mirror of
https://github.com/explosion/spaCy.git
synced 2024-09-21 19:39:13 +03:00
208 lines
6.0 KiB
Cython
208 lines
6.0 KiB
Cython
from __future__ import unicode_literals
|
|
|
|
from ._state cimport begin_entity
|
|
from ._state cimport end_entity
|
|
from ._state cimport entity_is_open
|
|
from ._state cimport entity_is_sunk
|
|
|
|
|
|
ACTION_NAMES = ['' for _ in range(N_ACTIONS)]
|
|
ACTION_NAMES[<int>MISSING] = '?'
|
|
ACTION_NAMES[<int>BEGIN] = 'B'
|
|
ACTION_NAMES[<int>IN] = 'I'
|
|
ACTION_NAMES[<int>LAST] = 'L'
|
|
ACTION_NAMES[<int>UNIT] = 'U'
|
|
ACTION_NAMES[<int>OUT] = 'O'
|
|
|
|
|
|
cdef bint can_begin(State* s, int label):
|
|
return not entity_is_open(s)
|
|
|
|
|
|
cdef bint can_in(State* s, int label):
|
|
return entity_is_open(s) and s.curr.label == label
|
|
|
|
|
|
cdef bint can_last(State* s, int label):
|
|
return entity_is_open(s) and s.curr.label == label
|
|
|
|
|
|
cdef bint can_unit(State* s, int label):
|
|
return not entity_is_open(s)
|
|
|
|
|
|
cdef bint can_out(State* s, int label):
|
|
return not entity_is_open(s)
|
|
|
|
|
|
cdef bint is_oracle(ActionType act, int tag, ActionType g_act, int g_tag,
|
|
ActionType next_act, bint is_sunk):
|
|
if g_act == MISSING:
|
|
return True
|
|
if act == BEGIN:
|
|
if g_act == BEGIN:
|
|
# B, Gold B --> Label match
|
|
return tag == g_tag
|
|
else:
|
|
# B, Gold I --> False (P)
|
|
# B, Gold L --> False (P)
|
|
# B, Gold O --> False (P)
|
|
# B, Gold U --> False (P)
|
|
return False
|
|
elif act == IN:
|
|
if g_act == BEGIN:
|
|
# I, Gold B --> True (P of bad open entity sunk, R of this entity sunk)
|
|
return True
|
|
elif g_act == IN:
|
|
# I, Gold I --> True (label forced by prev, if mismatch, P and R both sunk)
|
|
return True
|
|
elif g_act == LAST:
|
|
# I, Gold L --> True iff this entity sunk and next tag == O
|
|
return is_sunk and (next_act == OUT or next_act == MISSING)
|
|
elif g_act == OUT:
|
|
# I, Gold O --> True iff next tag == O
|
|
return next_act == OUT or next_act == MISSING
|
|
elif g_act == UNIT:
|
|
# I, Gold U --> True iff next tag == O
|
|
return next_act == OUT
|
|
elif act == LAST:
|
|
if g_act == BEGIN:
|
|
# L, Gold B --> True
|
|
return True
|
|
elif g_act == IN:
|
|
# L, Gold I --> True iff this entity sunk
|
|
return is_sunk
|
|
elif g_act == LAST:
|
|
# L, Gold L --> True
|
|
return True
|
|
elif g_act == OUT:
|
|
# L, Gold O --> True
|
|
return True
|
|
elif g_act == UNIT:
|
|
# L, Gold U --> True
|
|
return True
|
|
elif act == OUT:
|
|
if g_act == BEGIN:
|
|
# O, Gold B --> False
|
|
return False
|
|
elif g_act == IN:
|
|
# O, Gold I --> True
|
|
return True
|
|
elif g_act == LAST:
|
|
# O, Gold L --> True
|
|
return True
|
|
elif g_act == OUT:
|
|
# O, Gold O --> True
|
|
return True
|
|
elif g_act == UNIT:
|
|
# O, Gold U --> False
|
|
return False
|
|
elif act == UNIT:
|
|
if g_act == UNIT:
|
|
# U, Gold U --> True iff tag match
|
|
return tag == g_tag
|
|
else:
|
|
# U, Gold B --> False
|
|
# U, Gold I --> False
|
|
# U, Gold L --> False
|
|
# U, Gold O --> False
|
|
return False
|
|
|
|
|
|
cdef int set_accept_if_valid(Move* moves, int n_classes, State* s) except 0:
|
|
cdef int n_accept = 0
|
|
cdef Move* m
|
|
moves[0].accept = False
|
|
for i in range(1, n_classes):
|
|
m = &moves[i]
|
|
if m.action == BEGIN:
|
|
m.accept = can_begin(s, m.label)
|
|
elif m.action == IN:
|
|
m.accept = can_in(s, m.label)
|
|
elif m.action == LAST:
|
|
m.accept = can_last(s, m.label)
|
|
elif m.action == UNIT:
|
|
m.accept = can_unit(s, m.label)
|
|
elif m.action == OUT:
|
|
m.accept = can_out(s, m.label)
|
|
n_accept += m.accept
|
|
assert n_accept != 0
|
|
return n_accept
|
|
|
|
|
|
cdef int set_accept_if_oracle(Move* moves, Move* golds, int n_classes, State* s) except 0:
|
|
|
|
cdef Move* g = &golds[s.i]
|
|
cdef ActionType next_act = <ActionType>golds[s.i+1].action if s.i < s.length else OUT
|
|
cdef bint is_sunk = entity_is_sunk(s, golds)
|
|
cdef Move* m
|
|
cdef int n_accept = 0
|
|
set_accept_if_valid(moves, n_classes, s)
|
|
for i in range(1, n_classes):
|
|
m = &moves[i]
|
|
if not m.accept:
|
|
continue
|
|
m.accept = is_oracle(<ActionType>m.action, m.label, <ActionType>g.action,
|
|
g.label, next_act, is_sunk)
|
|
n_accept += m.accept
|
|
assert n_accept != 0
|
|
return n_accept
|
|
|
|
|
|
cdef Move* best_accepted(Move* moves, weight_t* scores, int n) except NULL:
|
|
cdef int first_accept = -1
|
|
for first_accept in range(1, n):
|
|
if moves[first_accept].accept:
|
|
break
|
|
else:
|
|
raise StandardError
|
|
assert first_accept != -1
|
|
cdef int best = first_accept
|
|
cdef weight_t score = scores[first_accept-1]
|
|
cdef int i
|
|
for i in range(first_accept+1, n):
|
|
if moves[i].accept and scores[i-1] > score:
|
|
best = i
|
|
score = scores[i-1]
|
|
return &moves[best]
|
|
|
|
|
|
cdef int transition(State *s, Move* move) except -1:
|
|
if move.action == BEGIN:
|
|
begin_entity(s, move.label)
|
|
elif move.action == IN:
|
|
pass
|
|
elif move.action == LAST:
|
|
end_entity(s)
|
|
elif move.action == UNIT:
|
|
begin_entity(s, move.label)
|
|
end_entity(s)
|
|
elif move.action == OUT:
|
|
pass
|
|
s.tags[s.i] = move.clas
|
|
s.i += 1
|
|
|
|
|
|
def get_n_moves(n_tags):
|
|
return n_tags + n_tags + n_tags + n_tags + 1
|
|
|
|
|
|
cdef int fill_moves(Move* moves, list tag_names) except -1:
|
|
cdef Move* m
|
|
label_names = {'-': 0}
|
|
for i, tag_name in enumerate(tag_names):
|
|
m = &moves[i]
|
|
if '-' in tag_name:
|
|
action_str, label = tag_name.split('-')
|
|
elif tag_name == 'O':
|
|
action_str = 'O'
|
|
label = '-'
|
|
elif tag_name == 'NULL' or tag_name == 'EOL':
|
|
action_str = '?'
|
|
label = '-'
|
|
else:
|
|
raise StandardError(tag_name)
|
|
m.action = ACTION_NAMES.index(action_str)
|
|
m.label = label_names.setdefault(label, len(label_names))
|
|
m.clas = i
|