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* Everything compiling after reorg. About to start testing.

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This commit is contained in:
Matthew Honnibal 2014-12-21 05:42:23 +11:00
parent e1c1a4b868
commit b34a1325d3
4 changed files with 143 additions and 77 deletions
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26
spacy/syntax/_state.pxd
View File

@ -20,8 +20,7 @@ cdef int pop_stack(State *s) except -1
cdef int push_stack(State *s) except -1
cdef inline bint has_head(const TokenC* t) nogil:
return t.head != 0
cdef bint has_head(const TokenC* t) nogil
cdef inline int get_idx(const State* s, const TokenC* t) nogil:
@ -71,14 +70,29 @@ cdef inline bint is_final(const State *s) nogil:
return at_eol(s) # The stack will be attached to root anyway
cdef int children_in_buffer(const State *s, const int head, int* gold) except -1
cdef int head_in_buffer(const State *s, const int child, int* gold) except -1
cdef int children_in_stack(const State *s, const int head, int* gold) except -1
cdef int head_in_stack(const State *s, const int child, int* gold) except -1
cdef int children_in_buffer(const State *s, const int head, const int* gold) except -1
cdef int head_in_buffer(const State *s, const int child, const int* gold) except -1
cdef int children_in_stack(const State *s, const int head, const int* gold) except -1
cdef int head_in_stack(const State *s, const int child, const int* gold) except -1
cdef State* init_state(Pool mem, TokenC* sent, const int sent_length) except NULL
cdef int count_left_kids(const TokenC* head) nogil
cdef int count_right_kids(const TokenC* head) nogil
# From https://en.wikipedia.org/wiki/Hamming_weight
cdef inline uint32_t _popcount(uint32_t x) nogil:
"""Find number of non-zero bits."""
cdef int count = 0
while x != 0:
x &= x - 1
count += 1
return count
cdef inline uint32_t _nth_significant_bit(uint32_t bits, int n) nogil:
cdef int i

49
spacy/syntax/_state.pyx
View File

@ -3,24 +3,32 @@ from libc.string cimport memmove
from cymem.cymem cimport Pool
from ..lexeme cimport EMPTY_LEXEME
from ..structs cimport TokenC
DEF PADDING = 5
DEF NON_MONOTONIC = True
cdef int add_dep(State *s, int head, int child, int label) except -1:
s.sent[child].head = head - child
cdef int dist = head - child
s.sent[child].head = dist
s.sent[child].dep_tag = label
# Keep a bit-vector tracking child dependencies. If a word has a child at
# offset i from it, set that bit (tracking left and right separately)
if child > head:
s.sent[head].r_kids |= 1 << (-s.sent[child].head)
s.sent[head].r_kids |= 1 << (-dist)
else:
s.sent[head].l_kids |= 1 << s.sent[child].head
s.sent[head].l_kids |= 1 << dist
cdef int pop_stack(State *s) except -1:
assert s.stack_len >= 1
s.stack_len -= 1
s.stack -= 1
if s.stack_len == 0 and not at_eol(s):
push_stack(s)
cdef int push_stack(State *s) except -1:
assert s.i < s.sent_len
@ -28,9 +36,14 @@ cdef int push_stack(State *s) except -1:
s.stack[0] = s.i
s.stack_len += 1
s.i += 1
if at_eol(s):
while s.stack_len != 0:
if not has_head(get_s0(s)):
get_s0(s).dep_tag = 0
pop_stack(s)
cdef int children_in_buffer(const State *s, int head, int* gold) except -1:
cdef int children_in_buffer(const State *s, int head, const int* gold) except -1:
# Golds holds an array of head offsets --- the head of word i is i - golds[i]
# Iterate over the tokens of the queue, and check whether their gold head is
# our target
@ -42,20 +55,21 @@ cdef int children_in_buffer(const State *s, int head, int* gold) except -1:
return n
cdef int head_in_buffer(const State *s, const int child, int* gold) except -1:
cdef int head_in_buffer(const State *s, const int child, const int* gold) except -1:
return gold[child] >= s.i
cdef int children_in_stack(const State *s, const int head, int* gold) except -1:
cdef int children_in_stack(const State *s, const int head, const int* gold) except -1:
cdef int i
cdef int n = 0
for i in range(s.stack_len):
if gold[s.stack[-i]] == head:
n += 1
if NON_MONOTONIC or not has_head(get_s0(s)):
n += 1
return n
cdef int head_in_stack(const State *s, const int child, int* gold) except -1:
cdef int head_in_stack(const State *s, const int child, const int* gold) except -1:
cdef int i
for i in range(s.stack_len):
if gold[child] == s.stack[-i]:
@ -72,7 +86,7 @@ cdef const TokenC* get_left(const State* s, const TokenC* head, const int idx) n
if child >= s.sent:
return child
else:
return s.sent - 1
return NULL
cdef const TokenC* get_right(const State* s, const TokenC* head, const int idx) nogil:
@ -84,10 +98,20 @@ cdef const TokenC* get_right(const State* s, const TokenC* head, const int idx)
if child < (s.sent + s.sent_len):
return child
else:
return s.sent - 1
return NULL
DEF PADDING = 5
cdef bint has_head(const TokenC* t) nogil:
return t.head != 0
cdef int count_left_kids(const TokenC* head) nogil:
return _popcount(head.l_kids)
cdef int count_right_kids(const TokenC* head) nogil:
return _popcount(head.r_kids)
cdef State* init_state(Pool mem, TokenC* sent, const int sent_length) except NULL:
@ -102,4 +126,5 @@ cdef State* init_state(Pool mem, TokenC* sent, const int sent_length) except NUL
s.stack_len = 0
s.i = 0
s.sent_len = sent_length
push_stack(s)
return s

10
spacy/syntax/arc_eager.pxd
View File

@ -7,8 +7,11 @@ from ._state cimport State
cdef struct Transition:
int clas
int move
int label
int cost
weight_t score
cdef class TransitionSystem:
@ -18,7 +21,8 @@ cdef class TransitionSystem:
cdef const Transition* _moves
cdef Transition best_valid(self, const weight_t* scores, const State* s) except -1
cdef Transition best_gold(self, const weight_t* scores, const State* s,
int* gold_heads, int* gold_labels) except -1
cdef Transition best_valid(self, const weight_t* scores, const State* s) except *
cdef Transition best_gold(self, Transition* guess, const weight_t* scores,
const State* s,
const int* gold_heads, const int* gold_labels) except *
cdef int transition(self, State *s, const Transition* t) except -1

135
spacy/syntax/arc_eager.pyx
View File

@ -5,7 +5,9 @@ from ._state cimport is_final, at_eol, pop_stack, push_stack, add_dep
from ._state cimport head_in_buffer, children_in_buffer
from ._state cimport head_in_stack, children_in_stack
from ..tokens cimport TokenC
from ..structs cimport TokenC
DEF NON_MONOTONIC = True
cdef enum:
@ -25,22 +27,30 @@ cdef inline bint _can_right(const State* s) nogil:
cdef inline bint _can_left(const State* s) nogil:
return s.stack_len >= 1 and not has_head(get_s0(s))
if NON_MONOTONIC:
return s.stack_len >= 1
else:
return s.stack_len >= 1 and not has_head(get_s0(s))
cdef inline bint _can_reduce(const State* s) nogil:
return s.stack_len >= 2 and has_head(get_s0(s))
if NON_MONOTONIC:
return s.stack_len >= 2
else:
return s.stack_len >= 2 and has_head(get_s0(s))
cdef int _shift_cost(const State* s, int* gold) except -1:
cdef int _shift_cost(const State* s, const int* gold) except -1:
assert not at_eol(s)
cost = 0
cost += head_in_stack(s, s.i, gold)
cost += children_in_stack(s, s.i, gold)
if NON_MONOTONIC:
cost += gold[s.stack[0]] == s.i
return cost
cdef int _right_cost(const State* s, int* gold) except -1:
cdef int _right_cost(const State* s, const int* gold) except -1:
assert s.stack_len >= 1
cost = 0
if gold[s.i] == s.stack[0]:
@ -48,10 +58,12 @@ cdef int _right_cost(const State* s, int* gold) except -1:
cost += head_in_buffer(s, s.i, gold)
cost += children_in_stack(s, s.i, gold)
cost += head_in_stack(s, s.i, gold)
if NON_MONOTONIC:
cost += gold[s.stack[0]] == s.i
return cost
cdef int _left_cost(const State* s, int* gold) except -1:
cdef int _left_cost(const State* s, const int* gold) except -1:
assert s.stack_len >= 1
cost = 0
if gold[s.stack[0]] == s.i:
@ -59,11 +71,17 @@ cdef int _left_cost(const State* s, int* gold) except -1:
cost += head_in_buffer(s, s.stack[0], gold)
cost += children_in_buffer(s, s.stack[0], gold)
if NON_MONOTONIC and s.stack_len >= 2:
cost += gold[s.stack[0]] == s.stack[-1]
return cost
cdef int _reduce_cost(const State* s, int* gold) except -1:
return children_in_buffer(s, s.stack[0], gold)
cdef int _reduce_cost(const State* s, const int* gold) except -1:
cdef int cost = 0
cost += children_in_buffer(s, s.stack[0], gold)
if NON_MONOTONIC:
cost += head_in_buffer(s, s.stack[0], gold)
return cost
cdef class TransitionSystem:
@ -73,38 +91,40 @@ cdef class TransitionSystem:
right_labels.sort()
if 'ROOT' in right_labels:
right_labels.pop(right_labels.index('ROOT'))
if 'dep' in right_labels:
right_labels.pop(right_labels.index('dep'))
if 'ROOT' in left_labels:
left_labels.pop(left_labels.index('ROOT'))
if 'dep' in left_labels:
left_labels.pop(left_labels.index('dep'))
self.n_moves = 2 + len(left_labels) + len(right_labels)
moves = <Transition*>self.mem.alloc(self.n_moves, sizeof(Transition))
cdef int i = 0
moves[i].move = SHIFT
moves[i].label = 0
moves[i].clas = i
i += 1
moves[i].move = REDUCE
moves[i].label = 0
moves[i].clas = i
i += 1
self.label_ids = {'ROOT': 0, 'dep': -1}
self.label_ids = {'ROOT': 0}
cdef int label_id
for label_str in left_labels:
label_id = self.label_ids.setdefault(label_str, len(self.label_ids))
moves[i].move = LEFT
moves[i].label = label_id
moves[i].clas = i
i += 1
for label_str in right_labels:
label_id = self.label_ids.setdefault(label_str, len(self.label_ids))
moves[i].move = RIGHT
moves[i].label = label_id
moves[i].clas = i
i += 1
self._moves = moves
cdef int transition(self, State *s, const int clas) except -1:
cdef const Transition* t = &self._moves[clas]
cdef int transition(self, State *s, const Transition* t) except -1:
if t.move == SHIFT:
# Set the dep label, in case we need it after we reduce
if NON_MONOTONIC:
get_s0(s).dep_tag = t.label
push_stack(s)
elif t.move == LEFT:
add_dep(s, s.i, s.stack[0], t.label)
@ -113,11 +133,12 @@ cdef class TransitionSystem:
add_dep(s, s.stack[0], s.i, t.label)
push_stack(s)
elif t.move == REDUCE:
add_dep(s, s.stack[-1], s.stack[0], get_s0(s).dep_tag)
pop_stack(s)
else:
raise StandardError(t.move)
cdef int best_valid(self, const weight_t* scores, const State* s) except -1:
cdef Transition best_valid(self, const weight_t* scores, const State* s) except *:
cdef bint[N_MOVES] valid
valid[SHIFT] = _can_shift(s)
valid[LEFT] = _can_left(s)
@ -126,59 +147,61 @@ cdef class TransitionSystem:
cdef int best = -1
cdef weight_t score = 0
cdef weight_t best_r_score = -9000
cdef int best_r_label = -1
cdef int i
for i in range(self.n_moves):
if valid[self._moves[i].move] and (best == -1 or scores[i] > score):
best = i
score = scores[i]
if self._moves[i].move == RIGHT and scores[i] > best_r_score:
best_r_label = self._moves[i].label
assert best >= 0
return best
cdef Transition t = self._moves[best]
t.score = score
if t.move == SHIFT:
t.label = best_r_label
return t
cdef int best_gold(self, const weight_t* scores, const State* s,
int* gold_heads, int* gold_labels) except -1:
cdef Transition best_gold(self, Transition* guess, const weight_t* scores,
const State* s,
const int* gold_heads, const int* gold_labels) except *:
# If we can create a gold dependency, only one action can be correct
cdef int[N_MOVES] unl_costs
unl_costs[SHIFT] = _shift_cost(s, gold_heads) if _can_shift(s) else -1
unl_costs[LEFT] = _left_cost(s, gold_heads) if _can_left(s) else -1
unl_costs[RIGHT] = _right_cost(s, gold_heads) if _can_right(s) else -1
unl_costs[REDUCE] = _reduce_cost(s, gold_heads) if _can_reduce(s) else -1
cdef int cost
cdef int move
cdef int label
guess.cost = unl_costs[guess.move]
cdef Transition t
cdef int target_label
cdef int i
if gold_heads[s.stack[0]] == s.i:
target_label = gold_labels[s.stack[0]]
if guess.move == LEFT:
guess.cost += guess.label != target_label
for i in range(self.n_moves):
t = self._moves[i]
if t.move == LEFT and t.label == target_label:
return t
elif gold_heads[s.i] == s.stack[0]:
target_label = gold_labels[s.i]
if guess.move == RIGHT:
guess.cost += guess.label != target_label
for i in range(self.n_moves):
t = self._moves[i]
if t.move == RIGHT and t.label == target_label:
return t
cdef int best = -1
cdef weight_t score = -9000
cdef int i
for i in range(self.n_moves):
move = self._moves[i].move
label = self._moves[i].label
if unl_costs[move] == 0:
if move == SHIFT or move == REDUCE:
cost = 0
elif move == LEFT:
if gold_heads[s.stack[0]] == s.i and gold_labels[s.stack[0]] != -1:
cost = label != gold_labels[s.stack[0]]
else:
cost = 0
elif move == RIGHT:
if gold_heads[s.i] == s.stack[0] and gold_labels[s.i] != -1:
cost = label != gold_labels[s.i]
else:
cost = 0
else:
raise StandardError("Unknown Move")
if cost == 0 and (best == -1 or scores[i] > score):
best = i
score = scores[i]
if best < 0:
print unl_costs[SHIFT], unl_costs[REDUCE], unl_costs[LEFT], unl_costs[RIGHT]
print s.stack_len
print has_head(get_s0(s))
print s.sent[s.stack[0]].head
print s.stack[0], s.i
print gold_heads[s.stack[0]], gold_heads[s.i]
print gold_labels[s.i]
print children_in_buffer(s, s.stack[0], gold_heads)
print head_in_buffer(s, s.stack[0], gold_heads)
raise StandardError
return best
t = self._moves[i]
if unl_costs[t.move] == 0 and (best == -1 or scores[i] > score):
best = i
score = scores[i]
t = self._moves[best]
t.score = score
assert best >= 0
return t