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26 lines
455 B
Python
26 lines
455 B
Python
# Copyright (c) 2015, James Hensman
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from ..core.mapping import Mapping
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from ..core import Param
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class Identity(Mapping):
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"""
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A mapping that does nothing!
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"""
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def __init__(self, input_dim, output_dim, name='identity'):
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Mapping.__init__(self, input_dim, output_dim, name)
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def f(self, X):
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return X
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def update_gradients(self, dL_dF, X):
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pass
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def gradients_X(self, dL_dF, X):
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return dL_dF
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