id	keyword
ejpam-1847	model
ejpam-1847	var
ejpam-1847	selection
ejpam-1847	candidate
ejpam-1847	model selection
ejpam-1847	sample
ejpam-1847	var model
ejpam-1847	order
ejpam-1847	subset
ejpam-1847	coefficients
ejpam-1847	qian