计算出
- 与 计算出 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The example are also given to show that the two Expect Bayes estimation formula are both steady and the precision of Expect Bayes estimation of the reliability for geometric distribution under the entropy loss function is higher than that of the square loss function.
通过实例验证,在熵损失函数下计算出的几何分布可靠度的多层Bayes估计是稳健的,并进一步表明在熵损失函数下计算出的几何分布可靠度的多层Bayes估计值比其在平方损失函数下算出的结果精度更高。
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In this paper, fuzzy theory, Markov chain and RFM model are integrated to evaluate customer lifetime values. This approach calculates the profit contribution of customers in every purchasing situation. Firstly, customer purchasing state is updated contiguously by fuzzy theory and RFM model with transition matrix which represents the probabilities among purchasing states. Then the profit contribution of each period is computed by using revenue and cost data. Finally, the profit contribution of each customer is accumulated through some discounting consideration. This will construct the final customer lifetime values.
本研究结合模糊理论、马可夫链、和RFM(recency, frequency, monetary; RFM)模式,配合折现模式来计算顾客终身价值,其中模糊理论及RFM模型定义顾客之购买状态,马可夫链则推算顾客在每期购买状态改变的机率,然后推估出顾客在每期交易的转换机率,再结合产品的收益与成本资料,算出顾客在各期对公司的利润贡献,最后将各期的利润贡献折现加总,计算出各种购买状况下的顾客价值,利用此顾客价值就可指出哪些是对企业有利的顾客。
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It can get the three-dimensional profile of the object surface effectively. Because of the cragginess of the three-dimensional surface when sine grating is projected the image of the sine grating is modulated and the modulated image is taken by a CCD camera with an angel compared to projecting direction. After the phase shift measuring method, the phase is gotten. Because the phase is calculated by the phase shift measuring ranges from –π to +π it isn't continuous. The phase unwrapping is necessary to recover the continuous phase about the object shape.
这种方法采用结构光照明,将正弦光栅图像投影到被测物体表面,用与投影方向成一定角度的CCD摄像机获取受物体表面面形调制的变形光栅像,根据数字相移算法计算出相位分布,由于从相移计算的相位被截断在反三角函数的主值范围内,因而是不连续的,必须通过相位展开恢复出连续相位分布,由相位-高度关系最终求出物体轮廓的三维数据信息。
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First, select four kinds of main risks source from bigly celebrate the main risk in region source, namely the flood, drought, sand-dust weather and petroleum pollution accident, etc. According to the different a request for to habitat, study this 19 kinds of landscapes ecosystem type of the Regional induce for 7 kinds of ecosystems system: Then the marsh of bulrush, lakes and reservoirs , salt alkali wasteland, prairie, island form wood, farmland, town. The difference is proceeded by characteristic according to each type ecosystem to the analysis of four kinds of main risks source, including the certain risk all rate, delimiting the space distribute, analyzing the risk strength to the receptor etc. At proceed the revelation the different from endanger to analyze the inside, this text borrows ecosystem index number that this index sign to reflect primarily habitat the ecosystem meaning of the type of habitat the different from position, with weak an index number to show the destructibility of the habitat, from but compute each ecosystem that is lost by ecosystem system an index number.
首先,从大庆地区主要的风险源中遴选出四种主要的风险源,即洪涝、干旱、沙尘天气和石油污染等;依据不同生物类群对生境的要求,将本研究区域的19种景观生态类型归纳为7种生态系统:即芦苇沼泽、湖泡库渠、盐碱荒地、草甸草原、岛状林、农田、城镇;对四种主要风险源的进行分析,包括确定风险概率,划定空间分布,对风险受体的作用强度分析等;在进行暴露和危害分析中,本文主要借生态指数这一指标来反映不同生境类型的生态意义和地位,以脆弱度指数来体现不同生境的易损性,从而计算出各受体生态系统的生态损失度指数;由于各主要风险物质对风险受体的作用强度是不同的,对形成区域性生态风险的作用大小也有差异,因此本文采用层次分析法对主要生态风险物质进行综合评价,并把判断矩阵排序权值的合理计算问题归为—非线性化问题,并提出用基于遗传算法(GA[5])的层次分析模型进行权重分析;进行风险表征,即综合前面两个阶段的信息,对环境中风险的性质和强度以及风险评价过程中不确定性问题进行分析与描述,并划分出五级生态风险区;最后,根据划分的五级生态风险区的特征,分别提出针对各生态风险区的生态风险管理对策。
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This design after determination frame layout, has carried on the level first the load generation of tabular value computation, extracts the wind load with the D value law the function, then uses the bending moment two methods of distribution to calculate the vertical load under the function structure endogenic force, and discovers most disadvantageous group of or a several group of endogenic force combination.
本设计在确定框架布局之后,先进行了层间荷载代表值的计算,用D值法求出风荷载的作用,接着用弯矩二次分配法计算出竖向荷载作用下的结构内力,并找出最不利的一组或几组内力组合。
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This design after determining the frame layout, has carried on the level the first load generation of tabular value computation, extracts the wind load with the D value law the function, then uses the bending moment two methods of distribution to calculate the vertical load under the function structure endogenic force, and discovers most disadvantageous group or a several group of endogenic force combination.
本设计在确定框架布局之后,先进行了层间荷载代表值的计算,用D值法求出风荷载的作用,接着用弯矩二次分配法计算出竖向荷载作用下的结构内力,并找出最不利的一组或几组内力组合。
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Some factors influencing dry-shrinkage factor and hulking factor of CRC plate and the corresponding levels were studied, and some key factors and influencing laws were found through orthogonal experiment. The influence sequence of these key factors and relationship with dry-shrinkage and hulking performance were presented by theoretical analysis.
通过正交试验,对影响GRC平板干缩性能和湿胀性能的诸多因素及其水平进行了优选,分别找出了影响显著的主要因素及其影响规律和机理,通过计算分析,给出各影响因素的主次顺序,计算出干缩性能和湿胀性能与诸因素水平之间的关系。
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Four physical meaning of elementary constant of the universe ; Mirror value of elementary constant of the universe in today ; Root cause of elementary constant of the universe is the information entity of the universe .
给出了今天基本宇宙常数的四个主要物理含义,给出了今天基本宇宙常数镜像数值的计算结果,指出了其物理根源是宇宙信息体的时空数值,并根据这个镜像数值反向计算出了宇宙诸总体物理特性的数值。
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After getting 25 sets of data,we figure up the corrugations on the starting position according to the delay formula,and then pile up these corrugations,at last ,after figuring up the capacity value of each lattice point,we change them into the pixel gray value,and portray them in the 3-dimensional space one by one.
得出25组数据之后,分别根据时延计算公式推算出其起始位置的波形,并将这些波形进行叠加,最后在计算出每个网格点的能量数值之后,将之按比例转化为像素灰度值,在三维空间逐个绘出。
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It was indicated by the CALPHAD that the solute content at the end point of primary solidification changes synchronistically with the start point, solute content in dendritic arm and the partition coefficient increase with the solid fraction. Simple Scheil equation was shown to be able to calculate the eutectic amount on the base of partition coefficient calculated by thermodynamics, its prediction for the different solutes is self--consistent and agreeable with the CALPHAD. The eutectic amount and SDAS was measured in DC experiment and compared to model value, it was shown that the experimental data are in agreement with the model prediction.
相图计算耦合Scheil模型的计算结果显示, Al--Cu--Zn合金单相凝固结束点的溶质含量与凝固初始点的成分同步变化,溶质含量和溶质分凝系数随凝固过程的进行不断增加;在热力学计算出合金分凝系数的基础上,简单Scheil方程可以计算初生相含量,从不同溶质得到的计算结果是自洽的,并与相图计算耦合Scheil模型的预测值一致;实验测定了不同成分铝合金的共晶含量和枝晶间距,实验数据与模型结果基本一致。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。