摘要
为了优化现有的护林航站选址工作方法,提出了一种基于随机森林赋权的航空护林起降点布局规划改进方法。从历年统计数据出发,采用平衡数据集SMOTE算法生成样本数据,基于随机森林(RF)算法结合Z-SCORE与T分数建立一种客观的重要度评价模型。同时结合林火蔓延公式与P-中值数学模型对航空护林起降点的救援能力进行建模分析,综合重要度评价模型最终给出合理的起降点布局及建设顺序。并通过实例验证了模型的科学性和有效性。
In order to optimize the existing planning method of take-off and landing points for aerial forest protection,this paper proposed an improved method based on random forest weighting.First,a structural model of factors affecting the construction of aerial forest protection take-off and landing points was established.Furthermore,after using the SMOTE algorithm,Z-SCORE and T-score transformation to process the data,an objective weighting method was proposed based on the random forest algorithm,and an evaluation model of the importance of factors affecting the takeoff and landing of aviation forest protection was constructed.Combined the forest fire spread formula with the P-median model to analyze the rescue range of an aerial forest protection.Finally,a layout of take-off and landing points and construction sequence were given.An example is given to verify the scientific nature and high efficiency of the model and algorithm.
作者
杨明明
邵荃
刘浩然
YANG Ming-ming;SHAO Quan;LIU Hao-ran(College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《航空计算技术》
2021年第2期49-53,共5页
Aeronautical Computing Technique
基金
国家重点研发计划项目资助(2018YFC0809500)
国家自然科学基金项目资助(71874081)
江苏高校青蓝工程
江苏省自然科学基金面上项目资助(BK20201296)
南京航空航天大学研究生创新基地开放基金项目资助(kfjj20190722)。
关键词
航空消防
客观赋权模型
选址规划
随机森林
P中值模型
aviation fire fighting
objective weighting model
layout planning
random forest algorithm
P-median location model
