forked from nitingupta910/senna
-
Notifications
You must be signed in to change notification settings - Fork 0
/
SENNA_PSG.c
180 lines (149 loc) · 7.71 KB
/
SENNA_PSG.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
#include "SENNA_PSG.h"
#include "SENNA_utils.h"
#include "SENNA_nn.h"
#include "SENNA_Scores2Treillis.h"
void SENNA_PSG_forward(SENNA_PSG *psg, const int *sentence_words, const int *sentence_caps, const int *sentence_posl, int sentence_size,
int **labels_, int *n_level_)
{
int *sentence_psgl = SENNA_malloc(sizeof(int), sentence_size);
int *sentence_segl = SENNA_malloc(sizeof(int), sentence_size);
int *start_and_sentence_level_label = SENNA_malloc(sizeof(int), sentence_size+1);
int t;
int level;
for(t = 0; t < sentence_size; t++)
{
sentence_psgl[t] = 0;
sentence_segl[t] = 0;
}
psg->input_state = SENNA_realloc(psg->input_state, sizeof(float), sentence_size*psg->input_state_size);
psg->l1_state = SENNA_realloc(psg->l1_state, sizeof(float), sentence_size*psg->l1_state_size);
psg->l2_state = SENNA_realloc(psg->l2_state, sizeof(float), sentence_size*psg->l2_state_size);
psg->l3_state = SENNA_realloc(psg->l3_state, sizeof(float), sentence_size*psg->l3_state_size);
psg->l4_state = SENNA_realloc(psg->l4_state, sizeof(float), sentence_size*psg->l4_state_size);
SENNA_nn_lookup(psg->input_state, psg->input_state_size, psg->ll_word_weight, psg->ll_word_size, psg->ll_word_max_idx, sentence_words, sentence_size, 0, 0);
SENNA_nn_lookup(psg->input_state+psg->ll_word_size, psg->input_state_size, psg->ll_caps_weight, psg->ll_caps_size, psg->ll_caps_max_idx, sentence_caps, sentence_size, 0, 0);
SENNA_nn_lookup(psg->input_state+psg->ll_word_size+psg->ll_caps_size, psg->input_state_size, psg->ll_posl_weight, psg->ll_posl_size, psg->ll_posl_max_idx, sentence_posl, sentence_size, 0, 0);
level = 0;
while(1)
{
int all_tags_are_o;
int all_in_one_segment;
SENNA_nn_lookup(psg->input_state+psg->ll_word_size+psg->ll_caps_size+psg->ll_posl_size, psg->input_state_size, psg->ll_psgl_weight, psg->ll_psgl_size, psg->ll_psgl_max_idx, sentence_psgl, sentence_size, 0, 0);
SENNA_nn_temporal_convolution(psg->l1_state, psg->l1_state_size, psg->l1_weight, psg->l1_bias, psg->input_state, psg->input_state_size, sentence_size, 1);
SENNA_nn_temporal_max_convolution(psg->l2_state, psg->l2_bias, psg->l1_state, psg->l1_state_size, sentence_size, psg->window_size);
SENNA_nn_temporal_convolution(psg->l3_state, psg->l3_state_size, psg->l3_weight, psg->l3_bias, psg->l2_state, psg->l1_state_size, sentence_size, 1);
SENNA_nn_hardtanh(psg->l3_state, psg->l3_state, psg->l3_state_size*sentence_size);
SENNA_nn_temporal_convolution(psg->l4_state, psg->l4_state_size, psg->l4_weight, psg->l4_bias, psg->l3_state, psg->l3_state_size, sentence_size, 1);
SENNA_Treillis_buildfromscorewithsegmentation(psg->treillis, psg->l4_state, psg->viterbi_score_init, psg->viterbi_score_trans, sentence_segl, psg->l4_state_size, sentence_size);
SENNA_Treillis_viterbi(psg->treillis, start_and_sentence_level_label);
/* update history and segmentation */
all_tags_are_o = 1;
for(t = 0; t < sentence_size; t++)
{
if(start_and_sentence_level_label[t+1])
{
sentence_psgl[t] = start_and_sentence_level_label[t+1]; /* note we always keep if something was there */
sentence_segl[t] = (start_and_sentence_level_label[t+1]-1)%4+1;
all_tags_are_o = 0;
}
}
/* check if only one big segment */
if(sentence_size == 1)
all_in_one_segment = (sentence_segl[0] == SEG_S);
else
all_in_one_segment = (sentence_segl[0] == SEG_B) && (sentence_segl[sentence_size-1] == SEG_E);
for(t = 1; all_in_one_segment && (t < sentence_size-1); t++)
{
if(sentence_segl[t] != SEG_I)
all_in_one_segment = 0;
}
level++;
if(psg->max_labels_size < sentence_size*level)
{
psg->labels = SENNA_realloc(psg->labels, sizeof(float), sentence_size*level);
psg->max_labels_size = sentence_size*level;
}
memcpy(psg->labels+(level-1)*sentence_size, start_and_sentence_level_label+1, sizeof(float)*sentence_size);
if(all_in_one_segment || all_tags_are_o)
break;
}
free(sentence_psgl);
free(sentence_segl);
free(start_and_sentence_level_label);
*labels_ = psg->labels;
*n_level_ = level;
}
SENNA_PSG* SENNA_PSG_new(const char *path, const char *subpath)
{
SENNA_PSG *psg = SENNA_malloc(sizeof(SENNA_PSG), 1);
FILE *f;
float dummy;
memset(psg, 0, sizeof(SENNA_PSG));
f = SENNA_fopen(path, subpath, "rb");
SENNA_fread_tensor_2d(&psg->ll_word_weight, &psg->ll_word_size, &psg->ll_word_max_idx, f);
SENNA_fread_tensor_2d(&psg->ll_caps_weight, &psg->ll_caps_size, &psg->ll_caps_max_idx, f);
SENNA_fread_tensor_2d(&psg->ll_posl_weight, &psg->ll_posl_size, &psg->ll_posl_max_idx, f);
SENNA_fread_tensor_2d(&psg->ll_psgl_weight, &psg->ll_psgl_size, &psg->ll_psgl_max_idx, f);
SENNA_fread_tensor_2d(&psg->l1_weight, &psg->input_state_size, &psg->l1_state_size, f);
SENNA_fread_tensor_1d(&psg->l1_bias, &psg->l1_state_size, f);
SENNA_fread_tensor_2d(&psg->l2_bias, &psg->l1_state_size, &psg->window_size, f);
SENNA_fread_tensor_2d(&psg->l3_weight, &psg->l2_state_size, &psg->l3_state_size, f);
SENNA_fread_tensor_1d(&psg->l3_bias, &psg->l3_state_size, f);
SENNA_fread_tensor_2d(&psg->l4_weight, &psg->l3_state_size, &psg->l4_state_size, f);
SENNA_fread_tensor_1d(&psg->l4_bias, &psg->l4_state_size, f);
SENNA_fread_tensor_1d(&psg->viterbi_score_init, &psg->l4_state_size, f);
SENNA_fread_tensor_2d(&psg->viterbi_score_trans, &psg->l4_state_size, &psg->l4_state_size, f);
SENNA_fread(&psg->ll_word_padding_idx, sizeof(int), 1, f);
SENNA_fread(&psg->ll_caps_padding_idx, sizeof(int), 1, f);
SENNA_fread(&psg->ll_posl_padding_idx, sizeof(int), 1, f);
SENNA_fread(&psg->ll_psgl_padding_idx, sizeof(int), 1, f);
SENNA_fread(&dummy, sizeof(float), 1, f);
SENNA_fclose(f);
if((int)dummy != 777)
SENNA_error("psg: data corrupted (or not IEEE floating computer)");
psg->input_state = NULL;
psg->l1_state = NULL;
psg->l2_state = NULL;
psg->l3_state = NULL;
psg->l4_state = NULL;
psg->labels = NULL;
psg->treillis = SENNA_Treillis_new();
/* some info if you want verbose */
SENNA_message("psg: max window size: %d", psg->window_size);
SENNA_message("psg: vector size in word lookup table: %d", psg->ll_word_size);
SENNA_message("psg: word lookup table size: %d", psg->ll_word_max_idx);
SENNA_message("psg: vector size in caps lookup table: %d", psg->ll_caps_size);
SENNA_message("psg: caps lookup table size: %d", psg->ll_caps_max_idx);
SENNA_message("psg: vector size in pos lookup table: %d", psg->ll_posl_size);
SENNA_message("psg: pos lookup table size: %d", psg->ll_posl_max_idx);
SENNA_message("psg: vector size in psg lookup table: %d", psg->ll_psgl_size);
SENNA_message("psg: psg lookup table size: %d", psg->ll_psgl_max_idx);
SENNA_message("psg: number of hidden units: %d [1]", psg->l1_state_size);
SENNA_message("psg: number of hidden units: %d [2]", psg->l3_state_size);
SENNA_message("psg: number of classes: %d", psg->l4_state_size);
return psg;
}
void SENNA_PSG_free(SENNA_PSG *psg)
{
SENNA_free(psg->ll_word_weight);
SENNA_free(psg->ll_caps_weight);
SENNA_free(psg->ll_posl_weight);
SENNA_free(psg->ll_psgl_weight);
SENNA_free(psg->l1_weight);
SENNA_free(psg->l1_bias);
SENNA_free(psg->l2_bias);
SENNA_free(psg->l3_weight);
SENNA_free(psg->l3_bias);
SENNA_free(psg->l4_weight);
SENNA_free(psg->l4_bias);
SENNA_free(psg->viterbi_score_init);
SENNA_free(psg->viterbi_score_trans);
SENNA_free(psg->input_state);
SENNA_free(psg->l1_state);
SENNA_free(psg->l2_state);
SENNA_free(psg->l3_state);
SENNA_free(psg->l4_state);
SENNA_free(psg->labels);
SENNA_Treillis_free(psg->treillis);
SENNA_free(psg);
}