2012
DOI: 10.1186/1471-2105-13-54
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Mining biological information from 3D short time-series gene expression data: the OPTricluster algorithm

Abstract: BackgroundNowadays, it is possible to collect expression levels of a set of genes from a set of biological samples during a series of time points. Such data have three dimensions: gene-sample-time (GST). Thus they are called 3D microarray gene expression data. To take advantage of the 3D data collected, and to fully understand the biological knowledge hidden in the GST data, novel subspace clustering algorithms have to be developed to effectively address the biological problem in the corresponding space.Result… Show more

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Cited by 33 publications
(36 citation statements)
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“…The Order Preserving Triclustering Algorithm (OPTricluster) [27] was used to model the three dimensional features in the dataset. For example, in the dataset GSE23889, the three dimensions are G × S × T, where G  =  {g 1 , g 2 , …, g n } is the set of n probe sets on the microarray, S = {wM , wN , sM , sN} the set of l (4) wheat genotypes and T = {0, 2, 14, 21, 35, 42, 56, 70} the m (8) time points.…”
Section: Methodsmentioning
confidence: 99%
“…The Order Preserving Triclustering Algorithm (OPTricluster) [27] was used to model the three dimensional features in the dataset. For example, in the dataset GSE23889, the three dimensions are G × S × T, where G  =  {g 1 , g 2 , …, g n } is the set of n probe sets on the microarray, S = {wM , wN , sM , sN} the set of l (4) wheat genotypes and T = {0, 2, 14, 21, 35, 42, 56, 70} the m (8) time points.…”
Section: Methodsmentioning
confidence: 99%
“…We define a coherent tricluster as a set of genes which exhibits either similar numeric values for the times and conditions (coherent values [21]) or similar behaviors regardless of the exact numeric values: correlated positive and negative changes in the expression values (coherent behavior [21]). Both types of coherent clusters may contain information useful to identify useful phenotypes, potential genes related to these phenotypes and their regulation relations [36].…”
Section: Introductionmentioning
confidence: 99%
“…While biclustering is defined over two dimensions, there are some algorithms developed for three‐dimensional time‐series gene expression data, which mine clusters along the gene‐sample‐time or gene‐sample‐region dimensions 13,14. Zhao and Zaki13 proposed an algorithm named TriCluster for mining clusters in three‐dimensional microarray data, which is the first three‐way clustering algorithm defined over gene‐sample‐time microarray data.…”
Section: Introductionmentioning
confidence: 99%
“…Zhao and Zaki13 proposed an algorithm named TriCluster for mining clusters in three‐dimensional microarray data, which is the first three‐way clustering algorithm defined over gene‐sample‐time microarray data. In another study, Tchagang et al 14. developed a subspace clustering algorithm named Order Preserving Triclustering for 3D time series data.…”
Section: Introductionmentioning
confidence: 99%