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* Add Parser.predict method, and clean up Parser.get_state

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This commit is contained in:
Matthew Honnibal 2015-08-09 02:29:58 +02:00
parent 04fccfb984
commit 9c090945e0
2 changed files with 10 additions and 14 deletions
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1
spacy/syntax/parser.pxd
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@ -16,3 +16,4 @@ cdef class Parser:
cdef readonly TransitionSystem moves
cdef void parse(self, StateClass stcls, ExampleC eg) nogil
cdef void predict(self, StateClass stcls, ExampleC* eg) nogil

23
spacy/syntax/parser.pyx
View File

@ -97,11 +97,7 @@ cdef class Parser:
self.model.n_feats, self.model.n_feats)
for action_name in initial_actions:
if action_name == '_':
memset(eg.c.scores, 0, eg.c.nr_class * sizeof(weight_t))
self.moves.set_valid(eg.c.is_valid, stcls)
fill_context(eg.c.atoms, stcls)
self.model.set_scores(eg.c.scores, eg.c.atoms)
eg.c.guess = arg_max_if_true(eg.c.scores, eg.c.is_valid, self.model.n_classes)
self.predict(stcls, &eg.c)
action = self.moves.c[eg.c.guess]
else:
action = self.moves.lookup_transition(action_name)
@ -111,13 +107,16 @@ cdef class Parser:
tokens.set_parse(stcls._sent)
return stcls
cdef void predict(self, StateClass stcls, ExampleC* eg) nogil:
memset(eg.scores, 0, eg.nr_class * sizeof(weight_t))
self.moves.set_valid(eg.is_valid, stcls)
fill_context(eg.atoms, stcls)
self.model.set_scores(eg.scores, eg.atoms)
eg.guess = arg_max_if_true(eg.scores, eg.is_valid, self.model.n_classes)
cdef void parse(self, StateClass stcls, ExampleC eg) nogil:
while not stcls.is_final():
memset(eg.scores, 0, eg.nr_class * sizeof(weight_t))
self.moves.set_valid(eg.is_valid, stcls)
fill_context(eg.atoms, stcls)
self.model.set_scores(eg.scores, eg.atoms)
eg.guess = arg_max_if_true(eg.scores, eg.is_valid, self.model.n_classes)
self.predict(stcls, &eg)
self.moves.c[eg.guess].do(stcls, self.moves.c[eg.guess].label)
self.moves.finalize_state(stcls)
@ -132,13 +131,9 @@ cdef class Parser:
cdef Transition G
while not stcls.is_final():
memset(eg.c.scores, 0, eg.c.nr_class * sizeof(weight_t))
self.moves.set_costs(eg.c.is_valid, eg.c.costs, stcls, gold)
fill_context(eg.c.atoms, stcls)
self.model.train(eg)
G = self.moves.c[eg.c.guess]
self.moves.c[eg.c.guess].do(stcls, self.moves.c[eg.c.guess].label)