Title
Discovering relations among GO-annotated clusters by Graph Kernel methods
Abstract
The biological interpretation of large-scale gene expression data is one of the challenges in current bioinformatics. The state-of-theart approach is to perform clustering and then compute a functional characterization via enrichments by Gene Ontology terms [1]. To better assist the interpretation of results, it may be useful to establish connections among different clusters. This machine learning step is sometimes termed cluster meta-analysis, and several approaches have already been proposed; in particular, they usually rely on enrichments based on flat lists of GO terms. However, GO terms are organized in taxonomical graphs, whose structure should be taken into account when performing enrichment studies. To tackle this problem, we propose a kernel approach that can exploit such structured graphical nature. Finally, we compare our approach against a specific flat list method by analyzing the cdc15- subset of the well known Spellman's Yeast Cell Cycle dataset [2].
Year
Venue
Keywords
2007
ISBRA
go-annotated cluster,current bioinformatics,yeast cell cycle dataset,specific flat list method,biological interpretation,cluster meta-analysis,graph kernel method,flat list,discovering relation,gene ontology term,state-of-theart approach,kernel approach,different cluster,meta analysis,machine learning,gene expression,bioinformatics,cell cycle,kernel method,kernel methods
Field
DocType
Volume
Kernel (linear algebra),Graph kernel,Data mining,Cluster (physics),Graph,Computer science,Gene ontology,Exploit,Artificial intelligence,Bioinformatics,Cluster analysis,Machine learning
Conference
4463
ISSN
Citations 
PageRank 
0302-9743
3
0.43
References 
Authors
14
5
Name
Order
Citations
PageRank
Italo Zoppis13818.39
Daniele Merico2133.19
Marco Antoniotti310218.50
Bud Mishra41368219.91
Giancarlo Mauri52106297.38