blocks|key|688093|text|您可以编写自己的get/set方法并将它们公开给python。在layer.hpp中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|688094|virtual+float+GetParameter(const+std::string+param_name)+{return+-1;}
virtual+void+SetParameter(const+std::string+param_name,+float+val)+{}|code-block|syntax|javascript|688095|然后在希望动态获取/设置参数的层中重新定义这些方法。|688096|最后一步是向python公开这些方法。在_caffe.cpp中为bp::class_<Layer...添加以下内容|offset|length|style|CODE|688097|.def("get_parameter",+&Layer<Dtype>::GetParameter)
.def("set_parameter",+&Layer<Dtype>::SetParameter)|688098|entityMap^0|0|0|0|W|J|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|V|8|@$K|W|L|X|M|N]]|9|@]|A|$]]|$1|O|3|P|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

You can write your own get/set methods and expose them to python.
In layer.hpp:

<pre><code>virtual float GetParameter(const std::string param_name) {return -1;}
virtual void SetParameter(const std::string param_name, float val) {}
</code></pre>

Then redefine these methods in layers where you would like to get/set parameters dynamically.

The last step is to expose the methods to python. In _caffe.cpp add this for <code>bp::class_&lt;Layer...</code>:

<pre><code>.def("get_parameter", &amp;Layer&lt;Dtype&gt;::GetParameter)
.def("set_parameter", &amp;Layer&lt;Dtype&gt;::SetParameter)
</code></pre>

blocks|key|3602415|text|我建议改变你对这个问题的看法。对于您提到的“动态修改的参数”，它依赖于什么？最常用的变量(我所面对的变量)是当前的迭代时间。例如，我希望每10000次减少一次参数值。基于此，当您使用该参数时，在层中应用函数来修改它。这与修改prototxt文件是一样的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3602416|为了获得特定层中的迭代时间，我只是在这里放置了彼此的解决方案。它非常简单，与修改prototxt文件相比，它可能会大大减少您的工作负载。希望您能从这个解决方案中得到灵感，并将其应用到您的案例中。|3602417|https://stackoverflow.com/a/38386603/6591990|offset|length|3602418|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|18|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@$F|R|G|S|1|T]]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|E]]]]

I would suggest changing the way you think of this problem. What does it depend on for what you mentioned "dynamically modified parameter"? A most commonly used variable (which I was facing) is the current iteration times. For example I want to reduce the parameter value in every 10000 times. Based on that, in the layer when you are using that parameter, apply the function to modify it. That's the same as modifying the prototxt file.

To get the iteration times in specific layer, I just put one other's solution here. It is quite straightforward and could probably reduce your work load significantly compared to modifying prototxt file. Hopefully you could get inspired from this solution and apply it in your case.

<a href="https://stackoverflow.com/a/38386603/6591990">https://stackoverflow.com/a/38386603/6591990</a>

blocks|key|688182|text|员额末尾的解决办法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|688183|我需要细化一个模型，因此我希望以编程的方式更改各个层的lr_mult参数。我的帮助搜索从这个线程的标题开始，谢天谢地在下面提到的题为“如何以编程方式修改prototxt？”的链接中结束。|688184|https://github.com/BVLC/caffe/issues/4878|offset|length|688185|在text_format中的google中加载模型定义prototxt文件后，可以访问和修改这些参数。修改后的原型可以写成一个文件。|688186|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|15|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@$F|T|G|U|1|V]]|A|$]]|$1|H|3|I|5|6|7|W|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|E]]]]

[Solution at the end of the post] 
I needed to finetune a model and hence wanted to change the lr_mult parameters of individual layers programmatically. My search for help started from the title of this thread and thankfully ended in the below mentioned link titled 'How to modify a prototxt programmatically?'. <a href="https://github.com/BVLC/caffe/issues/4878" rel="nofollow noreferrer">https://github.com/BVLC/caffe/issues/4878</a> 
The parameters can be accessed and modified after loading the model definition prototxt file in google/protobuf in text_format. The modified protobuf can be written as a file.

I use the follwoing code to load the net and set up it, the parameters of layers are stored in <code>deploy.prototxt</code>.

<code>net = caffe.Net(deploy.prototxt, caffemodel, caffe.TEST)</code>

However, what I want to do is to modify the parameters (e.g. <code>kernel_size</code>, or <code>pad</code>, etc.) of layers dynamically instead of modifying the prototxt file and reload it.
Is there any way to do so?

Dynamically modify layer's parameters in Caffe

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我使用折叠代码加载和设置网络，层的参数存储在deploy.prototxt中。net = caffe.Net(deploy.prototxt, caffemodel,  caffe.TEST)然而，我想要做的是修改参数(例如kernel_size或pad等)。而不是修改prototxt文件并重新加载它。有没有办法这样做...

问Caffe中层参数的动态修改
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