对于CTC代码中fvars和bvars的计算问题

[chengzhanzhan]

假设给定logsoftmax如下：

在CTC代码中计算fvars时：
fvars.at({0, 0}) = input_i.at({0, 0}); if (nSegment > 1) { fvars.at({0, 1}) = input_i.at({0, targetData_i[0]}); }
在使用您的代码计算时，输出：

而按照代码理解，我认为输出应该为：

我所不明白的是：
1）为何计算出的fvars({0,0})和fvars（{0,1}）为0？

非常感谢。

[chengzhanzhan]

虽不知为何，但已解决。

[bgshih]

@chengzhanzhan This looks weird, as fvars{0,0} and fvars{0,1} are not assigned elsewhere. Could this be a problem on the printing?

[chengzhanzhan]

I attempted to print them in C++ code, and I can see that the results is correct; but when I printed results by using the returned fblualib::luaPushTensor(L, alpha), fvars({0,0}) == 0.000.

[bgshih]

@chengzhanzhan I could not identify the problem at this moment. But as CTC works correctly, I will just leave it there for now.