Keras简单网络建立步骤

建立队列模型

    from keras.models import Sequential

    #Create the Sequential model
    model = Sequential()

网络层

    import numpy as np
    from keras.models import Sequential
    from keras.layers.core import Dense, Activation

    # X has shape (num_rows, num_cols), where the training data are stored
    # as row vectors
    X = np.array([[0, 0], [0, 1], [1, 0], [1, 1]], dtype=np.float32)

    # y must have an output vector for each input vector
    y = np.array([[0], [0], [0], [1]], dtype=np.float32)

    # Create the Sequential model
    model = Sequential()

    # 1st Layer - Add an input layer of 32 nodes with the same input shape as
    # the training samples in X
    model.add(Dense(32, input_dim=X.shape[1]))

    # Add a softmax activation layer
    model.add(Activation('softmax'))

    # 2nd Layer - Add a fully connected output layer
    model.add(Dense(1))

    # Add a sigmoid activation layer
    model.add(Activation('sigmoid'))

"""model.add(Dense(128,activation = "softmax"))"""

编译

model.compile(loss="categorical_crossentropy", optimizer="adam", metrics = ["accuracy"])

查看体系结构

model.summary()
xor.add(Dense(32,input_dim = 2, activation = "tanh"))
xor.add(Dense(2, activation = "sigmoid"))

训练模型

model.fit(X, y, nb_epoch=1000, verbose=0)

评价模型

model.evaluate()

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转载自blog.csdn.net/pismirecc/article/details/81483002