A matrix rank based concordance index for evaluating and detecting conditional specific co-expressed gene modules.
A matrix rank based concordance index for evaluating and detecting conditional specific co-expressed gene modules.
复制标题
基于矩阵等级的一致性指数,用于评估和检测条件特定的共表达基因模块。
DOI:
10.1186/s12864-016-2912-y
复制
发表时间:
2016-08-22
期刊:
影响因子:
4.4
通讯作者:
Huang K
中科院分区:
文献类型:
--
作者:
Han Z;Zhang J;Sun G;Liu G;Huang K
Gene co-expression network analysis (GCNA) is widely adopted in bioinformatics and biomedical research with applications such as gene function prediction, protein-protein interaction inference, disease markers identification, and copy number variance discovery. Currently there is a lack of rigorous analysis on the mathematical condition for which the co-expressed gene module should satisfy. In this paper, we present a linear algebraic based Centralized Concordance Index (CCI) for evaluating the concordance of co-expressed gene modules from gene co-expression network analysis. The CCI can be used to evaluate the performance for co-expression network analysis algorithms as well as for detecting condition specific co-expression modules. We applied CCI in detecting lung tumor specific gene modules. Simulation showed that CCI is a robust indicator for evaluating the concordance of a group of co-expressed genes. The application to lung cancer datasets revealed interesting potential tumor specific genetic alterations including CNVs and even hints for gene-fusion. Deeper analysis required for understanding the molecular mechanisms of all such condition specific co-expression relationships. The CCI can be used to evaluate the performance for co-expression network analysis algorithms as well as for detecting condition specific co-expression modules. It is shown to be more robust to outliers and interfering modules than density based on Pearson correlation coefficients.
登录
查看更多内容
影响因子:
3
作者:
Langfelder P;Horvath S
通讯作者:
Horvath S
影响因子:
3
作者:
Xiang Y;Zhang CQ;Huang K
通讯作者:
Huang K
影响因子:
5.8
作者:
Lai, YL;Wu, BL;Zhao, HY
通讯作者:
Zhao, HY
DOI:
10.1073/pnas.252466999
发表时间:
2002-12-24
影响因子:
11.1
作者:
Li, KC
通讯作者:
Li, KC
影响因子:
6.4
作者:
Sanchez-Palencia, Abel;Gomez-Morales, Mercedes;Esther Farez-Vidal, Ma
通讯作者:
Esther Farez-Vidal, Ma