How to choose a activation function?
怎么选择激活函数呢？
Selection of a good activation function is an important part of the design of a neural network.
一个良好的激活函数的选择是对的神经网络设计的重要组成部分。
The BP algorithm with the variable slope for the sigmoidal activation function accelerates the ANN training dramatically.
应用可变斜率的改进的BP算法，极大地加速神经网络的学习速度。
Had the strong will, the individuality is explicit and stable, the strong will has the activation function to the intelligence factor.
有了坚强的意志，个性才是明确的和稳定的，坚强的意志对智力因素有激活作用。
The transcriptional activation function of GR was evaluated through the detection of relative luciferase activity after dexamethasone treatment.
相对荧光素酶活性法检测地塞米松作用后GR转录激活功能的变化。
The convergence performances of many algorithms are compared from three aspects: activation function, weight modification methods, and target function.
从激励函数、权值修正方法、目标函数三方面对多个改进算法进行收敛性能的比较。
It is proved that the new network activation function and the improved BP training algorithm practically applying to the requirement of process control.
新的网络激励函数和训练算法切实满足过程控制的需要。
Compared with the existing stability results of neutral-type neural networks, the activation function of neural networks studied in this chapter has a more general form.
与现有中立型神经网络的稳定性结果相比，本章所研究的神经网络的激活函数具有更一般的形式。
However, the traditional M-P neuron model which used connective weights and a nonlinear activation function simulate the operation of neural's synapse and soma respectively.
然而，传统神经元的M - P模型用连接权值和非线性激活函数分别模仿神经元的突触和细胞体的作用。
Adaptive wavelet neural network intelligent detection is a method in which the wavelet function substitutes for the activation function of hidden layer in the neural network.
自适应小波神经网络检测法就是利用小波函数取代通常神经网络中隐层的作用函数来实现的。
Conclusion the activation function of platelet in the acute phase of patients with ischemic stroke are increased, and it is associated with the volume of cerebral infarction.
结论缺血性脑卒中患者急性期血小板活化增强，且与脑梗死体积相关。
BP algorithm is often used to correct weights of neural network because number of hidden nodes, studying speed and generation ability of neural network are related to activation function.
以往的BP算法调节神经元网络的权值，其网络的隐层结点数、网络学习快慢程度及网络的泛化能力都与网络的激励函数有关的。
When the minimal eigenvalue of connection weights matrix is greater than the reciprocal of derivation of its neuron activation function, the network will be convergent in parallel update mode.
当网络连接权值矩阵的最小特征值大于激活函数导数的倒数时，网络并行收敛。
As you can see, the suspended function activation records "stack up", and then, when each function returns, it gets taken off of the stack.
正如您可以看到的一样，挂起的函数的活动记录“压入堆栈”，然后在每个函数返回时，就从堆栈中弹出。
If a function is executing, then the stack pointer is pointing to the top of the whole stack, which is also the top of that function's activation record.
如果一个函数正在执行，那么堆栈指针就会指向整个堆栈的顶部，这也是该函数活动记录的顶部。
The activation record contains all of the call-specific data for the function, including parameters and local variables.
活动记录包含了这个函数的所有与调用有关的数据，包括参数和本地变量。
Only when the function call is completely finished is the space for the activation record released for reuse (more on this later).
直到函数调用彻底完成 时，活动记录使用的空间才会被释放以便重用（更多信息请参看后面的介绍）。
To understand the brains function, especially the reticular activation system.
为了了解大脑功能，尤其是网状反应系统。
The activation record isn't needed anymore, so we are going to cut it out and redirect the tail-called function back to the function that called us.
再也不需要活动记录(activation record)，所以我们将删掉它，并将尾部调用的函数重定向返回到调用我们的函数。
This result is both surprising in itself, and suggests a novel function for the liver as an alternate site for T-cell activation.
这个实验，不但其结果本身令人吃惊，同时也表明肝脏细胞可能有一种以前不了解的新功能：肝脏应该是免疫系统的副总指挥，能够代替淋巴结向T细胞发出指令。
Calcium is also essential from cellular structure, muscle contraction, nerve transmission, enzyme activation and hormone function.
钙也是必不可少的细胞结构，肌肉收缩，神经传递，酶激活和激素功能。
Function life cycle is divided into a stage of creation and a stage of activation (call). Let's consider them in detail.
函数的生命周期分为创建和激活阶段(调用的时候)。下面我们详细的讨论它。
It holds the activation records (i.e. stack frames) of native code, and VM code including the interpreter loop function.
它掌握本地代码的活动记录(堆帧stack frames)，VM代码包括解释器循环功能。
At function activation, we see correct (and expected) result - 30. However, there is one very important feature.
在函数激活的时候，我们看到了正确(预期)的结果：30，但是，这里有一个很重要的特点。
The activation of STOP TENSION function will be signaled by the F3 symbol on the right lower area of LCD.
停止张力功能的活化将会被LCD的正比较低的面积上的F3符号发送讯号。
Qi can be seen to have five basic function activation, warming, defense, transformative action and containment.
气有五个基本生理功能：推动作用、温煦作用、防御作用、气化作用和固摄作用。
Infusion of innate lymphoid cells or amphiregulin to the lungs of infected mice normalized lung function, suggesting that the activation of these cells is central to tissue repair at lung surfaces.
注入先天淋巴样细胞或双调蛋白可使感染病毒的小鼠肺部功能正常化，表明这些细胞的活化对肺表面组织修复是重要的。
Infusion of innate lymphoid cells or amphiregulin to the lungs of infected mice normalized lung function, suggesting that the activation of these cells is central to tissue repair at lung surfaces.
注入先天淋巴样细胞或双调蛋白可使感染病毒的小鼠肺部功能正常化，表明这些细胞的活化对肺表面组织修复是重要的。
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