移植JavaScript以C#(存储在阵列功能)
你好,我已经移植Karpathy's ReinforceJs到C#和我做的不错,直到我遇到了这个移植JavaScript以C#(存储在阵列功能)
backward: function() { for(var i=this.backprop.length-1;i>=0;i--) {
this.backprop[i](); // tick!
}
backprop是图一个数组,因为你可以告诉上面的数组包含这里fuctions它们是如何存储:
if(this.needs_backprop) { var backward = function() {
for(var i=0,n=d;i<n;i++){ m.dw[d * ix + i] += out.dw[i]; }
}
this.backprop.push(backward);
}
我刚刚转换这个(向后)成时needs_backprop是真正运行的功能,但在测试我的fuctions后每次只产生相同的作用C# code in repo摘要:
if (NeedsBackPropagation) {
Backward(m, outt, n);
}
和落后:
public void Backward(Matrix m, Matrix outt,int n) {
for (var i = 0; i < n; i++)
{
// grad for z = tanh(x) is (1 - z^2)
var mwi = outt.Weights[i];
m.BackPropWeights[i] += (1.0 - mwi * mwi)* outt.BackPropWeights[i];
}
}
我想知道A.直上在阵列中存储的功能,如他后来打电话给他们或B.这在C#中的等价物,我不会介意库本身
回答:
可以存储功能,在C#中也贡献,这是一个使用你的代码的例子:
public class Graph {
public bool NeedsBackPropagation { get; }
public List<Action> BackProp { get; }
public Graph(bool backProp)
{
NeedsBackPropagation = backProp;
BackProp = new List<>();
}
public Matrix RowPluck(Matrix m, int ix)
{
Util.Assert(ix >= 0 && ix < m.NumberOfRows);
var d = m.NumberOfColumns;
var outt = new Matrix(d, 1);
for (int i = 0, n = d; i < n; i++)
{
outt.Weights[i] = m.Weights[d * ix + i];
}
if (NeedsBackPropagation)
{
BackProp.Add(new Action(() => {
for (int i = 0, n = d; i < n; i++)
{
m.BackPropWeights[d * ix + i] += outt.BackPropWeights[i];
}
}));
}
return outt;
}
}
然后你需要做的,叫他们是
foreach (Action action in BackProp) {
action();
}
以上是 移植JavaScript以C#(存储在阵列功能) 的全部内容, 来源链接: utcz.com/qa/261612.html