查询词典 forward selection

In the paper also put forward bit selection way using nerve net and discuss the problem.

论文还提出了用神经网络系统来进行钻头综合选型的构想，并进行了探讨，这个问题还需要今后进一步研究。

Upon this, we forward more deeply: the emergence of the null phenomenon and the removal method of it; the operator selection in Genetic algorithm; improvement of object function and the introduction of the punishment method, etc.

在此基础上，本文进行了深入的专题研究：零空间现象形成的原因及消除方法；遗传算法中选择操作的研究；目标函数的改善，惩罚机制的介入等，并取得了一系列的成果。

By iteratively combining these two procedures we achieve a way of training the configuration of RBFNN. In addition, the algorithm is very robust with respect to the noise level. Simulation experiments show that the proposed algorithms are sound. In chapter 3, which is the extension of chapter 2, the improvements of the architectures of RBFNNs and the solutions of their relating problems are discussed, Firstly, an new distance metric is advanced and a forward orthogonal least square selection procedure is applied to learning the parameters of classification function and selecting the important input nodes.

首先分析了目前存在的同时确定RBFNN结构和参数的方法的缺陷，在此基础上提出了用基于拉马克的进化学说的进化编程算法来改进算法，以克服某些缺陷；然后针对受到严重噪声污染的系统，如何提高RBFNN的泛化能力的问题，利用基于AIC的适应度函数的改进遗传算法学习结构和参数；最后介绍基于MDL原理的方法，将优化网络的结构和参数分为两个阶段：训练和进化，先自适应地改变RBFNN基函数的中心和宽度，同时训练输出线性权值，再用基于MDL原理的适应度函数的标准GA来优化隐层节点，通过交替使用这两过程达到训练RBFNN的结构和参数的目的，该算法具有较强的鲁棒性。

Combined a large number of on -site investigate and survey data of loess area in the north of Shaanxi Province, the paper analyzed the influence factors and interrelationship of slope erosion, then put forward the main influence factors , the peculiarity of outwash destructions the main style and protective measures about slope erosion of highway in loess area. The first: the emphasis about protective measures of cut-slope are the selection of rate of grade, the place of plain stage of slope, the slope protection; the second: the emphases about drainage of cut-slope is the rational installation and mating of drainage establishment; And following this principle: the effective holding up , the rapid obviating, the smooth articulation, the seepage prevention and prevent erosion.

根据陕北黄土地区公路的大量现场调查和实测资料，分析了公路边坡冲蚀的影响因素及其相互关系，提出了黄土地区公路边坡冲蚀的主要影响因素、冲蚀破坏特点、主要类型与防护对策，得出：1、路堑边坡坡面冲蚀防护重点是坡率选择、边坡平台设置、边坡防护；2、路堑边坡排水重点是排水设施的合理设置与配套；并遵循有效拦截、迅速排除、衔接顺畅、防渗防冲等原则。

Presents the suitable materials and size for the capillary decorative panel for heating, based on the experimental data, analyses the thermal performance of this kind of panels, and puts forward the heat release calculation formula and selection method of it.

介绍了毛细管供热饰板材的选材及样本的结构尺寸，结合实验数据分析了毛细管供热饰板材的热工性能，给出了毛细管供热饰板材的散热量计算公式及设计选择方法。

The feature selection algorithm this paper puts forward can be applied to English Text Classification. And we can design more networked, intellectualized, multifunctional classification system, and then apply it to the pop practical application such as email percolator, search engine and so on.

可将本文提出的特征选择方法应用于英文文本分类中，并设计更网络化、智能化、多功能化的分类系统，可以应用到如邮件过滤器或搜索引擎等热门实际应用中去。

The company is using pious soul and sincere service, selection and look forward to your cooperation!

公司全体同仁正在用虔诚的心灵和真诚的服务，企盼您的选择和合作！

Therefore, a transmit antenna selection algorithm based on QR decomposition with column pivoting is put forward, which is easy to compute.

因此，提出了一种基于列主元QR分解的发射天线选择算法，这种算法具有很低计算复杂度。

With introducing the Proportional to Population Size Sampling technique into resample for the problem of specimen reconstruction effectiveness and rationality, a neural network ensemble method based on the PPS technique was proposed, which could improve the accuracy of individual network and the differences among individual networks; and a new dynamic selection approach of individual network in a neural network ensemble was put forward.

针对样本重组的有效性和合理性问题，将PPS抽样技术引入样本重构，提出了基于PPS抽样的集成神经网络算法，以提高个体神经网络的准确性与差异度，并实现动态选择个体神经网络的神经网络集成新方法。

This paper evaluates the performance of the replica selection strategy put forward.

对所提出的副本选择策略在性能上进行了评估。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。