id	keyword
ajst-10990	user
ajst-10990	filtering
ajst-10990	recommendation
ajst-10990	algorithm
ajst-10990	data
ajst-10990	behavior
ajst-10990	tourism
ajst-10990	group
ajst-10990	model
ajst-10990	portrait
ajst-10990	word
ajst-10990	tags
ajst-10990	information