GEPAS -Gene Expression Pattern Analysis Suite Hongli Li Computer Science Department UMASS Lowell
Features Preprocessing –Log-transformation, replication handling, missing value imputation, filtering and normalization Analysis Tools –Viewer –Unsupervised Clustering –Differential Gene Expression –Supervised Classification –Data Mining with Gene Ontology (GO)
Pre-Analyses & Preprocessing Pre-analyses Preprocessing the data –Transform –Deal with replication and missing value –Filter patterns, standardize patterns –Filter genes
After Preprocess
PlotCorr
SOM
Cluster
EPCLUST Steps –Send to EPCLUST from GEPAS –Proceed –Go to respective page, remember the file name –Select the data interested –Use the interested tools to analysis
Conclusion Easy to use Preprocessing is quite powerful Connected to gene database