权重函数

Key words: artificial intelligence; particle swarm optimization; inertia weight; tangent function; arc tangent function

关键 词：人工智能；粒子群算法；惯性权重；正切函数；反正切函数

Firstly, the decision matrix is transformed into an objective matrix, and then the weight of every objective is determined by means of entropy coefficient method. By Integration of experts' knowledge, the acceptable lower bound of degree of satisfaction and acceptable upper one of degree of dissatisfaction of every objective are decided. At last, by using the weight vector and the acceptable lower boun...

首先将决策矩阵转化为目标矩阵，然后利用熵权系数法计算各个目标的权重，综合专家的意见得到对于每个目标可以接受的满意度的下界和不满意度的上界，最后利用得到的权重向量以及得到的满意度的下界和不满意度的上界计算各方案的vague估计值，将得到的vague估计值按照评分函数进行排序，得到方案的排序结果。

Relative merits of different residual used in the construction of objective function and weight coefficient in single objective function for structural model updating are investigated in the paper based on improved genetic algorithm.

研究了基于改进遗传算法对结构模型修正中用于构建目标函数的不同残差的优缺点和单目标函数中的权重系数。

The optimal and worst solutions of each objective function are obtained, and the solution with the earliest start-time under the fewest number is found. A series of noninferior solutions that have the earliest start-time are obtained after increasing the number of selected depots continually. The original model can be converted to search for a solution that has maximum approximation degree of positive-negative perfect point.

分别求出各个目标函数的最优解和最劣解，寻找使出救点个数为最优情况下使应急开始时间最早的解，在此基础上增加出救点的个数继续寻找，并将备选出救点集合缩小为运输时间小于上一次应急开始时间的出救点；得到一系列非劣方案后，对各目标函数按照具体情况赋予一定的权重，将原问题转化为求解使正负理想点接近度最大的非劣调度方案。

It defines the vector norms as satisfaction function to revise the weighting factors of metrics given by analytic hierarchy process. Meanwhile, the scheme exploits vector geometrical relationships in Hilbert sub-space basing on revised weights to measure similarities between vectors of network ability and user target.

该算法定义Hilbert空间中的向量范数表征满意函数，以修正由层次分析法给出的各指标权重因子；并利用基于修正权重因子的Hilbert子空间中向量间的几何关系，衡量网络参考向量与用户目标向量间的相似性，选择与用户需求最匹配的网络。

At the same time, considering the close relationship between splice sites selection and the composition of adjoined sequences,a new kernel, position weight subsequence kernel, is built.

考虑到剪接位点的选取与位点附近的核酸序列有着重要的关联，特别为支持向量机构造了一个新的核函数——位置权重子序列核函数。

In this paper w e derived the optimum form of important function by variation method, with that proposed percepts to improve impor tant function; by utilizing the result of delaminateˉ sample theory, the improving direction of reˉsampling was determine d, and with that the double weight selecting partiˉ cle filtering was proposed.

为解决粒子滤波算法在实际应用中出现的滤波发散、粒子退化问题，文中利用变分法证明了重要性函数取法的最优形式，并由此提出重要性函数的改进方案；利用分层抽样原理，确定了重采样方法的改进方向，并由此提出双权重重采样方法。

Through considering forecast bias, the paper extends theanalysis about diversification e?ect of forecast combination under square loss andfinds the new condition for which simple average weight is optimal weight.

通过考察预测偏差因素，本文拓展了对平方损失函数下组合预测分散化效应的分析，得到了简单平均权重为最优组合预测权重新的条件。

By observing the constructed membership functions, we learn that the human preference is not consistent with equal-weighted, equal-spaced numerical evaluations. Nor is it consistent with simplified, symmetric triangular or trapezoidal membership functions.

由观察所建构的归属函数显示：人类的偏好当转成模糊评估尺度时，与等权重、等间隔的数值评估或对称的简化型归属函数是不一致的。

Secondly, it aimed the research on model and method of railway large-sized passenger terminals emergency capability assessment. It designed the emergency capability assessment index system including the MECE principle during the design. After in-deep studied the hierarchy entropy analysis method to dealing with the weight, it calculated the weights of the emergency capability assessment indexes. And it studied the risk assessment model based on the set-valued statistics and fuzzy comprehensive evaluation model, proposed the emergency capability assessment model based on the risk. During the research on the fuzzy comprehensive evaluation model, the paper improved the circular distribution subordinate function to calculate the index membership.

其次，对铁路大型客运枢纽站突发事件应急能力评价的模型和方法进行了研究，建立了应急能力评价指标体系，提出了MECE评价指标设计原则；深入研究了确定指标权重的层次熵分析法，并计算出了铁路大型客运枢纽站突发事件应急能力评价指标权重；构建了集集值统计风险评价模型和模糊综合评价模型于一体的风险应急能力评价模型，并在模糊综合评价研究中，改进了确定单指标隶属度的圆形分布隶属函数法。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。