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The relationship between the topology and convegence of networks is approached and the reason causing overtraining and overfitting is analysed. Then the redundant weights and nodes in the network are defined by using improved activity function and a new algorithm called the BPNSO for determining the network structure for any application is proposed, which use dual optimization objective function combining the mean squre error of the network output with network complexity penalty function.

文章对网络拓扑结构与网络收敛性和稳定性的关系进行了探讨，分析了网络出现Overtraining或Overfitting的原因和解决的目标，提出了神经网络结构优化的策略，改进了活化函数，定义了冗余权值和冗余节点的概念，为辨识和删除冗余权值和冗余节点，提出采用优化目标函数中增加网络复杂度罚函数的双重优化目标函数，并对罚因子提出了基于学习误差和权值的自适应动态调整公式，论文定义了这种BP网络结构优化方法为BPNSO，并给出了完整的计算流程。

The variety used depends on the different elasticity and malleability required for each product and the reason why the wheat flour used in many foods cannot be replaced by other starches such as sweet potato flour or cornflour is because neither of these flours contains proteins capable of forming gluten.

许多淀粉类产品中的面粉无法被其他淀粉类如地瓜粉、玉米粉等替代的原因，就是玉米粉、地瓜粉中不含可形成面筋的蛋白质。

IT IS FOR THIS REASON THAT CUTTING OFF THE AVAILABLE SUPPLY OF OXYGEN IS CONSIDERED TO BE THE BEST METHOD OF EXTINGUISHING AN OIL FIRE BY COVERING THE SURFACE WITH FOAM.

因此，使用泡沫覆盖油火表面以隔绝氧气供应是扑熄油火的最佳方法。

The basic reason is that the pulse pressure, produced by the pulse current, affects the nucleation and growth of the alloy.

其主要原因是脉冲电流产生的脉冲压力对晶核的形成和长大产生了影响。

The reason for the cutback is that Ford is being hit hard by the fall in sales of big pick-up trucks and SUVs, where it makes most of its profits.

此次削减的主要原因是，作为利润最高的大皮卡车和运动型多功能车的销量锐减致使福特遭受了重撞。

The reason for the cutback is that Ford is being hit hard by the fall in sales of big pick-up trucks and SUV s, where it makes most of its profits.

此次削减的主要原因是，作为利润最高的大皮卡车和运动型多功能车的销量锐减致使福特遭受了重撞。

Absolutely speaking, the will of God in this matter is discoverable by human reason, but it is explicitly laid down for us in the Ten Commandments, or Decalogue, which furnishes a complete code of ethical conduct.

绝对地讲，上帝的意志在这个问题上是人类发现的原因，但它明确规定了我们在十诫，或十诫，它提供了一个完整的道德行为守则。

The reason for this can be traced back to the chaotic period following the defoliation of Optera by the Masters' newly created clone warriors.

这么做的理由可以追溯到机器人统治者用新建立的克隆人军队攻陷奥普特拉星球之后的混乱时期。

I do not find on television the kind of editorials chronic in the New York tabloids as well as in many local papers across the country where the techniques of demagoguery prevail: Rouse the Rabble by Routing Reason.

在电视上我没有看到那种在纽约的小报上以及全国各地的地方报纸上层出不穷的社论，里面蛊惑伎俩占压倒优势：摧毁理智，煽动混乱。

The main reason which leads to incorrect planar overlap is the wrong layer thickness, while the influence of the incorrect scanning line depth which was induced by the deviation of the scanning parameters was minor.

影响面重叠率不正确的最主要因素为铺层厚度不正确，而扫描参数误差所引起的线变质深度不正确影响甚微。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。