我使用jupyter笔记本和anaconda。我首先使用kerast,我不能做教程。关于这个问题是stackoverflow中的两个主题,但是找不到解决方法。
我的代码:
model = Sequential()
model.add(Dense(1, input_dim=1, activation='softmax'))
model.compile(optimizer='rmsprop',
loss='binary_crossentropy',
metrics=['accuracy'])
X_train_shape = X_train.reshape(len(X_train), 1)
Y_train_shape = Y_train.reshape(len(Y_train), 1)
model.fit(X_train, Y_train, nb_epoch=5, batch_size=32)
我有错误,这是一些随机的,有时一两个时代的竞争:
大纪元1/5 4352/17500 [======> .......................]
----------------------------------------------- ---------------------------- ValueError Traceback(最近一次调用 最后)in() 32个样本中的2个 3 #sleep(0.1) ----> 4 model.fit(X_train,Y_train,nb_epoch = 5,batch_size = 32) 5 #sleep(0.1)
C:\ Anaconda3 \ envs \ py27 \ lib \ site-packages \ keras \ models.pyc in fit(self, x,y,batch_size,nb_epoch,verbose,callbacks,validation_split, validation_data,shuffle,class_weight,sample_weight,** kwargs) 395 shuffle = shuffle, 396 class_weight = class_weight, - > 397 sample_weight = sample_weight) 398 399 def evaluate(self,x,y,batch_size = 32,verbose = 1,
C:\ Anaconda3 \ envs \ py27 \ lib \ site-packages \ keras \ engine \ training.pyc in 适合(self,x,y,batch_size,nb_epoch,verbose,callbacks, validation_split,validation_data,shuffle,class_weight, sample_weight)1009 verbose = verbose, callbacks = callbacks,1010
val_f = val_f,val_ins = val_ins,shuffle = shuffle, - > 1011 callback_metrics = callback_metrics)1012 1013 def evaluate(self,x,y,batch_size = 32,verbose = 1,sample_weight = None):C:\ Anaconda3 \ envs \ py27 \ lib \ site-packages \ keras \ engine \ training.pyc in _fit_loop(self,f,ins,out_labels,batch_size,nb_epoch,verbose,callbacks,val_f,val_ins,shuffle,callback_metrics) 753 batch_logs [l] = o 754 - > 755 callbacks.on_batch_end(batch_index,batch_logs) 756 757 epoch_logs = {}
C:\ Anaconda3 \ envs \ py27 \ lib \ site-packages \ keras \ callbacks.pyc in on_batch_end(self,batch,logs) 58 t_before_callbacks = time.time() 59用于self.callbacks中的回调: ---> 60 callback.on_batch_end(批处理,日志) 61 self._delta_ts_batch_end.append(time.time() - t_before_callbacks) 62 delta_t_median = np.median(self._delta_ts_batch_end)
C:\ Anaconda3 \ envs \ py27 \ lib \ site-packages \ keras \ callbacks.pyc in on_batch_end(self,batch,logs) 187#将由on_epoch_end处理 188如果self.verbose和self.seen< self.params [ 'nb_sample']: - > 189 self.progbar.update(self.seen,self.log_values) 190 191 def on_epoch_end(self,epoch,logs = {}):
C:\ Anaconda3 \ ENVS \ py27 \ lib中\站点包\ keras \ utils的\ generic_utils.pyc 在更新(自我,当前,价值) 110 info + =((prev_total_width - self.total_width)*“”) 111 - > 112 sys.stdout.write(info) 113 sys.stdout.flush() 114
C:\ Anaconda3 \ envs \ py27 \ lib \ site-packages \ ipykernel \ iostream.pyc in 写(自我,字符串) 315 316 is_child =(不是self._is_master_process()) - > 317 self._buffer.write(string) 318 if is_child: 319 #newlines暗示在子流程中刷新
ValueError:关闭文件的I / O操作
答案 0 :(得分:6)
更改您的详细级别
model.fit()
至
verbose=0.
见github.com/fchollet/keras/issues/2110
这不是一个直接的“修复”,但它应该有助于缓解与更新iPython控制台相关的竞争条件。