Kossenkov Andrew V, Ochs Michael F
The Wistar Institute, 3601 Spruce Street, Philadelphia, PA 19104, USA.
Int J Data Min Bioinform. 2010;4(1):72-90. doi: 10.1504/ijdmb.2010.030968.
Numerous methods have been applied to microarray data to group genes into clusters that show similar expression patterns. These methods assign each gene to a single group, which does not reflect the widely held view among biologists that most, if not all, genes in eukaryotes are involved in multiple biological processes and therefore will be multiply regulated. Here, we review several methods of matrix factorisation that identify patterns of behaviour in transcriptional response and assign genes to multiple patterns. We focus on these methods rather than traditional clustering methods applied to microarray data, which assign one gene to one cluster.
众多方法已应用于微阵列数据,以将基因分组为显示相似表达模式的簇。这些方法将每个基因分配到单个组中,这并未反映生物学家中广泛持有的观点,即真核生物中的大多数(如果不是全部)基因都参与多个生物学过程,因此会受到多种调控。在这里,我们回顾了几种矩阵分解方法,这些方法可识别转录反应中的行为模式并将基因分配到多种模式中。我们关注这些方法,而不是应用于微阵列数据的传统聚类方法,传统方法将一个基因分配到一个簇中。