美赛2015_ICM_Problem_C

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美赛规则说明及注意事项

美赛规则说明及注意事项

BEFORE THE CONTEST BEGINS
Choose your team members Registration
All teams must be registered before 2PM EST on Thursday, February 4 2015. COMAP will not accept late registrations for MCM/ICM 2015 under any circumstances. NO EXCEPTIONSWILL BE MADE.
2014 MCM Statistics
6755teams participated 391 US Teams (6%) 6364 Foreign Teams (94%) 13 Outstanding Winners (1%) 12 Finalist Winners (1%) 656 Meritorious Winners (9%) 2168 Honorable Mentions (31%) 3891 Successful Participants (57%) 15 Unsuccessful Participants (1%)
MCM
The Mathematical Contest in Modeling (MCM), hold its 31th annual competition in February 2015. 6755 teams 17 countries participated in 2014. designed to stimulate and improve problem-solving and writing skills in mathematics. Students participate as team members rather than as individuals, creating an environment for sharing knowledge and skills.

2015年美赛题目翻译

2015年美赛题目翻译

PROBLEM A: Eradicating EbolaThe world medical association has announced that their new medication could stop Ebola and cure patients whose disease is not advanced. Build a realistic, sensible, and useful model that considers not only the spread of the disease, the quantity of the medicine needed, possible feasible delivery systems (sending the medicine to where it is needed), (geographical) locations of delivery, speed of manufacturing of the vaccine or drug, but also any other critical factors your team considers necessary as part of the model to optimize the eradication of Ebola, or at least its current strain. In addition to your modeling approach for the contest, prepare a 1-2 page non-technical letter for the world medical association to use in their announcement.题目一:根除埃博拉世界医学会宣称他们的新疗法可以阻止埃博拉疫情并治愈病情没有恶化的病人。

2017年美赛题目

2017年美赛题目

2017年美赛题目2017年美赛(MCM/ICM)共有6个题目,分别是:1. Problem A: The Art of Archery.这个问题涉及到弓箭射击的技术和策略。

要求团队通过建立数学模型,分析射击的精度和效率,并给出最佳的射击策略。

2. Problem B: The Search for the Lost Dutchman's Gold Mine.这个问题要求团队通过模拟和优化算法,规划一次寻找失落的荷兰人金矿的探险。

团队需要考虑资源分配、路线选择和风险评估等因素。

3. Problem C: The Great American Potato Chip Factory.这个问题要求团队分析和优化一个薯片工厂的生产过程。

团队需要考虑原材料采购、生产调度和产品分配等方面,以提高工厂的效率和利润。

4. Problem D: The Mathematics of Music.这个问题要求团队通过数学模型和计算方法,分析和优化音乐的和声和旋律结构。

团队需要考虑音乐的音高、音长和节奏等因素,并给出最佳的音乐创作建议。

5. Problem E: The Internet of Things.这个问题要求团队分析和优化物联网中的传感器网络。

团队需要考虑传感器的部署、数据传输和能源管理等问题,以提高网络的覆盖范围和性能。

6. Problem F: The Impacts of Tourism.这个问题要求团队通过建立模型,分析旅游业对一个地区的经济、环境和社会影响。

团队需要考虑游客数量、旅游收入和环境保护等因素,并给出合理的政策建议。

以上是2017年美赛的题目概述,每个题目都涉及不同的领域和问题,需要团队综合运用数学建模、数据分析和优化方法来解决。

2015年美赛C题翻译

2015年美赛C题翻译
6. 你的上司把这种对于人力的管理叫做“团队科学”。她给你提供以下资料作为参考:
E. Salas, N.J. Cooke, and M.A. Rosen. (2008). On Teams, Teamwork, and Team Performance: Discoveries and Developments. Human Factors: The Journal of the Human Factors and Ergonomics Society June 2008 vol. 50 no. 3 540-547.D.
3.人力资源问题就是尽可能地把员工安排到最正确合适的岗位上,利用他所掌握的知识和 技能来发挥他的最大优势。目前每个员工都会获得一个基于他们自身表现的年度评估,而 这些评估一般是主管决定的。但这些评级目前不适用于人力资源办公室。
4. ICM 集团意识到,中层干部(初级经理、有经验的主管、无经验的主管)经常会感到很 少有升职的机会因而觉得职位到了瓶颈,这样如果他们找到了一个相近或更好的工作就很 可能会跳槽。这些中层职位往往都有很高的人事变动率(大概是其他职位的两倍),并且 随时都需要补充。
5. 招聘高素质的员工是有难度的,而且费时费钱。在任何时候 ICM 集团的 370 个岗位中 经常只有 85%是满的,由于管理的延迟、办公室的容量以及内部晋升等种种原因。人力资 源部正在积极地招聘总岗位的 8%-10%员工(也就是大概空缺职位的三分之二)。 6. 为了晋升到更高的职位,员工需要先在特定的职位上积累几年的工作经验。这也构成了 人力资源部的主要障碍。 7. 员工流失率一直在稳步增长,特别对于中层经理。ICM 集团的人力资源部把这一点视为 公司面临的最大挑战。首席执行官(CEO)当听到现在的流失率达到了每年 18%时表示很 惊恐。 8. 因为 ICM 集团很担心人手不足,所以一些勉强合格和不合格的员工都被招入进行试用 期,以此来降低员工流失率,这样很少有员工被解雇。但这也就导致了一些低水平的员工 经常会一直在公司里。员工水平问题(部分员工水平低下)已经引起了管理层的重视,但 是现在还没有一个人给出确切的解决方案。 9. 你的机构一直以良好的 CEO-员工工资比引以为傲。(CEO 的工资到是所有员工工资中 位数的 10 倍,而其他很多公司这一比率会达到几百倍以上)

2015美赛D题获一等奖论文

2015美赛D题获一等奖论文

Team # 35630
Page 2 of 19
Contents
I. Introduction....................................................................................................................................3 1.1 Problem Background.............................................................................................................3 II. Symbols, Definitions and Assumptions...................................................................................... 3 2.1 Symbols and Definitions....................................................................................................... 3 2.2 General Assumptions............................................................................................................ 4 III. Articulate our metrics................................................................................................................ 4 3.1 Collect data............................................................................................................................4 3.2 Preprocess data......................................................................................................................6 IV. Task 1:Judging a sustainable country....................................................................................... 7 4.1 Model I: Grey Relation Grade Analysis................................................................................7 4.1.1 Obtain the index weight............................................................................................. 7 4.1.2 Results & analysis...................................................................................................... 8 4.2 Model II: K-means Clustering Analysis............................................................................... 9 4.2.1 Modeling step.............................................................................................................9 4.2.2 Results & analysis...................................................................................................... 9 4.3 Model III: RBF&BP neural network.................................................................................. 10 4.3.1 Enlarge the amount of data...................................................................................... 11 4.3.2 Forecast the score..................................................................................................... 11 V. Task 2:A sustainable development plan....................................................................................12 5.1 First stage............................................................................................................................ 13 5.2 Second stage........................................................................................................................14 5.3 Third stage...........................................................................................................................15 VI. Task 3:The additional environmental factors’ influence...................................................... 15 VII .Task4:The Strengths and Weakness......................................................................................18 7.1 Strengths:..........................................................................................................................18 7.2 Weaknesses:.........................................................................................................................18 VIII.References................................................................................................................................19

2015年MCM美赛题目及翻译

2015年MCM美赛题目及翻译

PROBLEM A: Eradicating(根除)EbolaThe world medical association has announced that their new medication could stop Ebola and cure patients whose disease is not advanced(晚期的). Build a realistic, sensible, and useful model that considers not only the spread of the disease, the quantity of the medicine needed, possible feasible (可行的)delivery systems, locations of delivery, speed of manufacturing of the vaccine or drug, but also any other critical factors your team considers necessary as part of the model to optimize the eradication of Ebola, or at least its current strain(压力). In addition to your modeling approach for the contest, prepare a 1-2 page non-technical letter for the world medical association to use in their announcement.PROBLEM B: Searching for a lost planeRecall the lost Malaysian flight MH370. Build a generic(一般的)mathematical model that could assist "searchers" in planning a useful search for a lost plane feared to(恐怕) have crashed in open water such as the Atlantic, Pacific, Indian, Southern, or Arctic Ocean while flying from Point A to Point B. Assume that there are no signals from the downed (坠落的) plane. Your model should recognize that there are many different types of planes for which we might be searching and that there are many different types of search planes, often using different electronics or sensors. Additionally, prepare a 1-2 page non-technical paper for the airlines to use in their press conferences concerning their plan for future searches.。

2015年美国(国际)大学生数学建模竞赛

比赛时间:美国东部时间:2015年2月5日(星期四)下午8点-2月9日下午8点(共4天)北京时间:2015年2月6日(星期五)上午9点-2月10日上午9点农历:十二月十八~十二月廿二重要说明:●COMAP是所有的规则和政策的最后仲裁者,对不遵循竞赛规则和程序的任何队伍,拥有唯一的自由裁量权,取消参赛资格或拒绝登记。

●评委、竞赛组织者、以及UMAP杂志的编辑拥有最终裁定权。

●如果参赛队伍违反竞赛规则,其指导老师一年内将不能指导其他团队,其所在参赛单位将被处以一年的察看处理。

●如果同一机构第二次被抓到违反规则的队伍,该学校将至少不被允许参加下一年度的赛事。

●以下所有时间都是美国东部时间EST(北京时间比美国东部时间早13个小时)●递交参赛论文后,意味参赛者同意以下条款:⏹论文提交后,出版权归COMAP, Inc所有;⏹COMAP可以使用,编辑,引用和出版论文,用于宣传或任何其他目的,包括在线展示,出版电子版,在UMAP杂志刊登或其他方式,并且没有任何形式的补偿;⏹COMAP可以在没有进一步的通知,许可,或补偿的情形下,使用这次比赛相关材料,团队成员、指导老师的名字,以及和他们的背景资料。

●递交参赛论文后,意味参赛者作出以下承诺:⏹论文中出现的所有的图像,数据,照片,图表,图画,如果未注明,都是由参赛者创建;如果引用其它资源,都在参考文献中列出,并在引用的具体位置标注来源。

⏹不论是直接,还是转述方式的文字引用,都在参考文献中列出,并在引用的具体位置标注来源;直接的文字引用使用引号标注。

比赛之前注册报名1.报名截至时间:2015年2月5日下午2:00 EST。

截止日期后,注册系统将自动关闭,不再接受任何新的注册,没有例外。

2.每支参赛队伍都必须有一位来自参赛机构(institute)的教师担任导师(faculty advisor),不允许学生担任导师。

由指导老师负责为其指导队伍注册报名,每位指导老师可注册的队伍数目没有限制。

建模美赛C题带翻译

Problem C: “Cooperate and navigate”Traffic capacity is limited in many regions of the United States due to the number of lanes of roads. For example, in the Greater Seattle area drivers experience long delays during peak traffic hours because the volume of traffic exceeds the designed capacity of the road networks. This is particularly pronounced on Interstates 5, 90, and 405, as well as State Route 520, the roads of particular interest for this problem.Self-driving, cooperating cars have been proposed as a solution to increase capacity of highways without increasing number of lanes or roads. The behavior of these cars interacting with the existing traffic flow and each other is not well understood at this point.The Governor of the state of Washington has asked for analysis of the effects of allowing self-driving, cooperating cars on the roads listed above in Thurston, Pierce, King, and Snohomish counties. (See the provided map and Excel spreadsheet). In particular, how do the effects change as the percentage of self-driving cars increases from 10% to 50% to 90%? Do equilibria exist? Is there a tipping point where performance changes markedly? Under what conditions, if any, should lanes be dedicated to these cars? Does your analysis of your model suggest any other policy changes?Your answer should include a model of the effects on traffic flow of the number of lanes, peak and/or average traffic volume, and percentage of vehicles using self-driving, cooperating systems. Your model should address cooperation between self-driving cars as well as the interaction between self- driving and non-self-driving vehicles. Your model should then be applied to the data for the roads of interest, provided in the attached Excel spreadsheet.Your MCM submission should consist of a 1 page Summary Sheet, a 1-2 page letter to the Governor’s office, and your solution (not to exceed 20 pages) for a maximum of 23 pages. Note: The appendix and references do not count toward the 23 page limit. Some useful background information:On average, 8% of the daily traffic volume occurs during peak travel hours.•The nominal speed limit for all these roads is 60 miles per hour.•Mileposts are numbered from south to north, and west to east.•Lane widths are the standard 12 feet.•Highway 90 is classified as a state route until it intersects Interstate 5.•In case of any conflict between the data provided in this problem and any other source, use the data provided in this problem.Definitions:milepost: A marker on the road that measures distance in miles from either the start of the route or astate boundary.average daily traffic: The average number of cars per day driving on the road.interstate: A limited access highway, part of a national system.state route: A state highway that may or may not be limited access.route ID: The number of the highway.increasing direction: Northbound for N-S roads, Eastbound for E-W roads.decreasing direction: Southbound for N-S roads, Westbound for E-W roads.问题C:“合作和导航”由于道路的数量,美国许多地区的交通容量有限。

大学生数学建模竞赛介绍

2015 MCM&ICM Problems • Problem A:Eradicating Ebola • Problem B:Searching for a lost plane • Problem C:Managing Human Capital in Organizations • Problem D:Is it sustainable?
• 数学建模竞赛 强度大,综合素质提高
• 数学建模 思想进化,能力提高
数学建模的应用
• 名画的保存 • 油画的识别 • 博物馆的安全
数学建模论文基本格式 -1
大学生数学建模竞赛介绍
全国大学生数学建模竞赛
• 全国大学生数学建模竞赛创办于1992年79所院校的314 队参加 ,每年一届,目前已成为全国高校规模最大的 基础性学科竞赛,也是世界上规模最大的数学建模竞赛。
竞赛主办单位及合作机构 主办: 中国工业与应用数学学会
合作伙伴及独家冠名赞助商: 高等教育出版社
1 深圳杯数学建模夏令营 2 华南泰迪杯全国大学生数据挖掘竞赛 3 MathorCup全球数学建模挑战赛联赛 4 数学中国数学建模网络挑战赛
2014全国数学建模竞赛题目 2015美国数学建模竞赛题目
2014全国数学建模竞赛题目 A题 嫦娥三号软着陆轨道设计与控制策略 B题 创意平板折叠桌 C题 生猪养殖场的经营管理 D题 储药柜的设计
全国大学生数学建模竞赛
• 高等教育出版社从2002年起冠名赞助全国大学生 数学建模竞赛,并在竞赛中设立“高教社杯” (每年竞赛本科组、专科组各一个队)
• MathWorks公司2009年起赞助全国大学生数学建模 竞赛,并在竞赛中设立Matlab创新奖(每年竞赛 本科组、专科组各一个队)

2015年美赛数学建模题目

2015 Contest ProblemsMCM PROBLEMSPROBLEM A: Eradicating EbolaThe world medical association has announced that their new medication could stop Ebola and cure patients whose disease is not advanced. Build a realistic, sensible, and useful model that considers not only the spread of the disease, the quantity of the medicine needed, possible feasible delivery systems, locations of delivery, speed of manufacturing of the vaccine or drug, but also any other critical factors your team considers necessary as part of the model to optimize the eradication of Ebola, or at least its current strain. In addition to your modeling approach for the contest, prepare a 1-2 page non-technical letter for the world medical association to use in their announcement.PROBLEM B: Searching for a lost planeRecall the lost Malaysian flight MH370. Build a generic mathematical model that could assist "searchers" in planning a useful search for a lost plane feared to have crashed in open water such as the Atlantic, Pacific, Indian, Southern, or Arctic Ocean while flying from Point A to Point B. Assume that there are no signals from the downed plane. Your model should recognize that there are many different types of planes for which we might be searching and that there are many different types of search planes, often using different electronics or sensors. Additionally, prepare a 1-2 page non-technical paper for the airlines to use in their press conferences concerning their plan for future searches.ICM PROBLEMSPROBLEM C: Managing Human Capital in OrganizationsClick the title below to download a PDF of the 2015 ICM Problem C.Your ICM submission should consist of a 1 page Summary Sheet and your solution cannot exceed 20 pages for a maximum of 21 pages.Managing Human Capital in OrganizationsPROBLEM D: Is it sustainable?Click the title below to download a PDF of the 2015 ICM Problem D.Your ICM submission should consist of a 1 page Summary Sheet and your solution cannot exceed 20 pages for a maximum of 21 pages.Is it sustainable?。

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2015 ICMProblem CManaging Human Capital in OrganizationsBuilding an organization filled with good, talented, well-trained people is one of the keys to success. But to do this, an organization needs to do more than recruit and hire the best candidates – they also need to retain good people, keep them properly trained and placed in proper positions, and eventually target new hires to replace those leaving the organization. Individuals play unique roles within their organizations, both formally and informally. Thus, the departure of individuals from an organization leaves important informational and functional components missing that need to be replaced. This is true for sports teams, commercial companies, schools and universities, governments, and almost any formal group or organization of people.Human resource (HR) specialists help senior leadership manage personnel by improving retention and motivation, coordinating training, and building good teams. In particular, leaders seek to create an effective organizational structure, where people are assigned to positions appropriate to their talents and experience, and where efficient communication systems are in place to facilitate development of innovative ideas and quality products (commodities or services). These talent management and team building aspects of HR management are remaking many modern organizations.Managing the fluid network of human capital within an organization requires understanding personnel loyalties to the company and to subgroups; building trust in the workplace; and managing the formation, dissolution and retention of formal and informal ties between people. When people leaving for other jobs or retiring are replaced, the resulting turbulence is collectively termed organizational “churn”. Your team has been asked by your HR manager to develop a framework and model for understanding churn within the Information Cooperative Manufacturing (ICM) organization of 370 people. ICM is in a highly competitive market place, leading to challenging issues related to effectively managing its human capital.The HR manager wants to map the human capital in the organization by building a network model. Here are some issues your company faces:1. ICM aims to identify the risk of churn in its early stages, as it is cheaper to gainthe loyalty of an employee early in their carreer rather than have to improve theculture once it has soured. It is more productive to have a motivated workforcefrom the start rather than having to provide incentives to prevent people fromleaving.2. A worker is more likely to churn if he or she was connected to other formeremployees who have churned. Thus churn seems to diffuse from employee to employee, so identifying those that are likely to churn is valuable information to prevent further churning.3. One HR issue is matching employees to the right position such that theirknowledge and abilities can be maximized. Currently each employee gets an annual evaluation based on performance as judged by the supervisor. These ratings are currently not used by the HR office.4. ICM recognizes that middle managers (Junior Managers, ExperiencedSupervisors, Inexperienced Supervisors) often feel stuck in their jobs with little opportunity to advance, causing them to leave the company when they find a comparable or better job. These mid-level positions are critical ones thatunfortunately suffer high turn-over (twice the average rate of the rest of thecompany) and seem to need filling all the time.5. Recruiting good people is difficult, time consuming and expensive. ICM usuallyhas only 85% of its 370 positions filled at any time and, because of administrative delays and office capacity and internal promotions, the HR office is actively hiring about 8-10% of the ICM positions (about 2/3 of the current vacancies).6. In order to move up into the higher management-level positions, people arecurrently required to have several years of experience in the company at specific levels and types of positions. This can pose major obstacles for the HRdepartment.7. The churn rate has been increasing steadily, especially for middle managers.The ICM HR manager sees this as the biggest challenge the company faces.The CEO panicked when hearing that the current churn rate is 18% per year.8. Because ICM is always worried about being short-handed, marginal and pooremployees are allowed to stay on in an attempt to lower the churn and, therefore, very few employees are relieved or fired. This results in lower quality employees who often stay with the company for a full career. This quality issue is causing concern with the management, but no one seems to have a solution.9. Your organization is proud of its modest CEO-to-worker salary ratio (i.e., theCEO salary is approximately 10 times the median of the salaries of all theemployees in the organization as compared to hundreds of times the median as found in many companies).The ICM HR manager has recently put together a comprehensive organizational graph (Figure 1) and detailed statistics describing the basic structure, staffing, recruiting costs, training costs, and salaries of the company employees (Table 1). The company has never conducted any analyses, modeling or simulation of the HR functions of the company. Therefore, she feels that now is the time to automate and analyze the HRFigure 1: The rigid structure and supervisory nature of ICM comes from the requirement that each branch or staff office with an * consists of two divisions of 7 people. Otherwise, each entry in this chart without an * consists of 4 staff people. Therefore, the 370 total employees are organized in 46 divisions of 7 people and 12 offices of 4 people.Table 1: The HR manager has provided you with this critical HR data on number and level of employees, average salary, the average costs and time of external recruitment for various levels of personnel, and annual training costs. The median income of the company is defined as σ. The value of σ for ICM does rise slowly with the inflation rate so all the decision makers in ICM are comfortable with reports and decisions based on the changing and relative value of σ, instead of exact monetary values.Tasks:The ICM HR department work-tasks and research questions from your HR manager include the following:1) Build a Human Capital network model of ICM organization’s personnel situationusing the data provided. You may have to make bold assumptions to build themodel — be sure to describe the model and your assumptions.2) Use your model to identify dynamic processes within the Human Capital network.Describe and incorporate dynamic processes involved in (1) organizational churn(e.g., influence, dissatisfaction) and (2) direct and indirect effects on theorganization’s productivity. You may have to make some bold assumptions toexplain these processes. Describe your model and all your assumptions.3) Use your model to analyze your organization’s budget requirements for talentmanagement in terms of σ for both recruiting and training over the next 2 years.4) Can ICM sustain its 80% full status for positions if the annual churn rate for allpositions goes to 25%? How about 35%? What are the costs of these higherturnover rates? What are the indirect effects of these high churn rates?5) The ICM HR supervisor wants to use your model to simulate the impact of 30%churn in both junior managers and experienced supervisors with 1) no externalrecruiting and 2) promoting only qualified employees for the next two years.Other churn values should remain at 18% in your model. Explain to her theimpact of that situation on the HR health of the organization.6) Your supervisor calls this kind of talent management — team science. She hasprovided you with these references to start your work:∙ E. Salas, N.J. Cooke, and M.A. Rosen. (2008). On Teams, Teamwork, and Team Performance: Discoveries and Developments. Human Factors: The Journal of theHuman Factors and Ergonomics Society June 2008 vol. 50 no. 3 540-547.∙ D. Stokols, K.L. Hall, B.K. Taylor, R.P. Moser (2008). The Science of Team Science: Overview of the Field and Introduction to the Supplement, Am J Prev Med2008;35(2S): S77-S89.Ultimately, she wants to connect your Human Capital network to otherorganizational network layers such as information flow, trust, influence, andfriendship that the other offices of ICM are considering building. The HRmanager’s vision is that the HR office should take the lead in this effort toconnect the network models of the organization and wants your team to consider how that could happen. For that consideration she provides the referenceMikko Kivelä, Alexandre Arenas, Marc Barthelemy, James P. Gleeson, Yamir Moreno, Mason A. Porter. (2013). Multilayer Networks, J. Complex Netw orks, 2(3): 203-271 (2014); arXiv preprint arXiv:1309.7233, 2013.Summarize the potential use of team science and multi-layered networks infulfilling the vision of your HR manager.7) Write a 20-page report on your organizational model and its function and theissues that the supervisor wants you to consider. The one-page executivesummary of the report does not count; therefore, you can submit a total of 21 pages, maximum.。

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