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

Table 1

Summary of modeling parameters.

	The set of all nodes and nodes in the space-time network
	The collection of all nodes between the supplier and the hospital warehouse
	The collection of all nodes between the hospital warehouse and the department
	The collection of all stranded node lines
	The unit purchase price of medical supplies
	The unit distribution cost from warehouse to department
	The unit inventory cost of medical materials in the warehouse/department
	Fixed costs incurred for each order
	The lower limit and upper limit of the flow of the node line
	The demand amount of the -th node
	Flow of node line
	0–1 variable indicating whether the hospital orders from the supplier