输出层偏导数：首先计算损失函数相对于输出层神经元输出的偏导数。这通常直接依赖于所选的损失函数。
This may be completed as part of an Formal patch or bug take care of. For open up-resource application, which include Linux, a backport could be furnished by a third party after which you can submitted into the program enhancement group.
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隐藏层偏导数：使用链式法则，将输出层的偏导数向后传播到隐藏层。对于隐藏层中的每个神经元，计算其输出相对于下一层神经元输入的偏导数，并与下一层传回的偏导数相乘，累积得到该神经元对损失函数的总偏导数。
Backporting is a common technique to deal with a recognized bug in the IT natural environment. Concurrently, relying on a legacy codebase introduces other most likely sizeable stability implications for corporations. Counting on outdated or legacy code could result in introducing weaknesses or vulnerabilities in the setting.
In this particular situation, the consumer remains jogging an more mature upstream Edition on the software program with backport packages applied. This does not supply the complete security features and benefits of functioning the newest Model of the computer software. End users must double-check to check out the precise software package update selection to be sure They're updating to the most up-to-date version.
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来计算梯度，我们需要调整权重矩阵的权重。我们网络的神经元（节点）的权重是通过计算损失函数的梯度来调整的。为此
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参数偏导数：在计算了输出层和隐藏层的偏导数之后，我们需要进一步计算损失函数相对于网络参数的偏导数，即权重和偏置的偏导数。
These concerns affect not merely the key software but will also all dependent libraries and forked purposes to public repositories. It is important to contemplate how Each and every backport fits within the Firm’s All round security strategy, as well as the IT architecture. This applies to both equally upstream software package apps plus the kernel alone.