校园供水系统是校园公用设施的重要组成部分，学校为了保障校园供水系统的正常运行需要投入大量的人力、物力和财力。随着科学技术的发展，校园内已经普遍使用了智能水表，从而可以获得大量的实时供水系统运行数据。后勤部门希望基于这些数据，通过数学建模和数据挖掘及时发现和解决供水系统中存在的问题，提高校园服务和管理水平。

2020美赛E题5方面的塑料数据，包含办公室或学校用品塑料，电气绝缘配件塑料，生活用品塑料，家具塑料，卫生用品塑料的各国的使用情况。

这是我们队伍2018年美赛ICM E题的论文，关于环境评价类，最后是二等奖，大家可以参考参考。共同学习。

Bad climate change may greatly increase the fragility of the country. How to evaluate the impact of climate change and mitigate the impact of climate change has become an urgent problem. With regard to task one, a data envelopment analysis (DEA) model is established to get the country's fragility. First of all, we selected 4 climate factors as input indicators and 5 output indicators. Then, we use the entropy method to determine the weight and then the national vulnerability is divided. At the same time, we get the conclusion that temperature affects GDP and the times of armed conflict directly and affects the fragility indirectly. In view of task two, we choose Somalia as an object of study. First, all the indexes are divided into 5 levels by the method of cluster analysis. Second, we select 10 countries including Somalia, to solve the decision unit matrix. Then, using the model of the problem one, it is found that the increase in temperature and rainfall will cause the national vulnerability to rise and decrease, respectively. Finally, we assign 4 climate indicators to 0 of the decision units, and draw the conclusion that national vulnerability will be reduced without the impact of climate factors. When it comes to task three, we use the rough set theory to reduce the output index to the number of armed conflicts. Then, we use the BP neural network model to predict the conclusion: There is a significant increase in fragility in cases of much more armed conflict and abnormal temperature. When the average annual armed conflict is certain, the national vulnerability index will face an increasing turning point at the temperature of 10.01 and the rainfall of 1823mm. As to task four, three policies on energy reduction and emission reduction issued by the government have been selected, and a model of carbon cycle is established. Taking China as an example, we calculate the extent of the change of the average temperature by reducing the carbon dioxide emiss

这是一份细致描述2017年美赛E题的第四问。使用您的度量标准，将重新设计的智能增长计划中的各个计划列为最有潜力到最小潜力的计划。比较和对比两个城市的举措及其排名。

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