id	keyword
cana-2531	learning
cana-2531	data
cana-2531	education
cana-2531	student
cana-2531	analysis
cana-2531	research
cana-2531	intelligence
cana-2531	placeholder
cana-2531	score
cana-2531	vol
cana-2531	issn
cana-2531	systems
cana-2531	communications
cana-2531	methods