21 lines
864 B
Markdown
21 lines
864 B
Markdown
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---
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title: Accuracy and Top-k
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---
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# Accuracy and Top-k
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`Accuracy` scores the output as the accuracy of output with respect to target -- it is not actually a loss and has no backward step.
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* Layer type: `Accuracy`
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* [Doxygen Documentation](http://caffe.berkeleyvision.org/doxygen/classcaffe_1_1AccuracyLayer.html)
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* Header: [`./include/caffe/layers/accuracy_layer.hpp`](https://github.com/BVLC/caffe/blob/master/include/caffe/layers/accuracy_layer.hpp)
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* CPU implementation: [`./src/caffe/layers/accuracy_layer.cpp`](https://github.com/BVLC/caffe/blob/master/src/caffe/layers/accuracy_layer.cpp)
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## Parameters
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* Parameters (`AccuracyParameter accuracy_param`)
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* From [`./src/caffe/proto/caffe.proto`](https://github.com/BVLC/caffe/blob/master/src/caffe/proto/caffe.proto)):
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{% highlight Protobuf %}
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{% include proto/AccuracyParameter.txt %}
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{% endhighlight %}
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