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标题: 2014 CAMCM 评注 B [打印本页]

作者: magic2728 时间: 2014-12-4 23:31
标题: 2014 CAMCM 评注 B
接上一篇来，直接上评注！

Problem B: All-Terrain Camouflage(bk1)

Disruptive coloration is common inmilitary usage, for military vehicles. uniforms of soldiers and equipments.(bk1') Vision is the main sense of orientation inhumans, and the primary function of camouflage is to deceivethe human eye.(bk2) There exists a lot ofmilitary clothing camouflage patterns, to suitthe need to match combat clothing to special kinds of terrain (such aswoodland, snow, and desert).(bk3) Somecamouflage patterns have been designed for use in a wide range of conditions.(bk3') Please build a modelto analyze the low-visibility effect of various patterns, develop aquantitative camouflage effect evaluation methodand design an ideal camouflage textile pattern for most environments.(spm1s)

In addition toyour formatted solution, prepare a one to two page advertising sheet for awebsite highlighting your design and camouflage effect.(mss1)

Analysis:

Shouldwe optimize a lot in this question? No! The emphasis of the problem contributesto evaluation function and the definition of the input quantity.

Let'sunderstand the problem as a function again:

Independent Variable: the so-calledcamouflage pattern is the decision variable included in the independentvariable of the function. If you understand is partly as a optimizationproblem, it is the decision variable. However, change of the environment is theone that we cannot control but important to the results, so it is the parameterin the optimization terms.

Dependent Variable: visibility effect,waiting to get the definition quantitatively and can be calculated easily.

Function: Evaluation of the camouflageeffect. In this sense, choose the point(s) appropriate to be the index ofevaluation scale it and add together to get the evaluation function. Also, thegeneration process of the evaluation function is also the one to get thedependent variable. In other words, For the vague object to be defined, the evaluationprocess of it is both the generation of evaluation function and the object.

In the end, the model asks for a littleoptimization. When parameters get all the possible value, which camouflagepattern is the best, it is simple and nature to use the mean value of allparameters to compare each pattern and get the best one in the end.

As I understand, the evaluation function ofa camouflage pattern to a certain environment is the core of the problem, so itis an evaluation problem. (The evaluation result differs with environment andtit is to say environment is the key parameter of the evaluation function) Ofcourse the design of the pattern is also of significance. It is important todistinguish the parameter and the decision variable of the input of thefunction. In the evaluating function, only the evaluating indices are decisionvariable and all others are parameters. It’s only a little part to optimize itwith the best pattern to all environments because it is so easy.

Nothing to say about the advertising sheet.

Good luck to all of you!

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作者: 梦之翼 时间: 2014-12-5 10:56
中文版在哪里

作者: 小花花swe 时间: 2014-12-5 17:24
如果我们优化了很多这个问题？不！这个问题的重点有助于评价函数和输入量的定义。让我们再次明白这个问题作为一个函数：自变量：所谓的迷彩图案是包含在函数的自变量的决策变量。如果你理解部分是作为一个优化问题，它是决策变量。然而，环境的变化是，我们无法控制的一个，但重要的结果，因此它是在优化条件的参数。因变量：能见度的效果，等待定量获取的定义，并且可以很容易地计算出来。功能：评估的伪装效果。在这个意义上，选择适合于被评价尺度它的索引和相加，以获得评价函数的点（S）。另外，评价函数的生成过程也是一来就获得了因变量。换句话说，对于要确定的模糊对象，它的评价过程是评价函数和对象双方的生成。最后，该模型要求一点优化。当参数得到的所有可能的值，这迷彩图案是最好的，这是简单和自然使用的所有参数的平均值来比较每个模式并获得最佳的一个在末端。据我了解，迷彩图案一定环境的评价功能是问题的核心，所以它是一个评估的问题。（评价结果的不同环境和它是说环境是评价函数的关键参数）当然的图案的设计也是意义。它区分的参数和功能的输入的判定变量是重要的。在评估的功能，只有评估指标是决策变量和所有其他的参数。这只是一小部分，以优化神火最好的方式向所有的环境，因为它是那么容易。没什么可说的广告片。

作者: 小花花swe 时间: 2014-12-5 17:29
Should we optimize a lot in this question? No! The emphasis of the problem contributes to evaluation function and the definition of the input quantity.
Let's understand the problem as a function again:
Independent Variable: the so-called camouflage pattern is the decision variable included in the independent variable of the function. If you understand is partly as a optimization problem, it is the decision variable. However, change of the environment is the one that we cannot control but important to the results, so it is the parameter in the optimization terms.
Dependent Variable: visibility effect,waiting to get the definition quantitatively and can be calculated easily.
Function: Evaluation of the camouflage effect. In this sense, choose the point(s) appropriate to be the index of evaluation scale it and add together to get the evaluation function. Also, the generation process of the evaluation function is also the one to get the dependent variable. In other words, For the vague object to be defined, the evaluation process of it is both the generation of evaluation function and the object.
In the end, the model asks for a little optimization. When parameters get all the possible value, which camouflage pattern is the best, it is simple and nature to use the mean value of all parameters to compare each pattern and get the best one in the end.
As I understand, the evaluation function of a camouflage pattern to a certain environment is the core of the problem, so it is an evaluation problem. (The evaluation result differs with environment and it is to say environment is the key parameter of the evaluation function) Of course the design of the pattern is also of significance. It is important to distinguish the parameter and the decision variable of the input of the function. In the evaluating function, only the evaluating indices are decision variable and all others are parameters. It’s only a little part to optimize itwith the best pattern to all environments because it is so easy.
Nothing to say about the advertising sheet.
Good luck to all of you!

作者: duhoulin2014 时间: 2014-12-8 23:09
优化不是走弯路费事，而是简洁高效

作者: duhoulin2014 时间: 2014-12-8 23:10
优化不是走弯路费事而是简洁高效

作者: aqua2001 时间: 2014-12-10 18:10
写得很好，值得一看。

作者: 张银银 时间: 2014-12-16 08:31
持续关注···写的不错。

作者: 宇仲 时间: 2015-1-16 06:34
好东西啊，收藏了！

作者: ntitmxq 时间: 2015-1-16 11:41
不错的帖子！

作者: 光之仑 时间: 2015-1-23 12:17
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作者: 350924210 时间: 2015-1-31 10:17
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作者: 350924210 时间: 2015-1-31 10:46
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作者: 350924210 时间: 2015-1-31 10:47
前程似锦努力学习展望未来

作者: 小龙虾1994 时间: 2015-1-31 11:41
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作者: angelwzz3917 时间: 2015-2-3 10:15
很棒~~~~~

作者: scutcpl 时间: 2015-2-4 11:16
不知不觉2014年已经过去，崭新的2015年来临了。我们送走了“马上有钱”，迎来了“金羊开泰”。在这佳节到来之际我代表数学中国的全体工作人员恭祝各大院校辛辛学子在新的一年里喜气洋洋，得意洋洋，最重要的是合家“三羊开泰”！

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作者: sunjianqi 时间: 2015-4-25 19:27
好吧，握感觉自己差得好远。。。。

作者: 695374573 时间: 2020-4-18 09:40
感谢分享

作者: 3086659667 时间: 2021-6-9 23:28
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