2014
DOI: 10.1371/journal.pone.0092600
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IPCA-CMI: An Algorithm for Inferring Gene Regulatory Networks based on a Combination of PCA-CMI and MIT Score

Abstract: Inferring gene regulatory networks (GRNs) is a major issue in systems biology, which explicitly characterizes regulatory processes in the cell. The Path Consistency Algorithm based on Conditional Mutual Information (PCA-CMI) is a well-known method in this field. In this study, we introduce a new algorithm (IPCA-CMI) and apply it to a number of gene expression data sets in order to evaluate the accuracy of the algorithm to infer GRNs. The IPCA-CMI can be categorized as a hybrid method, using the PCA-CMI and Hil… Show more

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Cited by 23 publications
(16 citation statements)
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References 39 publications
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“…This network includes 9 genes and 9 samples. The second network is Dream100 from Dream3 challenge with 100 genes and 100 samples which consists of 166 edges in real network [26].…”
Section: Resultsmentioning
confidence: 99%
“…This network includes 9 genes and 9 samples. The second network is Dream100 from Dream3 challenge with 100 genes and 100 samples which consists of 166 edges in real network [26].…”
Section: Resultsmentioning
confidence: 99%
“…For discrete variables X and Y , MI is defined as [ 31 , 38 , 70 , 71 ]: where p ( x , y ) is the joint probability distribution of X and Y , and p ( x ) and p ( y ) are the marginal probability distributions of X and Y , respectively; H ( X ) and H ( Y ) are the entropies of X and Y , respectively; and H ( X , Y ) is the joint entropy of X and Y .…”
Section: Methodsmentioning
confidence: 99%
“…In addition, the casual relationship between variables can be detected by BNs. Three well‐known methods to learn the structure of BNs are constraint‐based, score‐based searching, and hybrid approaches . For constraint‐based method, the dependency among nodes in networks are assigned based on the conditional independency tests.…”
Section: Introductionmentioning
confidence: 99%
“…Three well-known methods to learn the structure of BNs are constraint-based, [15][16][17] score-based searching, [18][19][20][21][22] and hybrid approaches. [23][24][25] For constraint-based method, the dependency among nodes in networks are assigned based on the conditional independency tests. The score-based searching method contains two parts: assigning the scoring function and applying search procedure.…”
Section: Introductionmentioning
confidence: 99%