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Studies on several bioinformatics pr...

Li, Haifeng.

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Studies on several bioinformatics problems with machine learning techniques.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Studies on several bioinformatics problems with machine learning techniques./
作者:	Li, Haifeng.
面頁冊數:	197 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5501.
Contained By:	Dissertation Abstracts International66-10B.
標題:	Computer Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3191673
ISBN:	9780542345647

Studies on several bioinformatics problems with machine learning techniques.
Li, Haifeng.

Studies on several bioinformatics problems with machine learning techniques. - 197 p.

Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5501.

Thesis (Ph.D.)--University of California, Riverside, 2005.

The completion of the sequencing of the human genome was heralded the dawn of a new era in biology and medicine. Besides, advances in microarray technologies enable us to simultaneously observe the expression levels of many thousands of genes on the transcription levels during important biological processes. Such a global view of thousands of functional genes also changes the landscape of biological and biomedical research. However, the huge amount of DNA sequence data and gene expression data are of limited value if we cannot use them to discover the function and regulation of gene products.

ISBN: 9780542345647Subjects--Topical Terms:

626642
Computer Science.

Studies on several bioinformatics problems with machine learning techniques.
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520 $a The completion of the sequencing of the human genome was heralded the dawn of a new era in biology and medicine. Besides, advances in microarray technologies enable us to simultaneously observe the expression levels of many thousands of genes on the transcription levels during important biological processes. Such a global view of thousands of functional genes also changes the landscape of biological and biomedical research. However, the huge amount of DNA sequence data and gene expression data are of limited value if we cannot use them to discover the function and regulation of gene products.
520 $a This thesis is devoted to developing effective and efficient machine learning techniques for analyzing the huge amount of genetic data. Mathematically, learning means to fit a multivariate function to a given number of samples. Critically, the fitting should be predictive. After training a model on the gene expression profiling of some tumor and normal tissue samples, for instance, we hope that it can accurately determine if a new tissue sample is tumor or normal. More importantly, learning may also help us to discover the underlying biological way by fitting experimental biology data. For example, we may computationally determine the genetic markers related with cancer. In practice, learning techniques also have to be efficient so that we can deal with the flood of genetic data.
520 $a Following the above principles, we have proposed several learning methods for gene finding and gene expression analysis, including predicting translation initiation sites in eukaryotic mRNAs with support vector machines and edit kernels, accurate and robust cancer classification with gene expression profiling, minimum entropy clustering method, and a general framework for biclustering gene expression data. Because the EM algorithm has been widely applied in computational biology and bioinformatics, we also develop a regularized EM algorithm that can effectively reduce the uncertainty of missing data.
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