Code and Data Repository for A Software Package and Data Set for the Personal Protective Equipment Matching Problem During Covid-19
针对COVID-19期间个人防护装备（PPE）的捐赠与需求匹配问题，提出了一个多目标优化模型，并提供了相应的软件包和数据集，旨在帮助决策者高效分配物资。
The PPE Matching Problem consists of optimally matching a set of requests, D, made by donors interested in donating Personal Protective Equipment (or PPE, such as masks, gowns, gloves, etc) with a set of requests, R, made by recipients interested in receiving PPE. Requests are characterized by a timestamp (date), a type and quantity of PPE to donate or request, and a donor or recipient id. The input of the problem also includes a matrix M of distances between donors and recipients. The objectives are multiple, and include maximizing the recipients' fill rate, minimizing the total shipping distance, minimizing the holding time of PPE, and minimizing the number of shipments of each donor.