mirror of
https://github.com/explosion/spaCy.git
synced 2024-12-26 01:46:28 +03:00
Remove unused function
This commit is contained in:
parent
3484174e48
commit
0b1dcbac14
40
spacy/_ml.py
40
spacy/_ml.py
|
@ -482,46 +482,6 @@ def get_token_vectors(tokens_attrs_vectors, drop=0.):
|
|||
return vectors, backward
|
||||
|
||||
|
||||
def fine_tune(embedding, combine=None):
|
||||
if combine is not None:
|
||||
raise NotImplementedError(
|
||||
"fine_tune currently only supports addition. Set combine=None")
|
||||
def fine_tune_fwd(docs_tokvecs, drop=0.):
|
||||
docs, tokvecs = docs_tokvecs
|
||||
|
||||
lengths = model.ops.asarray([len(doc) for doc in docs], dtype='i')
|
||||
|
||||
vecs, bp_vecs = embedding.begin_update(docs, drop=drop)
|
||||
flat_tokvecs = embedding.ops.flatten(tokvecs)
|
||||
flat_vecs = embedding.ops.flatten(vecs)
|
||||
output = embedding.ops.unflatten(
|
||||
(model.mix[0] * flat_tokvecs + model.mix[1] * flat_vecs), lengths)
|
||||
|
||||
def fine_tune_bwd(d_output, sgd=None):
|
||||
flat_grad = model.ops.flatten(d_output)
|
||||
model.d_mix[0] += flat_tokvecs.dot(flat_grad.T).sum()
|
||||
model.d_mix[1] += flat_vecs.dot(flat_grad.T).sum()
|
||||
|
||||
bp_vecs([d_o * model.mix[1] for d_o in d_output], sgd=sgd)
|
||||
if sgd is not None:
|
||||
sgd(model._mem.weights, model._mem.gradient, key=model.id)
|
||||
return [d_o * model.mix[0] for d_o in d_output]
|
||||
return output, fine_tune_bwd
|
||||
|
||||
def fine_tune_predict(docs_tokvecs):
|
||||
docs, tokvecs = docs_tokvecs
|
||||
vecs = embedding(docs)
|
||||
return [model.mix[0]*tv+model.mix[1]*v
|
||||
for tv, v in zip(tokvecs, vecs)]
|
||||
|
||||
model = wrap(fine_tune_fwd, embedding)
|
||||
model.mix = model._mem.add((model.id, 'mix'), (2,))
|
||||
model.mix.fill(0.5)
|
||||
model.d_mix = model._mem.add_gradient((model.id, 'd_mix'), (model.id, 'mix'))
|
||||
model.predict = fine_tune_predict
|
||||
return model
|
||||
|
||||
|
||||
@layerize
|
||||
def flatten(seqs, drop=0.):
|
||||
if isinstance(seqs[0], numpy.ndarray):
|
||||
|
|
Loading…
Reference in New Issue
Block a user