id	keyword
fumecheng-11979	w w
fumecheng-11979	criteria
fumecheng-11979	step
fumecheng-11979	maintenance
fumecheng-11979	decision
fumecheng-11979	method
fumecheng-11979	weight
fumecheng-11979	making
fumecheng-11979	management
fumecheng-11979	n w
fumecheng-11979	model
fumecheng-11979	ranking
fumecheng-11979	coefficients