我正在运行一个CNN,用于检查图像,但不进行分类。实际上,输出层是一个密集层,具有1d标签中的图像大小作为参数。
如下代码所示,我使用的是model.fit_generator()而不是model.fit,在开始训练模型时会出现以下错误:
TypeError:float()参数必须是字符串或数字,而不是 'builtin_function_or_method'
我并不清楚为什么会这样。 以下是该模型的摘要:
conv2d_4(Conv2D)(无,26、877、32)544
activation_5(激活)(无,26、877、32)0
max_pooling2d_4(MaxPooling2(None,13,438,32)0
conv2d_5(Conv2D)(无,12、437、16)2064
activation_6(激活)(无,12、437、16)0
max_pooling2d_5(MaxPooling2(None,6,218,16)0
conv2d_6(Conv2D)(无,5、217、8)520
activation_7(激活)(无,5、217、8)0
max_pooling2d_6(MaxPooling2(None,2,108,8)0
activation_8(激活)(无,2、108、8)0
flatten_2(Flatten)(无,1728)0
dropout_2(退出)(无,1728)0
dense_2(Dense)(None,19316)33397364
================================================ ==================
总参数:33,400,492 可训练的参数:33,400,492 不可训练的参数:0
有什么建议吗? 提前非常感谢!
我已经查看了许多在线论坛/网站,但似乎找不到适合我的情况的网站。
def generator(data_arr, batch_size = 10):
num = len(data_arr)
if num % batch_size != 0 :
num = int(num/batch_size)
# Loop forever so the generator never terminates
while True:
for offset in range(0, num, batch_size):
batch_samples = (data_arr[offset:offset+batch_size])
samples = []
labels = []
for batch_sample in batch_samples:
samples.append(batch_sample[0])
labels.append((np.array(batch_sample[1].flatten)).transpose())
X_ = np.array(samples)
Y_ = np.array(labels)
X_ = X_[:, :, :, newaxis]
print(X_.shape)
print(Y_.shape)
yield (X_, Y_)
# compile and train the model using the generator function
train_generator = generator(training_data, batch_size = 10)
validation_generator = generator(val_data, batch_size = 10)
run_opts = tf.RunOptions(report_tensor_allocations_upon_oom = True)
model = Sequential()
model.add(Conv2D(32, (4, 4), strides=(2, 2), input_shape = (55, 1756,
1)))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size = (2, 2)))
model.add(Conv2D(16, (2, 2)))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size = (2, 2)))
model.add(Conv2D(8, (2, 2)))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size = (2, 2)))
model.add(Activation('softmax'))
model.add(Flatten()) # this converts our 3D feature maps to 1D feature
vectors
model.add(Dropout(0.3))
model.add(Dense(19316))
model.compile(loss = 'sparse_categorical_crossentropy',
optimizer = 'adam',
metrics = ['accuracy'],
options = run_opts)
model.summary()
batch_size = 20
nb_epoch = 6
model.fit_generator(train_generator,
steps_per_epoch = len(training_data) ,
epochs = nb_epoch,
validation_data = validation_generator,
validation_steps = len(val_data))
答案 0 :(得分:0)
可能是这行
labels.append((np.array(batch_sample[1].flatten)).transpose())
应该是
labels.append((np.array(batch_sample[1].flatten())).transpose())