MPLasso: Inferring microbial association networks using prior microbial knowledge.

Due to the recent advances in high-throughput sequencing technologies, it becomes possible to directly analyze microbial communities in human body and environment. To understand how microbial communities adapt, develop, and interact with the human body and the surrounding environment, one of the fun...

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Main Authors: Chieh Lo, Radu Marculescu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-12-01
Series:PLoS Computational Biology
Online Access:http://europepmc.org/articles/PMC5760079?pdf=render
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author Chieh Lo
Radu Marculescu
author_facet Chieh Lo
Radu Marculescu
author_sort Chieh Lo
collection DOAJ
description Due to the recent advances in high-throughput sequencing technologies, it becomes possible to directly analyze microbial communities in human body and environment. To understand how microbial communities adapt, develop, and interact with the human body and the surrounding environment, one of the fundamental challenges is to infer the interactions among different microbes. However, due to the compositional and high-dimensional nature of microbial data, statistical inference cannot offer reliable results. Consequently, new approaches that can accurately and robustly estimate the associations (putative interactions) among microbes are needed to analyze such compositional and high-dimensional data. We propose a novel framework called Microbial Prior Lasso (MPLasso) which integrates graph learning algorithm with microbial co-occurrences and associations obtained from scientific literature by using automated text mining. We show that MPLasso outperforms existing models in terms of accuracy, microbial network recovery rate, and reproducibility. Furthermore, the association networks we obtain from the Human Microbiome Project datasets show credible results when compared against laboratory data.
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spelling doaj.art-ed4e159eae3e496f8a352c7975306eb42022-12-22T01:35:31ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582017-12-011312e100591510.1371/journal.pcbi.1005915MPLasso: Inferring microbial association networks using prior microbial knowledge.Chieh LoRadu MarculescuDue to the recent advances in high-throughput sequencing technologies, it becomes possible to directly analyze microbial communities in human body and environment. To understand how microbial communities adapt, develop, and interact with the human body and the surrounding environment, one of the fundamental challenges is to infer the interactions among different microbes. However, due to the compositional and high-dimensional nature of microbial data, statistical inference cannot offer reliable results. Consequently, new approaches that can accurately and robustly estimate the associations (putative interactions) among microbes are needed to analyze such compositional and high-dimensional data. We propose a novel framework called Microbial Prior Lasso (MPLasso) which integrates graph learning algorithm with microbial co-occurrences and associations obtained from scientific literature by using automated text mining. We show that MPLasso outperforms existing models in terms of accuracy, microbial network recovery rate, and reproducibility. Furthermore, the association networks we obtain from the Human Microbiome Project datasets show credible results when compared against laboratory data.http://europepmc.org/articles/PMC5760079?pdf=render
spellingShingle Chieh Lo
Radu Marculescu
MPLasso: Inferring microbial association networks using prior microbial knowledge.
PLoS Computational Biology
title MPLasso: Inferring microbial association networks using prior microbial knowledge.
title_full MPLasso: Inferring microbial association networks using prior microbial knowledge.
title_fullStr MPLasso: Inferring microbial association networks using prior microbial knowledge.
title_full_unstemmed MPLasso: Inferring microbial association networks using prior microbial knowledge.
title_short MPLasso: Inferring microbial association networks using prior microbial knowledge.
title_sort mplasso inferring microbial association networks using prior microbial knowledge
url http://europepmc.org/articles/PMC5760079?pdf=render
work_keys_str_mv AT chiehlo mplassoinferringmicrobialassociationnetworksusingpriormicrobialknowledge
AT radumarculescu mplassoinferringmicrobialassociationnetworksusingpriormicrobialknowledge