计算机工程与应用 ›› 2021, Vol. 57 ›› Issue (24): 249-258.DOI: 10.3778/j.issn.1002-8331.2106-0459

• 工程与应用 • 上一篇    下一篇

优化烟花算法在医疗物资应急调度中的应用

许德刚,李凡,王露,郭奕欣,邢奎杰,梁腾翔   

  1. 1.河南工业大学 信息科学与工程学院,郑州 450001
    2.中国华能集团有限公司 信息中心,北京 100031
  • 出版日期:2021-12-15 发布日期:2021-12-13

Application of Optimized Fireworks Algorithm in Emergency Dispatching of Medical Supplies

XU Degang, LI Fan, WANG Lu, GUO Yixin, XING Kuijie, LIANG Tengxiang   

  1. 1.College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
    2.Information Center, China Huaneng Group Co., Ltd., Beijing 100031, China
  • Online:2021-12-15 Published:2021-12-13

摘要:

新冠肺炎疫情的爆发对医疗物资的应急管理提出了新的挑战,运输难、调度慢、中转效率低等问题普遍存在,严重影响了疫情排查和患者救治。为解决突发公共卫生事件下医疗物资应急调度问题,以需求点满意度最大化为主要目标,车辆行驶时间最小化为次要目标,建立了双目标医疗物资应急调度模型。为保证模型的准确性及简便性,采用了传染病模型(SEIR)预测需求点所需医疗物资数量,并利用理想点法将双目标问题转化为单目标问题。针对模型的特点,提出了一种优化烟花算法对模型进行求解,该算法通过改变变异策略增加其局部寻优能力,此外引入了禁忌表的概念,避免了算法陷入局部最优。最后通过仿真实验证明了优化烟花算法具有更加高效的性能,可以更好地突出模型的公平性及合理性,从而快速、合理地完成医疗物资分配,最大限度地保障患者生命安全。

关键词: 烟花算法, 应急调度, 医疗物资, 传染病模型, 禁忌搜索

Abstract:

The outbreak of the COVID-19 presents new challenges for emergency management of medical supplies. Epidemic investigation and patient treatment are severely affected by problems such as difficult transportation, slow dispatch, and low transfer efficiency. In order to solve the problem of emergency dispatch of medical supplies under public health emergencies, a dual-objective emergency dispatch model of medical supplies is established. It takes the maximization of demand point satisfaction as the main goal, and the minimization of vehicle travel time as the secondary goal. The SEIR model is used to predict the amount of medical supplies required at the demand point to ensure the accuracy and simplicity of the model. The model uses the ideal point method to transform the dual-objective problem into a single-objective problem. Aiming at the characteristics of the model, an optimized firework algorithm is proposed to solve the model. It increases the ability of local optimization by changing the mutation strategy. In addition, it introduces the concept of tabu table to avoid the algorithm from falling into the local optimum. Finally, the optimized firework algorithm is proved to have more efficient performance. It can better highlight the fairness and rationality of the model, so as to quickly and reasonably complete the distribution of medical supplies, and to maximize the safety of patients’ life.

Key words: fireworks algorithm, emergency dispatch, medical supplies, mathematical models of epidemic disease, tabu search