0	0.23215	model time problem function system parameters data values 
1	0.04572	model control disease time rate population analysis covid 
2	0.21212	system systems control science model agents agent activity 
3	0.09101	energy water temperature flow science analysis systems process 
4	0.11656	function set let theorem problem systems equation system 
5	0.12523	data image using based proposed algorithm network systems 
6	0.11682	economic model market production price growth development economy 
7	0.08081	control system systems plasma design power current controller