronic Engineering, Hunan University(湖南大学计算机与通信工程学院);The Second Xiangya Hospital, Central South University(中南大学湘雅二医院);National Supercomputing Center in Zhengzhou, Zhengzhou University(郑州大学郑州国家超级计算中心)
提出基于对称多头注意力编码器和解耦对比学习的 DEDUCE 模型,用于多组学癌症数据的无监督特征学习与聚类,实验显示其优于10个深度学习模型及现有方法,并识别出6种 AML 亚型。
Interpretable Graph Kolmogorov-Arnold Networks for Multi-Cancer Classification and Biomarker Identification using Multi-Omics Data
University of Idaho, Department of Computer Science(爱达荷大学计算机科学系);Jouf University, College of Computer and Information Sciences, Department of Computer Science(朱夫大学计算机与信息科学学院计算机科学系);University of Gezira, Faculty of Mathematical and Computer Sciences(杰兹拉大学数学与计算机科学学院);Bentonville High School(伯恩斯维尔高中);University of KwaZulu-Natal, School of Mathematics, Statistics and Computer Science(夸祖鲁-纳塔尔大学数学、统计与计算机科学学院)
Heterogeneous graph attention network improves cancer multiomics integration
School of Computer Science, The University of Sheffield(谢菲尔德大学计算机学院);Centre for Machine Intelligence, The University of Sheffield(谢菲尔德大学机器智能中心);School of Biosciences, The University of Sheffield(谢菲尔德大学生物科学学院)
Biologically Informed Deep Neural Networks for Multi-Omic Integration, Pathway Activity Inference and Risk Stratification in Cancer
King’s College London(伦敦国王学院);Institute for Infocomm Research, Agency for Science, Technology and Research (A*STAR)(科技研究局信息与通信研究所);Shenzhen University(深圳大学);University of Manchester(曼彻斯特大学)
PACS: Prediction and analysis of cancer subtypes from multi-omics data based on a multi-head attention mechanism model
College of Computer Science and Electronic Engineering(计算机科学与电子工程学院);Third Xiangya Hospital(湘雅三医院);Hunan University(湖南大学);Central South University(中南大学)
Cambridge Cancer Genomics(剑桥癌症基因组学);University of Edinburgh(爱丁堡大学);University of Cambridge(剑桥大学)
The potential benefits of applying machine learning methods to -omics data are becoming increasingly apparent, especially in clinical settings. However, the unique characteristics of these data are not always well suited to machine learning techniques. These data are often generated across different technologies in different labs, and frequently with high dimensionality. In this paper we present a framework for combining -omics data sets, and for handling high dimensional data, making -omics research more accessible to machine learning applications. We demonstrate the success of this framework…
We propose the molecular omics network (MOOMIN) a multimodal graph neural network used by AstraZeneca oncologists to predict the synergy of drug combinations for cancer treatment. Our model learns drug representations at multiple scales based on a drug-protein interaction network and metadata. Structural properties of compounds and proteins are encoded to create vertex features for a message-passing scheme that operates on the bipartite interaction graph. Propagated messages form multi-resolution drug representations which we utilized to create drug pair descriptors. By conditioning the drug c…
TF-DWGNet: A Directed Weighted Graph Neural Network with Tensor Fusion for Multi-Omics Cancer Subtype Classification
Mathematics and Statistical Science University of Idaho(数学与统计科学大学 Idaho 大学);Computer Science and Engineering Mississippi State University(计算机科学与工程密苏里州立大学)
Optimizing Prognostic Biomarker Discovery in Pancreatic Cancer Through Hybrid Ensemble Feature Selection and Multi-Omics Data
Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway(癌症遗传学系,癌症研究所,奥斯陆大学医院,奥斯陆,挪威);Oslo Centre for Biostatistics and Epidemiology (OCBE), Department of Biostatistics, University of Oslo, Oslo, Norway(奥斯陆生物统计与流行病学中心(OCBE),生物统计学系,奥斯陆大学,奥斯陆,挪威);Department of Informatics, University of Oslo, Oslo, Norway(信息学系,奥斯陆大学,奥斯陆,挪威);Department of Statistics, Ludwig Maximilian University of Munich, Munich, Germany(统计学系,慕尼黑路德维希-马克西米利安大学,慕尼黑,德国);Munich Center for Machine Learning (MCML)(慕尼黑机器学习中心(MCML))
Mohamed Bin Zayed University of Artificial Intelligence(穆罕默德·本·扎耶德人工智能大学)
For personalized medicines, very crucial intrinsic information is present in high dimensional omics data which is difficult to capture due to the large number of molecular features and small number of available samples. Different types of omics data show various aspects of samples. Integration and analysis of multi-omics data give us a broad view of tumours, which can improve clinical decision making. Omics data, mainly DNA methylation and gene expression profiles are usually high dimensional data with a lot of molecular features. In recent years, variational autoencoders (VAE) have been exten…
Machine learning-based multimodal prognostic models integrating pathology images and high-throughput omic data for overall survival prediction in cancer: a systematic review
Leeds Teaching Hospitals NHS Trust(利兹教学医院国民医疗服务信托);University of Leeds(利兹大学);Linköping University(林雪平大学)
Integrate Any Omics: Towards genome-wide data integration for patient stratification
Peter Munk Cardiac Centre, University Health Network(彼得·蒙克心脏中心,大学健康网络);Vector Institute for Artificial Intelligence(向量人工智能研究所);Department of Computer Science, University of Toronto(多伦多大学计算机科学系);Department of Molecular Genetics, University of Toronto(多伦多大学分子遗传学系);Princess Margaret Cancer Centre, University Health Network(玛格丽特公主癌症中心,大学健康网络);Department of Medical Biophysics, University of Toronto(多伦多大学医学生物物理学系);Genetics and Genome Biology, the Hospital for Sick Children(病童医院遗传学与基因组生物学)
Multi-omic data provides multiple views of the same patients. Integrative analysis of multi-omic data is crucial to elucidate the molecular underpinning of disease etiology. However, multi-omic data has the "big p, small N" problem (the number of features is large, but the number of samples is small), it is challenging to train a complicated machine learning model from the multi-omic data alone and make it generalize well. Here we propose a framework termed Multi-view Factorization AutoEncoder with network constraints to integrate multi-omic data with domain knowledge (biological interactions …
King’s College London(伦敦国王学院);Institute for Infocomm Research, A*STAR(新加坡科技研究局资讯通信研究院)
Cancer is a complex disease with significant social and economic impact. Advancements in high-throughput molecular assays and the reduced cost for performing high-quality multi-omics measurements have fuelled insights through machine learning . Previous studies have shown promise on using multiple omic layers to predict survival and stratify cancer patients. In this paper, we developed a Supervised Autoencoder (SAE) model for survival-based multi-omic integration which improves upon previous work, and report a Concrete Supervised Autoencoder model (CSAE), which uses feature selection to jointl…
PathMoG: A Pathway-Centric Modular Graph Neural Network for Multi-Omics Survival Prediction
Cuiying Honors College(翠英荣誉学院);School of Mathematics and Statistics(数学与统计学学院);Shanghai Innovation Institute(上海创新研究院);Department of Computer Science(计算机科学系)
City University of New York(纽约城市大学);Hunter College, City University of New York(纽约城市大学亨特学院)
An unsolved fundamental problem in biology and ecology is to predict observable traits (phenotypes) from a new genetic constitution (genotype) of an organism under environmental perturbations (e.g., drug treatment). The emergence of multiple omics data provides new opportunities but imposes great challenges in the predictive modeling of genotype-phenotype associations. Firstly, the high-dimensionality of genomics data and the lack of labeled data often make the existing supervised learning techniques less successful. Secondly, it is a challenging task to integrate heterogeneous omics data from…
The University of Sheffield(谢菲尔德大学);Shahid Beheshti University(沙希德·贝赫什提大学)
With advanced imaging, sequencing, and profiling technologies, multiple omics data become increasingly available and hold promises for many healthcare applications such as cancer diagnosis and treatment. Multimodal learning for integrative multi-omics analysis can help researchers and practitioners gain deep insights into human diseases and improve clinical decisions. However, several challenges are hindering the development in this area, including the availability of easily accessible open-source tools. This survey aims to provide an up-to-date overview of the data challenges, fusion approach…
Multi-omics data, that is, datasets containing different types of high-dimensional molecular variables (often in addition to classical clinical variables), are increasingly generated for the investigation of various diseases. Nevertheless, questions remain regarding the usefulness of multi-omics data for the prediction of disease outcomes such as survival time. It is also unclear which methods are most appropriate to derive such prediction models. We aim to give some answers to these questions by means of a large-scale benchmark study using real data. Different prediction methods from machine …
Lunenfeld-Tanenbaum Research Institute(卢嫩菲尔德-坦南鲍姆研究所);York University(约克大学)
Recent advances in biological research have seen the emergence of high-throughput technologies with numerous applications that allow the study of biological mechanisms at an unprecedented depth and scale. A large amount of genomic data is now distributed through consortia like The Cancer Genome Atlas (TCGA), where specific types of biological information on specific type of tissue or cell are available. In cancer research, the challenge is now to perform integrative analyses of high-dimensional multi-omic data with the goal to better understand genomic processes that correlate with cancer outc…
Quantum enhanced stratification of Breast Cancer: exploring quantum expressivity for real omics data
National Research Council of Italy (CNR), Institute of Informatics(意大利国家研究理事会(CNR)信息学院);Computational Biomedicine Unit, Department of Medical Sciences, University of Turin(都灵大学医学科学系计算生物医学单元);University of Siena(锡耶纳大学);Institute for High Performance Computing(高性能计算研究所);Networking (ICAR), National Research Council of Italy (CNR)(网络(ICAR),意大利国家研究理事会(CNR))
UnPaSt: unsupervised patient stratification by biclustering of omics data
University of Hamburg(汉堡大学);Technical University of Munich(慕尼黑工业大学);Netherlands Cancer Institute(荷兰癌症研究所);ACMetric;University of Campinas(坎皮纳斯大学);University of British Columbia(不列颠哥伦比亚大学);Friedrich-Alexander-Universität Erlangen-Nürnberg(弗里德里希-亚历山大大学埃尔兰根-纽伦堡);Vrije Universiteit Amsterdam(阿姆斯特丹自由大学);Altius Institute for Biomedical Sciences(Altius生物医学科学研究所);University of Liège(列日大学);Aarhus University(奥胡斯大学);Aarhus University Hospital(奥胡斯大学医院);University Medical Center Hamburg-Eppendorf(汉堡-埃彭多夫大学医学中心);Simon Fraser University(西蒙弗雷泽大学);Vancouver Prostate Centre(温哥华前列腺中心);Leibniz Institute of Virology(莱布尼茨病毒学研究所);University of Southern Denmark(南丹麦大学)