美赛论文要点
美赛论文
注:LEO 低地球轨道MEO中地球轨道GeO 同步卫星轨道risk-profit 风险利润率fixed-profit rate 固定利润率提出一个合理的商业计划,可以使我们抓住商业机会,我们建立四个模型来分析三个替代方案(水射流,激光,卫星)和组合,然后确定是否存在一个经济上有吸引力的机会,从而设计了四种模型分析空间碎片的风险、成本、利润和预测。
首先,我们建立了利润模型基于净现值(NPV)模型,并确定三个最佳组合的替代品与定性分析:1)考虑了三个备选方案的组合时,碎片的量是巨大的;2)考虑了水射流和激光的结合,认为碎片的大小不太大;3)把卫星和激光的结合当尺寸的这些碎片足够大。
其次,建立风险定性分析模型,对影响因素进行分析在每一种替代的风险,并得出一个结论,风险将逐渐下降直到达到一个稳定的数字。
在定量分析技术投入和对设备的影响投资中,我们建立了双重技术的学习曲线模型,找到成本的变化规律与时间的变化。
然后,我们开发的差分方程预测模型预测的量在未来的四年内每年发射的飞机。
结合结果我们从预测中,我们可以确定最佳的去除选择。
最后,分析了模型的灵敏度,讨论了模型的优势和我们的模型的弱点,目前的非技术性的信,指出了未来工作。
目录1,简介1.1问题的背景1.2可行方案1.3一般的假设1.4我们的思想的轮廓2,我们的模型2.1 时间---利润模型2.1.1 模型的符号2.1.2 模型建立2.1.3 结果与分析2.2 . 差分方程的预测模型2.2.1 模型建立2.2.2 结果分析2.3 双因子技术-学习曲线模型2.3.1 模型背景知识2.3.2 模型的符号2.3.3 模型建立2.3.4 结果分析2.4风险定性分析模型2.4.1 模型背景2.4.2 模型建立2.4.3 结果与分析3.在我们模型的灵敏度分析3.1 差分方程的预测模型。
3.1.1 稳定性分析3.1.2 敏感性分析3.2 双因子技术学习曲线模型3.2.1 稳定性分析3.2.2 敏感性分析4 优点和缺点查分方程预测模型优点缺点双因子技术学习曲线模型优点缺点时间---利润模型优点缺点5..结论6..未来的工作7.参考双赢模式:拯救地球,抓住机遇1..简介问题的背景空间曾经很干净整洁。
美国数学建模竞赛优秀论文阅读报告
2.优秀论文一具体要求:1月28日上午汇报1)论文主要内容、具体模型和求解算法(针对摘要和全文进行概括);In the part1, we will design a schedule with fixed trip dates and types and also routes. In the part2, we design a schedule with fixed trip dates and types but unrestrained routes.In the part3, we design a schedule with fixed trip dates but unrestrained types and routes.In part 1, passengers have to travel along the rigid route set by river agency, so the problem should be to come up with the schedule to arrange for the maximum number of trips without occurrence of two different trips occupying the same campsite on the same day.In part 2, passengers have the freedom to choose which campsites to stop at, therefore the mathematical description of their actions inevitably involve randomness and probability, and we actually use a probability model. The next campsite passengers choose at a current given campsite is subject to a certain distribution, and we describe events of two trips occupying the same campsite y probability. Note in probability model it is no longer appropriate to say that two trips do not meet at a campsite with certainty; instead, we regard events as impossible if their probabilities are below an adequately small number. Then we try to find the optimal schedule.In part 3, passengers have the freedom to choose both the type and route of the trip; therefore a probability model is also necessary. We continue to adopt the probability description as in part 2 and then try to find the optimal schedule.In part 1, we find the schedule of trips with fixed dates, types (propulsion and duration) and routes (which campsites the trip stops at), and to achieve this we use a rather novel method. The key idea is to divide campsites into different “orbits”that only allows some certain trip types to travel in, therefore the problem turns into several separate small problem to allocate fewer trip types, and the discussion of orbits allowing one, two, three trip types lead to general result which can deal with any value of Y. Particularly, we let Y=150, a rather realistic number of campsites, to demonstrate a concrete schedule and the carrying capacity of the river is 2340 trips.In part 2, we find the schedule of trips with fixed dates, types but unrestrained routes. To better describe the behavior of tourists, we need to use a stochastic model(随机模型). We assume a classical probability model and also use the upper limit value of small probability to define an event as not happening. Then we use Greedy algorithm to choose the trips added and recursive algorithm together with Jordan Formula to calculate the probability of two trips simultaneously occupying the same campsites. The carrying capacity of the river by this method is 500 trips. This method can easily find theoptimal schedule with X given trips, no matter these X trips are with fixed routes or not. In part 3, we find the optimal schedule of trips with fixed dates and unrestrained types and routes. This is based on the probability model developed in part 2 and we assign the choice of trip types of the tourists with a uniform distribution to describe their freedom to choose and obtain the results similar to part 2. The carrying capacity of the river by this method is 493 trips. Also this method can easily find the optimal schedule with X given trips, no matter these X trips are with fixed routes or not.2)论文结构概述(列出提纲,分析优缺点,自己安排的结构);1 Introduction2 Definitions3 Specific formulation of problem4 Assumptions5 Part 1 Best schedule of trips with fixed dates, types and also routes.5.1 Method5.1.1 Motivation and justification5.1.2 Key ideas5.2 Development of the model5.2.1Every campsite set for every single trip type5.2.2 Every campsite set for every multiple trip types5.2.3One campsite set for all trip types6 Part 2 Best schedule of trips with fixed dates and types, but unrestrained routes.6.1 Method6.1.1 Motivation and justification6.1.2 Key ideas6.2 Development of the model6.2.1 Calculation of p(T,x,t)6.2.2 Best schedule using Greedy algorithm6.2.3 Application to situation where X trips are given7 Part 3 Best schedule of trips with fixed dates, but unrestrained types and routes.7.1 Method7.1.1 Motivation and justification7.1.2 Key ideas7.2 Development of the model8 Testing of the model----Sensitivity analysis8.1Stability with varying trip types chosen in 68.2The sensitivity analysis of the assumption 4④8.3 The sensitivity analysis of the assumption 4⑥9 Evaluation of the model9.1 Strengths and weaknesses9.1.1 Strengths9.1.2 Weakness9.2 Further discussion10 Conclusions11 References12 Letter to the river managers3)论文中出现的好词好句(做好记录);用于问题的转化We regard the carrying capacity of the river as the maximum total number of trips available each year, hence turning the task of the river managers into looking for the best schedule itself.表明我们在文中所做的工作We have examined many policies for different river…..问题的分解We mainly divide the problem into three parts and come up with three different….对我们工作的要求:Given the above considerations, we want to find the optimal。
美国数学建模竞赛论文写作
2021/3/10
讲解:XX
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三、写作规范
4. 写简单的句子
差:The value of the parameter a, which was used in the previous section to determine the height of the building, can also be used to determine its width. 好:In the previous section, we use the value of the parameter a to determine the height of the building. We can also use a to determine the width of the building.
国际数学建模竞赛 论文写作
参 考 书 目
2021/3/10
讲解:XX
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说明:
※ 这不是灵丹妙药 ※ 这不是英语课程
2021/3/10
讲解:XX
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一、写作的重要性 二、论文结构 三、写作规范 四、英语用法 五、符号与图标 六、数学表达式和句子
2021/3/10
讲解:XX
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一、写作的重要性
1. 摘要是论文最重要的部分; 2. 写作是国际建模竞赛的难点.
差:We will now find the solutions of the following equation. 好:We will now solve the following equation.
2021/3/10
讲解:XX
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三、写作规范
8. 使用并列短语强调相似性
美赛 文献综述 开头
美赛文献综述开头
文献综述是科研工作中的重要环节,通过对已有文献的整理、分析和总结,可以帮助研究者更好地把握前人工作的现有成果和不足之处,为自己的研究提供指导和启示。
本文将结合最新的研究进展,就美国数学建模大赛(MCM/ICM)的相关文献进行综述,希望能为广大参赛者提供一些有益的启发。
首先,美赛作为一个知名的数学建模竞赛,每年吸引了来自全球各地的数千名参赛者。
参赛者需要在规定的时间内,针对所提出的问题进行深入的研究和分析,最终给出合理的建模方案和解决方案。
因此,对于参赛者而言,对前人的研究成果进行充分的了解是至关重要的。
其次,通过对美赛历年获奖作品的文献进行分析,可以发现一些共性和规律。
比如,优秀的团队往往具有良好的团队协作能力和高效的分工合作方式;在问题建模和解决过程中,他们通常能够充分挖掘数据的潜在规律,结合数学工具和计算机算法,提出创新性的解决方案。
这些都是参赛者可以借鉴和学习的经验和教训。
最后,希望参赛者在阅读文献综述的过程中,不仅能够了解前人的研究成果和方法,还要结合自身的实际情况和研究对象,找到适合自己的解题思路和技巧。
同时,要注重团队协作能力的培养和提升,不断学习和改进自己的数学建模能力,为未来的参赛之路奠定坚实的基础。
综上所述,文献综述在美赛准备过程中具有重要的指导意义,通过对前人的研究成果进行深入的分析和总结,可以帮助参赛者更好地把握竞赛的要点和难点,为取得优异的成绩提供有力的支持。
希望广大参赛者能够认真对待文献综述,积极学习和借鉴前人的经验,不断提升自身的数学建模能力,为美赛的成功参赛打下坚实的基础。
美赛论文~cumcm10038国2重点
积分计算不同油位高度下的油量,发现所得结果和附件 2 中所给的显示示油高与显示油量容积契合度非常高,误差数量级为10 m ,初步确定了模型的正确行,为变位参数的确定奠定了基础。
此模型唯一不确定的参数就是变位参数,也就是纵向倾斜角度α 与横向偏转角度β。
为了确定变位参数,我们采用类似于数据拟合的方法。
在附件 2 的表中从上到下依次随机提取几组油位高度数据,累积两个油位高度中间的油量变化,通过粒子群算法,找到一组变位参数,使通过模型算出的每组的两个高度下的油量差与表中的累积油量变化的差的绝对值之和最小,由此确定变位参数。
在实际的拟合过程中,出现了不确定性,即α 和β并没有固定的最佳取值,在 2.0° 2.4°,2° 6°的范围里,误差均能满足要求。
但是为了使附件 2 中每两个相邻高度的油量差与模型计算出的值之差的累积和更接近 0,我们选择了α 2.14°,β 4.09°作为第二问中油罐的变位参数。
在拟合数据过程中我们选择了附件 2 中加油前的数据,验证时采用加油后的数据。
误差如下图: V(L 3 x 10 -3 2 1 0 -1 -2 -3 0 50 100 150 200 250 300 图 12 点主要集中在(-1,1区间内,由此可见误差满足要求。
而在前面所给出的变位参数的范围内,误差点的分部均与此图相似,在此不做多余的罗列。
在确定了变位参数后,我们采用上述的分段积分的方法,用 MATLAB 软件编程,计算出了变位状态下的油罐的罐容表。
11罐容表油位油位油位高度油量(m3 高度油量(m3 高度油量(m3 (m (m (m 0.00.04626 1.1 19.23630 2.2 49.29931 0.1 0.35337 1.2 21.91157 2.3 51.75460 0.2 1.058291.3 24.645172.4 54.08959 0.3 2.20884 1.4 27.42114 2.5 56.28330 0.43.68446 1.5 30.22391 2.6 58.31205 0.5 5.41145 1.6 33.03810 2.7 60.14782 0.6 7.34786 1.7 35.84848 2.8 61.75502 0.7 9.46251 1.8 38.63975 2.9 63.08144 0.8 11.72980 1.9 41.39648 3.0 64.01563 0.9 14.12757 2.0 44.10290 1.0 16.63586 2.1 46.74280 四、模型分析及评价4.1 模型分析问题二中用到的模型,是根据在实际生活中α 和β两个角度都比较小这一情况,推导出五种不同油位高度情况下的油料体积计算式。
《美赛论文写作》课件
掌握PPT制作技巧,制作高 效且展示专业化的幻灯片。
通过学习和实践,在美赛中 展示专业、高效的文学写作 和幻灯片制作技巧。
问题解答
1 答疑解惑
2 课程反馈
回答学员在学习和实践中遇到的问题,保障学员 实现学习效果。
收集学员对该课程的反馈,反馈结果将用于后续 课程的改善和优化。
5
论文基本要素
介绍论文的基本组成部分和写作要求,引导 选手开始论文写作。
语言表达与修辞
着重讲解论文细节部分,从选题到修辞手法, 给出一些可供参考的写作技巧。
参考文献引用与写作规范
介绍如何引用文献、如何写参考文献和常见 的写作规范。
PPT制作技巧
PPT总体设计理念
从PPT设计的整体思路出发,介绍PPT主题、设计风格 和模板选择等方面的技巧。
给出竞赛的具体时间节点,包括摸底赛和正式比赛。
竞赛准备
列一些准备工作和注意事项,包括选题、下载数据 等。
美赛论文写作策略
1
内容组织与结构分析
2
讲解论文结构的设计、关键信息的呈现,并
且给出一些有效性的写作技巧。
3
展示数据与图表设计
4
有效、清晰的表达数据是论文的重要组成部
分,此节介绍如何呈现数据及其图表设计。
图形设计与视频/音频插入
介绍图形设计、视频、音频、图片等多媒体素材的插 入和处理。
制作专业的动画效果
讲解如何利用PPT自带的动画效果和过渡效果,设计制
如何在团队中协作
介绍如何利用PPT自带的分享功能,在团队中协作
3 展示专业化水平
掌握论文写作技巧,将论文 写得更加精简、清晰、合理。
《美赛论文写作》PPT课 件
这份PPT课件为你准备了美赛论文写作的攻略和PPT制作技巧。从文章结构和 细节到PPT设计和协作分享,掌握技巧,制作专业的论文和幻灯片。
92年美国数学建模竞赛优秀论文介绍
由华盛顿大学三名学生(简称华队)完成的92年美国大学党建是竞赛B题的一篇优秀论文1.题目与背景题目:研究室紧急电力修复系统的修复计划背景:沿海地区由于经常受风暴袭击,电力公司必须有相应的修复系统。
过去电力公司(HECO)由于缺少优先排序受到媒体批评,故欲聘请顾问提出合理修复计划。
风暴修复申请报告如表所列。
(略)表上提供了报告时间(即申请提出时间)、申请单位类型、估计修复所需时间以及单位位置。
2.基本假设与条件公司对于修复工作,给出下述假设与条件:(1)有两个修复中心,其位置为(0,0)、(40,40)、修复区域为6565,5050-<<-<<;x y(2)道路系统良好,修理工只需在交接班时返回修理中心;(3)除了交通枢纽及医院需立即修理外,其余的修理工作必须在风暴过后(6:00以后)开始进行;(4)每个中心有三名熟练工人全天轮流值班,每人工作8小时,紧急修理时每个点有6名工人可启用,每个工人在一个工作日里可加班8小时,加班报酬为正常报酬的1.5倍。
此外命题者允许参赛者作必要的简化或假设。
除上述假设外华队又增加了一些假设,可概括为:(1)街道为东西---南北向,两点间路程公式为||||ab a b a b d x x y y =-++道路状况良好,均匀,路途时间只取决于距离。
车辆路途运行费用与工资相比可忽略不计。
(2) 每个正常班工资为$10/小时,加班费为$15/小时。
工人在未完成一项任务时不得移动地点,每个工人可以加班8小时,但已超过时不得开始新工作。
各工人联系充公,保证工作指派不合冲突。
(3) 同一作业不因指派多于1 人而加速。
所有工作人员均有相同的能力与效率。
(4) 车辆行驶速度规定为60哩/小时。
(5) 在未发生风暴前每点有1 人值班,风暴后每点有6人安排在3班上(午夜12点,早8点,下午4点)。
3. 对问题的分析华队认为问题的关键是将修复单位合理排序并合理指派工人。
美赛格式要求
美赛格式要求
美赛格式要求是美赛和联赛所必须遵守的排版规范。
具体原则包括:
1、比赛论文必须以“A4”大小的纸本形式提交,上面的中文文字应用“宋体”或“黑体”字体,英文字体应用“Times New Roman”表达方式,文字大小为“五号”(12号)。
2、论文书写格式为“短边距2.5(厘米),页边距3厘米”,同时,每页之间应留2行行距。
3、论文标题页、正文页、参考文献页、及附件(如果有)等应全部按照标准格式样式进行排版。
4、论文用词、表达方式及思路有条理、主题性良好的文字表达是美赛的关键,即“精确、严谨、简明”的文章质量是基本标准。
关于一些美赛的技巧
查找文献的办法,各个学校可能都有自己购买的数据库,我在这里想提一下谷歌一个很厉害的功能,当然如果大家已经知道了就跳过吧。
那就是在关键词后边加上filetype:pdf,会有很多意想不到的收获!我们当时在找tipping point的时候查了很多数据库,但是垃圾信息也很多,谷歌的这个功能帮我们节省了不少时间,最后有用的数据也是从这里面找到的。
1. 论文的最前面一定要有assumptions,这个真的非常重要,只有宇宙无敌马克思主义是没有任何假设绝对正确的,如果大家的假设写的很专业很make sense,评委一定会想继续看下去的。
2. 格式一定要新颖,可以参照我发的链接里的O奖论文,大家可以发现这几篇论文的格式差别非常大,但是都有一个共同点:新颖,不死板。
我觉得老外还是挺在乎逼格的,你写的太中国风人家会觉得你不够creative,当然我说再多都没用,大家下载了那个文档一看就懂了。
3. 图片一定要fancy!不要把eviews等低端软件的统计报告图复制粘贴到你的论文里,这样做真的非常low!一定要自己画出很fancy但是很浅显易懂的图,真的很加分,journal里面的评委也是这样说的。
4. 最让人无语的是把代码写到论文里的同学,这个就不吐槽了,总之美赛的思想>算法>代码,你结果做不出来编一个都行(不过这样好像不太诚信,但是身边真有M奖的结果是编的,所以好像不是很重要),最重要的是你的想法,为什么要用这个方法?为什么方法是可行的?你是怎样做的?至于结果能做出来当然最好,没做出来也要想办法让你的论文显得很完整。
通过一周对美赛体制及outstanding论文的分析,得出了以下几个结论,希望与各位共同探讨:(1)美赛获奖覆盖率相当之大,只要你不作弊,三等奖就能到手,只要你摘要清晰明了,思路创新有依据,就能拿二等奖,其实拿一等奖最大的困扰就是英语,要拿一等奖必须要把最简单的道理全都说出来,力求用外国人欣赏的英语风格,尽量多的而有效率的叙述说明;当然把以后几点都做到,再配上点创新及参考文献标注地严格规范,你就是O奖得主;(2)美赛查资料问题:美赛题所需的资料基本上都能用谷歌实现,所以建议各位多去找一些谷歌全攻略来学习一下,但是有一点的是,就是你所参考过的资料,你都要在论文参考文献中或论文中有所提及,即便你只抄了6个单词,美赛对于版权问题查的是非常之严格的,不像国赛;(3)美赛算法创新及实现问题:如果你能从基本算法入手,把几种算法组合起来,并通过在美国教授看来比较权威的软件实现,这就是创新,权威点的软件当然是指多用美国出产的数学或制图软件。
2022美赛论文规范
2022美赛论文规范1.标点符号毕亚论文中的标点符号应按新闻出版署公布的“标点符号用法”使用。
2.名词、名称科学技术名词术语采用全国自然科学名词审定委员会公布的规范词或国家标准、部标准中规定的名称,尚未统一规定或叫法有争议的名称术语,可采用惯用的名称。
使用外文缩写代替某一名词术语时,首次出现时应在括号内注明其含义。
外国人名一般采用英文原名,按名前姓后的原则书写。
一般很熟知的外国人名(如牛顿、达尔文、马克思等)可按通常标准译法写译名。
3.量和单位量和单位必须采用中华人民共和国的国家标准GB3100~GB3102-93。
非物理量的单位,如件、台、人、元等,可用汉字与符号构成组合形式的单位,例如件/台、元/km。
4.数字毕业论文中的测量统计数据一律用阿拉伯数字,但在叙述不很大的数目时,一般不用阿拉伯数字,如“采用两级传动”不宜写成“采用2级传动”。
大约的数字可以用中文,也可以用阿拉伯数字,如“约百五十人”,也可写成“约150人”5.标题层次毕业论文的全部标题层次应有条不紊,整齐清晰。
相同的层次应采用统一的表示体例,正文中各级标题下的内容应同各自的标题对应,不应有与标题无关的内容。
章节编号方法应采用分级阿拉伯数字编号方法,两级之间用下角圆点隔开,每一级的末尾不加标点。
第一级为“1”、“2”、“3”等,第二级为“2.1”、“2.2”、“2.3”等,第三级为“2.2.1”、“2.2.2”、“2.2.3”等,但分级阿拉伯数字的编号一般不超过四级。
各层标题均单独占行书写。
第四级标题以下单独占行的标题顺序采用A.B.C.?和a.b.c.两层,标题均空两格书写序数,后空一格写标题。
正文中对总项包括的分项采用(1)、(2)、(3)...单独序号,对分项中的小项采用①、②、③...的序号或数字加半括号,括号后不再加其他标点。
数模美国赛相关论文9
R'的前 个特征根及其对应的单位化特征 的前m个特征根及其对应的单位化特征 的前 向量就是主因子解. 向量就是主因子解.
迭代主因子法(iterated principal factor) )
Heywood现象
残差矩阵
五,因子旋转
目的:使因子负荷两极分化,要么 目的:使因子负荷两极分化, 接近于0,要么接近于1. 接近于 ,要么接近于 . 常用的旋转方法: 常用的旋转方法:
(1)方差最大正交旋转
(varimax
orthogonal rotation)
基本思想:使公共因子的相对负荷 基本思想: 的方差之和最大, (lij/hi2)的方差之和最大,且保持原公 共因子的正交性和公共方差总和不变. 共因子的正交性和公共方差总和不变. 可使每个因子上的具有最大载荷的变量 数最小,因此可以简化对因子的解释. 数最小,因此可以简化对因子的解释.
谢谢! 谢谢!
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六,因子得分
Thomson法,即回归法 回归法得分是由Bayes思想导出的,得 思想导出的, 回归法得分是由 思想导出的 到的因子得分是有偏的, 到的因子得分是有偏的,但计算结果 误差较小. 误差较小.
Bartlett法 Bartlett因子得分是极大似然估计,也 因子得分是极大似然估计, 因子得分是极大似然估计 是加权最小二乘回归, 是加权最小二乘回归,得到的因子得 分是无偏的,但计算结果误差较大. 分是无偏的,但计算结果误差较大. 因子得分可用于模型诊断,也可用作 因子得分可用于模型诊断, 进一步分析的原始资料. 进一步分析的原始资料.
美国大学生数学建模大赛优秀论文一等奖摘要
SummaryChina is the biggest developing country. Whether water is sufficient or not will have a direct impact on the economic development of our country. China's water resources are unevenly distributed. Water resource will critically restrict the sustainable development of China if it can not be properly solved.First, we consider a greater number of Chinese cities so that China is divided into 6 areas. The first model is to predict through division and classification. We predict the total amount of available water resources and actual water usage for each area. And we conclude that risk of water shortage will exist in North China, Northwest China, East China, Northeast China, whereas Southwest China, South China region will be abundant in water resources in 2025.Secondly, we take four measures to solve water scarcity: cross-regional water transfer, desalination, storage, and recycling. The second model mainly uses the multi-objective planning strategy. For inter-regional water strategy, we have made reference to the the strategy of South-to-North Water Transfer[5]and other related strategies, and estimate that the lowest cost of laying the pipeline is about 33.14 billion yuan. The program can transport about 69.723 billion cubic meters water to the North China from the Southwest China region per year. South China to East China water transfer is about 31 billion cubic meters. In addition, we can also build desalination mechanism program in East China and Northeast China, and the program cost about 700 million and can provide 10 billion cubic meters a year.Finally, we enumerate the east China as an example to show model to improve. Other area also can use the same method for water resources management, and deployment. So all regions in the whole China can realize the water resources allocation.In a word, the strong theoretical basis and suitable assumption make our model estimable for further study of China's water resources. Combining this model with more information from the China Statistical Yearbook will maximize the accuracy of our model.。
美国大学生数学建模比赛的论文格式
ContentsⅠIntroduction (1)1.1Problem Background (1)1.2Previous Research (2)1.3Our Work (2)ⅡGeneral Assumptions (3)ⅢNotations and Symbol Description (3)3.1 Notations (4)3.2 Symbol Description (4)ⅣSpread of Ebola (5)4.1 Traditional Epidemic Model (5)4.1.1.The SEIR Model (5)4.1.2 (6)4.1.3 (6)4.2 Improved Model (7)4.2.1.The SEIHCR Model (8)4.2.2 (9)ⅤPharmaceutical Intervention (9)5.1 Total Quantity of the Medicine (10)5.1.1.Results from WHO Statistics (10)5.1.2.Results from SEIHCR Model (11)5.2 Delivery System (12)5.2.1.Locations of Delivery (13)5.2.2 (14)5.3 Speed of Manufacturing (15)ⅥOther Important Interventions (16)6.1 Safer Treatment of Corpses (17)6.2 Conclusion (18)ⅦControl and Eradication of Ebola (19)7.1 How Ebola Can Be Controlled (20)7.2 When Ebola Will Be Eradicated (21)ⅧSensitivity Analysis (22)8.1 Impact of Transmission Rate (23)8.2 Impact of the Incubation Priod (24)ⅨStrengths and Weaknesses (25)9.1 Strengths (26)9.2 Weaknesses (27)9.3 Future Work (28)Letter to the World Medical Association (30)References (31)ⅠIntroduction1.1.Promblem Background1.2.Previous Research1.3.Our WorkⅡGeneral Assumptions●●ⅢNotations and Symbol Description3.1. Notataions3.2. Symbol DescriptionSymbol DescriptionⅣSpread of Ebola4.1. Traditional Epidemic Model4.1.1. The SEIR Model4.1.2. Outbreak Data4.1.3. Reslts of the SEIR Model4.2. Improved Model4.2.1. The SEIHCR Model4.2.2. Choosing paametersⅤPharmaceutical Intervention 5.1. Total Quantity of the Medicine 5.1.1. Results from WHO Statistics5.2. Delivery System5.2.1. Locations of Delivery5.2.2. Amount of Delivery5.3. Speed of Manufacturong5.4. Medicine EfficacyⅥOther Important Interventions 6.1. Safer Treatment of Corpses6.2. ConclusionⅦControl and Eradication of Ebola 7.1. How Ebola Can Be Controlled7.2. When Ebola Will Be EradicatedⅧSensitivity Analysis8.1. Impact of Transmission Rate8.2. Impact of Incubation PeriodⅨStrengths and Weaknesses 9.1. Strengths●●●9.2. Weaknesses●●●9.3.Future WorkLetter to the World Medical AssociationTo whom it may concern,Best regards,Team #32150References [1][2][3][4]。
美国赛论文写作要求
Teams prepare solutions1.Teams may use any inanimate source of data or materials: computers, software, references, websites, books, etc. ALL SOURCES USED MUST BE CREDITED. Failure to credit a source will result in a team being disqualified from the competition.2.Team members may not seek help from or discuss the problem with their advisor or anyone else, except other members of the same team. Input in any form from anyone other than student team members is strictly forbidden. This includes email, telephone contact, and personal conversation, communication via web chat or other question-answer systems, or any other form of communication.3.Partial solutions are acceptable. There is no passing or failing cut-off score, and numerical scores will not be assigned. The MCM/ICM contest judges are primarily interested in the team’s approach and methods.4.Summary Sheet: The summary is an essential part of your MCM/ICM paper. The judges place considerable weight on the summary, and winning papers are often distinguished from other papers based on the quality of the summary.To write a good summary, imagine that a reader will choose whether to read the body of the paper based on your summary: Your concise presentation in the summary should inspire a reader to learn about the details of your work. Thus, a summary should clearly describe your approach to the problem and, most prominently, your most important conclusions. Summaries that are mere restatements of the contest problem, or are a cut-and-paste boilerplate from the Introduction are generally considered to be weak.Besides the summary sheet as described each paper should contain the following sections:Restatement and clarification of the problem: State in your own words what you are going to do.Explain assumptions and rationale/justification: Emphasize the assumptions that bear on the problem. Clearly list all variables used in your model.Include your model design and justification for type model used or developed. Describe model testing and sensitivity analysis, including error analysis, etc. Discuss the strengths and weaknesses of your model or approach.5. The judges will evaluate the quality of your writing in the Solution Paper:· Conciseness and organization are extremely important.· Key statements should present major ideas and results.· Present a clarification or restatement of the problem, as appropriate.· Present a clear exposition of all variables, assumptions, and hypotheses.· Present an analysis of the problem, including the motivation or justification for the model that is used.· Include a design of the model.·Discuss how the model could be tested, including error analysis and stability (conditioning, sensitivity, etc.).· Discuss any apparent strengths or weaknesses in your model or approach.6. Papers must be typed and in English.7. The solution must consist entirely of written text, and possibly figures, charts, or other written material, on paper only. No non-paper support materials such as computer files or disks will be accepted.8. The Solution Paper must display the team control number and the page number at the top of every page; for example, use the following page header on each page:Team # 321 Page 6 of 139. The names of the students, advisor, or institution should NOT appear on any page of the print solution or electronic solution. The solution should not contain any identifying information other than the team control number.10. Failure to adhere to any preparation rule is grounds for team disqualification.。
2022美赛A题相关论文
2022美赛A题相关论文美国大学生数学建模竞赛(MCM/ICM)是世界范围内最具影响力的大学生数学建模竞赛(含金量仅次于数模国赛)。
MCM/ICM着重强调研究和解决方案的原创性、团队合作、交流及结果的合理性。
竞赛题目内容涉及经济、管理、环境、资源、生态、医学、安全、未来科技等众多领域。
每年题目为6个,分别是:有同学会好奇ICM和MCM的区别大么?他们之间难度的区别大么?等等,这个因人而异,看你对哪个题目更熟悉,能够做的出彩,他们其实都需要数学建模,然后采用一些算法解决,最终以论文的形式呈现,究竟怎么选择还是看你对哪个题目更有感觉。
我个人感觉,MCM的题目可能更看重数学模型,ICM的更强调算法,比如ICM会用到一些复杂的算法,MCM一般不出现很复杂的算法。
2021年的C题比往年数据量大很多,是关于图像和视频处理的,所以需要用到一些新的知识和方法,想做C题的朋友要注意这个变化。
具体如何准备美赛我会在后文细说。
美赛的奖项大家应该都有所了解,奖项的英文首字母作为简称,和我们通常奖项对应如下:可以看出MCM比ICM的获奖比例高一些,这是因为2021年MCM题目的B和C比较难,大家普遍选ICM问题尤其是F题的的队伍比较多,所以获奖难度就大了一些。
这点说明,大家不要忙着往“简单”的选,反而可能获奖难度会增大。
还是切合队伍三人的能力,选合适的问题,而不能一味追求容易。
补充一点,如果你可以拿到O奖,那么你还可能会遇到冠名奖,甚至有极个别的F奖也拿到了冠名奖,冠名奖大概有六七种吧,官网都有介绍。
我拿到的是美国工业与应用数学学会奖,这个当然就是美国工业与应用数学学会设置的,每题1个,一共六个。
还有一个是弗兰克乔丹诺奖,这是为了表达对美赛执教20年的教授而设置的,颁发给MCM的唯一一支队伍,当然还有一些其他的比如COMAP等等,其实这些冠名奖是我们看到美赛证书的时候才去了解的hhh。
经常会有学弟学妹们问我,有没有好的队友推荐啊之类的,但其实这个还需要自己去努力寻找,随意组队是会出现问题的,下面我通过几个问题来向大家展示三个人应该有怎样的配合。
正确写作美国大学生数学建模竞赛论文
1)、鉴别阶段: (10分钟)
所有论文在此阶段按其质量分别归入一下三类:第一类 是可以进入下一评审阶段的论文(略少于二分之一);第二类 是满足竞赛要求,但不足以进入下一评审阶段的论文(这一类 就被定为合格论文);第三类是不符合竞赛要求的论文(不合 格论文)。 由于在第一阶段中,评委只有10分钟左右的时间评审一 篇论文,因此评委常常只能通过阅读摘要来判断论文水平的高 低。
例如,2010年MCM竞赛中有一道赛题,要求参赛小 组根据以往的作案地点预测连环犯罪的位置。
3.1)、假设条件和解释 解答这道赛题的重点是犯罪活动方式。在一篇题为 “Centroids, Clusters, and Crime: Anchoring the Geographic Profiles of Serial Criminals”的论文中,有一条假设是“罪犯 的活动不受限制”,但罪犯是在市区的活动,实际上会受 到街道的布局及街道两旁建筑物的限制。由于街道布局通 常类似于网格,所以参赛小组对这个假设做了如下解释: Criminal’s movement is unconstrained. Because of the difficulty of finding real-world distance data, we invoke the „Manhattan assumption‟: There are enough streets and sidewalks in a sufficiently grid-like pattern that movements along real-world movement routes is the same as „straight-line‟ movement in a space discretized into city blocks…
美赛论文格式及注意事项
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Please keep this in mind when designing your figures and tables etc.IntroductionAll manuscripts must be in English. Please keep a second copy of your manuscript in your office (just in case anything gets lost in the mail). When receiving the manuscript, we assume that the corresponding authors grant us the copyright to use the manuscript for the book or journal in question. Should authors use tables or figures from other Publications, they must ask the corresponding publishers to grant them the right to publish this material in their paper.Use italic for emphasizing a word or phrase. Do not use boldface typing or capital letters except for section headings (cf. remarks on section headings, below). Use a laser printer, not a matrix dot printer.Organization of the TextSection Headings. The section headings are in boldface capital and lowercase letters. Second level headings are typed as part of the succeeding paragraph (like the subsection heading of this paragraph).Page Numbers. 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If TTP is required to scan and insert images, please keep the following points in mind:(a) the allotted space (for inserting illustrations) must exactly match the space made available in the camera-ready version, so that the electronic version is identical to the hard copy with regard to page and line breaks.(b) the required positioning of any high-quality separate illustration must be clearly indicated on its reverse side. The size of the illustrations must exactly match the space left in the camera-ready manuscript.Equations. Equations (refer with: Eq. 1, Eq. 2, ...) should be indented 5 mm (0.2").There should be one line of space above the equation and one line of space below itbefore the text continues. The equations have to be numbered sequentially, and the number put in parentheses at the right-hand edge of the text. Equations should bepunctuated as if they were an ordinary part of the text. Punctuation appears after theequation but before the equation number, e.g.c2 = a2 + b2. (1)Literature ReferencesReferences are cited in the text just by square brackets [1]. (If square brackets are not available, slashes may be used instead, e.g. /2/.) Two or more references at a time may be put in one set of brackets [3,4]. The references are to be numbered in the order in which they are cited in the text and are to be listed at the end of the contribution under a heading References, see our example below.SummaryOn your floppy disk, please indicate the format and word processor used. Please also provide your phone number, fax number and e-mail address for rapid communication with the publisher (will not be published). Please always send your disk along with a hard copy that must match the disk's content exactly. If you follow the foregoing, your paper will conform to the requirements of the publisher and facilitate a problem-free publication process.References[1] Dj.M. Maric, P.F. Meier and S.K. Estreicher: Mater. Sci. Forum Vol. 83-87 (1992), p. 119[2] M.A. Green: High Efficiency Silicon Solar Cells (Trans Tech Publications, Switzerland 1987).。
2022年美赛C题论文
2022年美赛C题论文基于相关性分析及线性规划下的交易策略的最优问题本文针对每日价格流来确定交易员是否应该购买、持有或出售其投资组合中的资产问题,主要通过建立具有不同投资项目的未来产值预测模型及其损失定量分析和敏感性评价模型,以此来对美国的黄金、现金、比特币三种投资进行组合并评价其未来的价值。
对于问题 1 中对美国的黄金和比特币的价值年变化特征进行相关分析,筛选出价值变化较高的年份以及对美国 2021 年的 10月 9 日进行具体的定量分析,这里选取美国 2016 年不同短历时黄金和比特币资料,采用频率分析、小波分析和极值分析等方法, 揭示了美国市场投资的演变规律,之后我们对于 2021 年的具体数据通过上述方法进行了具体分析。
选取价值变化趋势、中位数、成本、回报率等作为分析因素,确定各因素影响权重,从而确定现金、比特币和黄金的持有率,以达到最优的投资结果。
对于问题 2 评价模型的敏感性,根据五项指标数据,同时参照第一问求解得到的各指标对排名的的贡献度,我们综合考虑各种因素,对投资回报的指标进行赋值。
结合中国的各项数据,我们将估值水平,也就是总价值从 0 至 10 划分为十个不同的层次阶段,0-1 阶段为一等高价值,其余水平依次类推。
采用二次多项式拟合提取黄金、比特币的趋势分量,采用谐波分析法提取的周期成分,利用线性回归模型求解随机成分,最后将三者叠加,构建了各投资项目的预报模型。
模型计算结果与实测数据对比可知,应用预报模型对投资回报进行预报精度较高。
一、问题重述 1.1 背景资料市场交易员经常买卖波动性资产,其目标是使其总回报最大化。
每一次买卖通常都有一笔佣金。
其中两种资产是黄金和比特币。
1.2 需要解决的问题交易员要求开发一个模型,该模型仅使用迄今为止过去的每日价格流来确定交易员每天是否应该购买、持有或出售其投资组合中的资产。
二、问题分析2.1 问题 1 的分析通过对比美国的黄金和比特币的价值年变化特征进行分析,发现无论是黄金还是比特币,每日的资金流都处于波动之中。
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摘要:第一段:写论文解决什么问题1.问题的重述a. 介绍重点词开头:例1:“Hand move” irrigation, a cheap but labor-intensive system used on small farms, consists of a movable pipe with sprinkler on top that can be attached to a stationary main.例2:……is a real-life common phenomenon with many complexities.例3:An (effective plan) is crucial to………b. 直接指出问题:例 1:We find the optimal number of tollbooths in a highway toll-plaza for a given number of highway lanes: the number of tollbooths that minimizes average delay experienced by cars.例2:A brand-new university needs to balance the cost of information technology security measures with the potential cost of attacks on its systems.例3:We determine the number of sprinklers to use by analyzing theenergy and motion of water in the pipe and examining the engineering parameters of sprinklers available in the market.例4: After mathematically analyzing the …… problem, our modeling group would like to pres ent our conclusions, strategies, (and recommendations )to the …….例5:Our goal is... that (minimizes the time )……….2.解决这个问题的伟大意义反面说明。
如果没有……Without implementing defensive measure, the university is exposed to an expected loss of $8.9 million per year.3.总的解决概述a.通过什么方法解决什么问题例:We address the problem of optimizing amusement parkenjoyment through distributing Quick Passes (QP), reservation slips that ideally allow an individual to spend less time waiting in line.b.实际问题转化为数学模型例1 We formulate the problem asa network flow in which vertices are the locations of escorts and wheelchair passengers.例2 : A naïve strategy would be to employ the minimum number of escorts to guarantee that all passengers reach their gates on time.c.将问题分阶段考虑例3:We divide the jump into three phases: flying through the air, punching through the stack, and landing on the ground.第二、三段:具体分析1.在什么模型中/ 建立了什么模型a. 主流模型例1:We formulate a differential model to account for the rates of change of these uses, and how this change would affect the overall consumption of water within the studied region.例2:We examined the mathematical effects of……. We developed a detailed …… (simulation methodology) to test our ideas and to quantify the differences between (among) different …… (strategies).例3:Based on (write your basis .such as the theory of supply and demand), we establish a model (such as differential equation system that includes demand, supply).例4:To (write the aims), we establish a criterion (write the criterion).b. 模型非主流例5:We build a model to determine how to lay out the pipe each time the equipment is moved.例6:We determine …………例7:We build a model to determine……….例8:We formulate a model for………By analyzing …and examining…..2.分析模型(使用什么数据,怎么做,一般三句话)a. 写历史数据例1:Using historical data from theUnited States, we determine initial conditions for our model.b. 写计算机模拟例1:this model leads to a computer simulation of catch-can tests of the irrigation system and ……例2:Software packing reaches………by calculating and comparing………..c. 运用数据模拟例1:to ground this model in reality, we incorporate extensive demographic data and run……例2:We fit the modified model to data (such as 1970-2003.). We conclude that (write the last conclude).d. 讲详细分析例1:We physically characterize the system that…例2:We provide a strategy (write the logical strategy).例3:The …model is (efficient, intuitive, and flexible) and could be applied to…例4:To meet the needs of people today without, we establish a criterion of rational(合理的标准) oil allocation(分配).3.总结该模型的结果/得到什么结论a. 说明不是最优但能产生作用例:We show that this strategy is not optimal but can be improved by assigning different numbers……b. 说明如果用这个模型,结果如何例1:If Delta Airlines were to utilize the naïve strategy atAtlantaInternationalAirport, the cost would be ……例2:We modify the model to reflect (some trend such as exponentially increasing……) and generalize the model to (other field).例3:Our results are summarized in the formula for the optimal number Bof tollbooths forc.通过其上情况的列举得到的结论例:For various situations, we propose an optimal solution.d. 得出了结论例1:we elicit that a conclusion.例2:We conclude with a series of recommendations for how best to…e.进一步说明其他因素对模型的影响例:In addition to the model, we also discuss policies for …..f.用真实数据检验模型例:To demonstrate how our model works, we apply it to ………..最后一段:写总的结论a. 说明结论的可行性例:Our suggested solution, which is easy to implement, includes a detailed timetable and the arrangement of pipes.b.说明算法的广泛性例1:Our algorithm is broad enough to accommodate various airport concourses, flight schedules, and flight delays.例2:Our analysis be gan by determining what factor impact……, Our conclusions are presented……c.说明模型可用于其他领域例:Since our model is based on…… it can be applied to (other domain).其他(承上启下的连接词/常用词组)例:In addition to the model, we also discuss……引言部分(1)回顾研究背景,常用词汇有review, summarize, present, outline, describe等(2)说明写作目的,常用词汇有purpose, attempt, aim等,另外还可以用动词不定式充当目的状语来表达(3)介绍论文的重点内容或研究范围,常用词汇有study, present, include, focus, emphasize, emphasis, attention等方法部分(1)介绍研究或试验过程,常用词汇有test study, investigate, examine, experiment, discuss, consider, analyze, analysis等(2)说明研究或试验方法,常用词汇有measure, estimate, calculate等(3)介绍应用、用途,常用词汇有等结果部分(1)展示研究结果,常用词汇有show, result, present等(2)介绍结论,常用词汇有summary, introduce, conclude等讨论部分(1)陈述论文的论点和作者的观点,常用词汇有suggest, repot, present, expect, describe等(2)说明论证,常用词汇有等support, provide, indicate, identify, find, demonstrate, confirm, clarify(3)推荐和建议,常用词汇有suggest, suggestion, recommend, recommendation, propose, necessity, necessary, expect等。