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Fix regression on cost

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This commit is contained in:
Matthew Honnibal 2016-08-30 11:00:27 +02:00
parent 1a1b2f9174
commit b73295557c
1 changed files with 1 additions and 2 deletions
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spacy/syntax/_neural.pyx
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@ -43,9 +43,8 @@ cdef class ParserPerceptron(AveragedPerceptron):
continue continue
loss += (-eg.c.costs[clas] - eg.c.scores[clas]) ** 2 loss += (-eg.c.costs[clas] - eg.c.scores[clas]) ** 2
d_loss = 2 * (-eg.c.costs[clas] - eg.c.scores[clas]) d_loss = 2 * (-eg.c.costs[clas] - eg.c.scores[clas])
step = d_loss * 0.001
for feat in eg.c.features[:eg.c.nr_feat]: for feat in eg.c.features[:eg.c.nr_feat]:
self.update_weight(feat.key, clas, feat.value * step) self.update_weight(feat.key, clas, feat.value * -d_loss)
return int(loss) return int(loss)
cdef int set_featuresC(self, FeatureC* feats, const void* _state) nogil: cdef int set_featuresC(self, FeatureC* feats, const void* _state) nogil: