id	keyword
american_scientific_journal-6789	cluster
american_scientific_journal-6789	assets
american_scientific_journal-6789	variables
american_scientific_journal-6789	analysis
american_scientific_journal-6789	2,00e-16
american_scientific_journal-6789	smll
american_scientific_journal-6789	2,20e-16
american_scientific_journal-6789	imab
american_scientific_journal-6789	table
american_scientific_journal-6789	ipca
american_scientific_journal-6789	ibovespa
american_scientific_journal-6789	technology