[Retracted] Optimization on Medical Material Distribution Management System Based on Artificial Intelligence Robot

Table 3

Summary of second modeling parameters.

	The collection of all nodes and node lines in the nth layer of space-time network
	The collection of all node lines between the supplier and the hospital warehouse in the nth layer of space-time network
	The collection of all node lines between the hospital warehouse and departments in the nth layer of space-time network
	The collection of all stranded node lines in the nth layer of space-time network
	The unit purchase price of medical materials in the nth layer of space-time network
	The unit distribution cost from warehouse to department in the nth time-space network
	The set of the nth layer of spatiotemporal networks and the set of all spatiotemporal networks
	The nit purchase price of medical materials in the nth layer of space-time network
	The unit distribution cost from warehouse to department in the nth time-space network
	The unit inventory cost of the medical materials in the warehouse/department in the nth time-space network
	The fixed cost incurred for each order in the nth layer of space-time network
	The unit out-of-stock cost in the nth time-space network
	The maximum storage capacity of the hospital warehouse and department for the stranded node line
	The lower limit and upper limit of the traffic of the node in the nth space-time network
	The demand of the -th node in the nth time-space network
	The confidence level of the corresponding opportunity constraint
	The flow of node line in the nth layer of space-time network
	The out-of-stock quantity of the -th node in the nth time-space network
	0–1 variable indicating whether the hospital orders from the supplier