Identification of phenotype-defining gene signatures using the gene-pair matrix based clustering

Chung Wein Lee, Shuyu Dan Li, Eric W. Su, Birong Liao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Mining the "meaningful" clues from vast amount of expression profiling data remains to be challenge for biologists. After all the statistical tests, biologists often struggle deciding how to do next with a large list of genes without any obvious theme of mechanism, partly because most statistical analyses do not incorporate understanding of biological systems before hand. Here, we developed a novel method of "gene -pair difference within a sample" to identify phenotype-defining gene signatures, based on the hypothesis that a biological state is governed by the relative difference among different biological processes. For gene expression, it is relative difference among the genes within a sample (an individual, cell, etc), the highest frequency of occurrences a gene contributing to the within sample difference underline the contributions of genes in defining the biological states. We tested the method on three datasets, and identified the most important gene-pairs to drive the phenotypic differences.

Original languageEnglish
Title of host publicationData Mining and Bioinformatics - First International Workshop, VDMB 2006, Revised Selected Papers
PublisherSpringer Verlag
Pages106-119
Number of pages14
ISBN (Print)3540689702, 9783540689706
DOIs
StatePublished - 2006
Externally publishedYes
Event1st International Workshop on Data Mining and Bioinformatics, VDMB 2006 - Seoul, Korea, Republic of
Duration: 11 Sep 200611 Sep 2006

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4316 LNBI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference1st International Workshop on Data Mining and Bioinformatics, VDMB 2006
Country/TerritoryKorea, Republic of
CitySeoul
Period11/09/0611/09/06

Keywords

  • Gene pair
  • Hierarchical clustering
  • Lymphomas and adenocarcinoma
  • Phenotype-defining gene signatures

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