Lutter, D. and Stadlthanner, K. and Theis, Fabian J. and Lang, Elmar and Tomé, A. M. and Becker, B. and Vogt, T. (2006) Analyzing gene expression profiles with ICA. In: Ruggiero, C., (ed.) Proceedings of the Fourth IASTED International Conference on Biomedical Engineering: February 15 - 17, 2006, Innsbruck, Austria. Acta Press, Anaheim. ISBN 0-88986-576-0.
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High-throughput genome-widemeasurements of gene transcript levels have become available with the recent development of microarray technology. Intelligent and efficient mathematical and computational analysis tools are needed to read and interpret the information content buried in those large scale gene expression patterns at various levels of resolution. But the development of such methods is still in its infancy. Modern machine learning and data mining techniques based on information theory, like independent component analysis (ICA), consider gene expression patterns as a superposition of independent expression modes which are considered putative independent biological processes. We focus on two widely used ICA algorithms to blindly decompose gene expression profiles into independent component profiles representing underlying biological processes. These exploratory methods will be capable of detecting similarity, locally or globally, in gene expression patterns and help to group genes into functional categories - for example, genes that are expressed to a greater or lesser extent in response to a drug or an existing disease.
|Item Type:||Book Section|
|Institutions:||Biology, Preclinical Medicine > Institut für Biophysik und physikalische Biochemie > Prof. Dr. Elmar Lang|
|Subjects:||500 Science > 570 Life sciences|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||12 Oct 2010 11:38|
|Last Modified:||12 Oct 2010 11:38|
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