def test_xor2():
"""
Two inputs, two outputs.
"""
net = Network("XOR2")
net.add(Layer("input1", shape=1))
net.add(Layer("input2", shape=1))
net.add(Layer("hidden1", shape=2, activation="sigmoid"))
net.add(Layer("hidden2", shape=2, activation="sigmoid"))
net.add(Layer("shared-hidden", shape=2, activation="sigmoid"))
net.add(Layer("output1", shape=1, activation="sigmoid"))
net.add(Layer("output2", shape=1, activation="sigmoid"))
net.connect("input1", "hidden1")
net.connect("input2", "hidden2")
net.connect("hidden1", "shared-hidden")
net.connect("hidden2", "shared-hidden")
net.connect("shared-hidden", "output1")
net.connect("shared-hidden", "output2")
net.compile(error='mean_squared_error',
optimizer=SGD(lr=0.3, momentum=0.9))
net.dataset.load([
([[0],[0]], [[0],[0]]),
([[0],[1]], [[1],[1]]),
([[1],[0]], [[1],[1]]),
([[1],[1]], [[0],[0]])
])
net.train(2000, report_rate=10, accuracy=1, plot=False)
net.evaluate(show=True)
net.propagate_to("shared-hidden", [[1], [1]])
net.propagate_to("output1", [[1], [1]])
net.propagate_to("output2", [[1], [1]])
net.propagate_to("hidden1", [[1], [1]])
net.propagate_to("hidden2", [[1], [1]])
net.propagate_to("output1", [[1], [1]])
net.propagate_to("output2", [[1], [1]])
net.save_weights("/tmp")
net.load_weights("/tmp")
net.evaluate(show=True)
svg = net.to_svg()
assert net is not None
def test_xor1():
"""
Standard XOR.
"""
net = Network("XOR")
net.add(Layer("input", 2))
net.add(Layer("hidden", 5))
net.add(Layer("output", 1))
net.connect("input", "hidden")
net.connect("hidden", "output")
net.compile(error="binary_crossentropy", optimizer="adam")
net.summary()
net.model.summary()
net.dataset.load([[[0, 0], [0]],
[[0, 1], [1]],
[[1, 0], [1]],
[[1, 1], [0]]])
net.train(epochs=2000, accuracy=1, report_rate=25, plot=False)
net.evaluate(show=True)
net.save_weights("/tmp")
net.load_weights("/tmp")
svg = net.to_svg()
assert net is not None