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Remove unused function

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This commit is contained in:
Matthew Honnibal 2018-03-16 12:30:33 +01:00
parent 307d6bf6d3
commit eb2a3c5971
1 changed files with 0 additions and 19 deletions
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19
spacy/_ml.py
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@ -64,23 +64,6 @@ def _flatten_add_lengths(seqs, pad=0, drop=0.):
return (X, lengths), finish_update
@layerize
def _logistic(X, drop=0.):
xp = get_array_module(X)
if not isinstance(X, xp.ndarray):
X = xp.asarray(X)
# Clip to range (-10, 10)
X = xp.minimum(X, 10., X)
X = xp.maximum(X, -10., X)
Y = 1. / (1. + xp.exp(-X))
def logistic_bwd(dY, sgd=None):
dX = dY * (Y * (1-Y))
return dX
return Y, logistic_bwd
def _zero_init(model):
def _zero_init_impl(self, X, y):
self.W.fill(0)
@ -531,8 +514,6 @@ def build_text_classifier(nr_class, width=64, **cfg):
_preprocess_doc
>> LinearModel(nr_class)
)
#model = linear_model >> logistic
model = (
(linear_model | cnn_model)
>> zero_init(Affine(nr_class, nr_class*2, drop_factor=0.0))