In post-genome era, dealing with biology data from all of aspects has become a main work of bioinformatics. This study mainly analyzes the application of data mining in bioinformatics. Based on the summarize of the definition and main research contents of bioinformatics, the processing flow of bioinformatics data is illustrated. Then emphatically introduces data mining from the perspective of data preprocessing, dimension reduction and statistical machine learning in bioinformatics.
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