id	keyword
fumecheng-11955	data
fumecheng-11955	ooa
fumecheng-11955	replica
fumecheng-11955	placement
fumecheng-11955	algorithm
fumecheng-11955	toc
fumecheng-11955	systems
fumecheng-11955	servers
fumecheng-11955	pso
fumecheng-11955	gwa
fumecheng-11955	sfla
fumecheng-11955	access
fumecheng-11955	time
fumecheng-11955	optimization
fumecheng-11955	performance
fumecheng-11955	fig
fumecheng-11955	items
fumecheng-11955	problem
fumecheng-11955	methods
fumecheng-11955	data items