質問編集履歴
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質問を修正しました
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googlecolab上でChainerを用いて224枚のシカの画像を学習させ、その学習データを生成するプログラムを作成しているのですが、おそらく、L.Convolution2DとL.linearの使い方がいまいちわからず、不適切な値を入れているせいで以下のエラーが出てしまいます。どうしたらよろしいでしょうか。
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**エラー文**
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Exception in main training loop: index 218 is out of bounds for axis 0 with size 3
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Traceback (most recent call last):
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File "/usr/local/lib/python3.6/dist-packages/chainer/training/trainer.py", line 343, in run
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update()
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File "/usr/local/lib/python3.6/dist-packages/chainer/training/updaters/standard_updater.py", line 240, in update
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self.update_core()
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File "/usr/local/lib/python3.6/dist-packages/chainer/training/updaters/standard_updater.py", line 253, in update_core
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optimizer.update(loss_func, *in_arrays)
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File "/usr/local/lib/python3.6/dist-packages/chainer/optimizer.py", line 874, in update
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loss = lossfun(*args, **kwds)
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File "/usr/local/lib/python3.6/dist-packages/chainer/link.py", line 287, in __call__
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out = forward(*args, **kwargs)
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File "/usr/local/lib/python3.6/dist-packages/chainer/links/model/classifier.py", line 144, in forward
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self.loss = self.lossfun(self.y, t)
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File "/usr/local/lib/python3.6/dist-packages/chainer/functions/loss/softmax_cross_entropy.py", line 556, in softmax_cross_entropy
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loss, = func.apply((x, t))
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File "/usr/local/lib/python3.6/dist-packages/chainer/function_node.py", line 334, in apply
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outputs = self.forward(in_data)
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File "/usr/local/lib/python3.6/dist-packages/chainer/function_node.py", line 592, in forward
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return self.forward_cpu(inputs)
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File "/usr/local/lib/python3.6/dist-packages/chainer/functions/loss/softmax_cross_entropy.py", line 162, in forward_cpu
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log_p = log_yd[t.ravel(), numpy.arange(t.size)]
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Will finalize trainer extensions and updater before reraising the exception.
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IndexError Traceback (most recent call last)
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<ipython-input-1-3bf3422f7400> in <module>()
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81 trainer.extend(extensions.PlotReport(['main/loss'],'epoch',file_name='loss.png'))
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82 trainer.extend(extensions.PlotReport(['main/accuracy'],'epoch',file_name='accuracy.png'))
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---> 83 trainer.run()
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85 serializer.save_npz("mymodel.npz",model)
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/usr/local/lib/python3.6/dist-packages/chainer/functions/loss/softmax_cross_entropy.py in forward_cpu(self, inputs)
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160 t_valid = t != self.ignore_label
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161 t = t * t_valid
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--> 162 log_p = log_yd[t.ravel(), numpy.arange(t.size)]
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164 log_p *= t_valid.ravel()
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IndexError: index 218 is out of bounds for axis 0 with size 3
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**コード**
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```python
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import chainer
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with self.init_scope():
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self.conv1 = L.Convolution2D(None,16,
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self.conv1 = L.Convolution2D(None,16,3,pad=2)
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self.conv2 = L.Convolution2D(None,32,
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self.conv2 = L.Convolution2D(None,32,3,pad=2)
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self.l3 = L.Linear(None,256)
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self.l4 = L.Linear(None,
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self.l4 = L.Linear(None,3)
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def __call__(self,x):
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h = F.max_pooling_2d(F.relu(self.conv1(x)),ksize=
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h = F.max_pooling_2d(F.relu(self.conv1(x)),ksize=3,stride=2,pad=2)
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h = F.max_pooling_2d(F.relu(self.conv2(x)),ksize=
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h = F.max_pooling_2d(F.relu(self.conv2(x)),ksize=3,stride=2,pad=2)
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h = F.dropout(F.relu(self.l3(h)))
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#-----
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#-----img-----
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```
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以下エラー文です
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Exception in main training loop: index 207 is out of bounds for axis 0 with size 5
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Traceback (most recent call last):
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File "/usr/local/lib/python3.6/dist-packages/chainer/training/trainer.py", line 343, in run
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update()
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File "/usr/local/lib/python3.6/dist-packages/chainer/training/updaters/standard_updater.py", line 240, in update
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self.update_core()
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File "/usr/local/lib/python3.6/dist-packages/chainer/training/updaters/standard_updater.py", line 253, in update_core
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optimizer.update(loss_func, *in_arrays)
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File "/usr/local/lib/python3.6/dist-packages/chainer/optimizer.py", line 874, in update
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loss = lossfun(*args, **kwds)
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File "/usr/local/lib/python3.6/dist-packages/chainer/link.py", line 287, in __call__
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out = forward(*args, **kwargs)
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File "/usr/local/lib/python3.6/dist-packages/chainer/links/model/classifier.py", line 144, in forward
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self.loss = self.lossfun(self.y, t)
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File "/usr/local/lib/python3.6/dist-packages/chainer/functions/loss/softmax_cross_entropy.py", line 556, in softmax_cross_entropy
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loss, = func.apply((x, t))
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File "/usr/local/lib/python3.6/dist-packages/chainer/function_node.py", line 334, in apply
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outputs = self.forward(in_data)
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File "/usr/local/lib/python3.6/dist-packages/chainer/function_node.py", line 592, in forward
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return self.forward_cpu(inputs)
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File "/usr/local/lib/python3.6/dist-packages/chainer/functions/loss/softmax_cross_entropy.py", line 162, in forward_cpu
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log_p = log_yd[t.ravel(), numpy.arange(t.size)]
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Will finalize trainer extensions and updater before reraising the exception.
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---------------------------------------------------------------------------
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IndexError Traceback (most recent call last)
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<ipython-input-1-210692821ef6> in <module>()
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81 trainer.extend(extensions.PlotReport(['main/loss'],'epoch',file_name='loss.png'))
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82 trainer.extend(extensions.PlotReport(['main/accuracy'],'epoch',file_name='accuracy.png'))
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---> 83 trainer.run()
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/usr/local/lib/python3.6/dist-packages/chainer/functions/loss/softmax_cross_entropy.py in forward_cpu(self, inputs)
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--> 162 log_p = log_yd[t.ravel(), numpy.arange(t.size)]
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IndexError: index 207 is out of bounds for axis 0 with size 5
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