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standard_feature_functions.cc
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33  /* */
34  /* Author: Richard Caley (rjc@cstr.ed.ac.uk) */
35  /* Originally: Paul Taylor (pault@cstr,ed,ac,uk) */
36  /* -------------------------------------------------------------------- */
37  /* Some generally useful feature functions. */
38  /* */
39  /* Mostly not very general and way too specific, these shouldn't be here */
40  /* */
41  /*************************************************************************/
42 
43 #include "ling_class/EST_Item.h"
44 #include "ling_class/EST_Relation.h"
45 #include "ling_class/EST_Item_Content.h"
46 #include "ling_class/EST_item_aux.h"
47 
48 EST_Val ff_duration(EST_Item *s)
49 {
50  if (s->prev())
51  return s->F("end")-s->prev()->F("end");
52  else
53  return s->F("end");
54 }
55 
56 EST_Val ff_start(EST_Item *s)
57 {
58  /* Changed by awb 12/07/05, to make this actually a generic function */
59  /* no longer changes relation view to Segment -- may affect tilt and */
60  /* other pault things */
61  return (s->prev() == 0) ? 0.0 : s->prev()->F("end");
62 }
63 
64 EST_Val ff_tilt_phrase_position(EST_Item *s)
65 {
66  EST_String rel_name = s->S("time_path");
67  EST_Item *t, *a;
68 
69  if ((t = s->as_relation(rel_name)) == 0)
70  {
71  cerr << "item: " << *s << endl;
72  EST_error("No relation %s for item\n", (const char *) rel_name);
73  }
74 
75  a = parent(t);
76 
77  cout << "us features phrase pos\n";
78  //cout << "dereferencing syllable: " << *a << endl;
79  cout << "start: " << a->F("start") << endl;
80  cout << "end: " << a->F("end") << endl;
81 
82  if (s->S("name","0") == "phrase_start")
83  return a->F("start");
84  else
85  return a->F("end");
86 }
87 
88 EST_Val ff_tilt_event_position(EST_Item *s)
89 {
90  EST_String rel_name = s->S("time_path");
91  EST_Item *t, *a;
92 
93  if ((t = s->as_relation(rel_name)) == 0)
94  EST_error("No relation %s for item\n", (const char *) rel_name);
95 
96  a = parent(t);
97 
98  cout << "us features tilt pos\n";
99  cout << "dereferencing syllable: " << *a << endl;
100  cout << "vowel_start: " << a->F("vowel_start") << endl;
101  cout << "start: " << a->F("start") << endl;
102  cout << "end: " << a->F("end") << endl;
103 
104  return a->F("vowel_start") + s->F("rel_pos",0.0);
105 }
106 
107 EST_Val ff_leaf_end(EST_Item *s)
108 {
109  if (!s->f_present("time_path"))
110  EST_error("Attempted to use leaf end() feature function on "
111  "item with no time_path feature set: %s\n",
112  (const char *)s->relation()->name());
113 
114  EST_String rel_name = s->S("time_path");
115  EST_Item *t, *a;
116 
117  if ((t = s->as_relation(rel_name)) == 0)
118  EST_error("No relation %s for item\n", (const char *) rel_name);
119 
120  a = last_leaf_in_tree(t);
121 
122  float def = -1.0;
123  EST_feat_status stat;
124  return getFloat(*a, "end", def, stat);
125 }
126 
127 EST_Val ff_leaf_start(EST_Item *s)
128 {
129  if (!s->f_present("time_path"))
130  EST_error("Attempted to use leaf start() feature function on "
131  "item with no time_path feature set: %s\n",
132  (const char *)s->relation()->name());
133 
134  EST_String rel_name = s->S("time_path");
135  EST_Item *t, *a;
136 
137  if ((t = s->as_relation(rel_name)) == 0)
138  EST_error("No relation %s for item\n", (const char *) rel_name);
139 
140  a = first_leaf_in_tree(t);
141  // cout << "this is the first node of the tree\n";
142  //cout << *a << endl;
143 
144  float def = -1.0;
145  EST_feat_status stat;
146  return getFloat(*a, "start", def, stat);
147 }
148 
149 EST_Val ff_int_start(EST_Item *s)
150 {
151  EST_String rel_name = "IntonationPhrase";
152  EST_Item *t, *a;
153 
154  if ((t = s->as_relation(rel_name)) == 0)
155  EST_error("No relation %s for item\n", (const char *) rel_name);
156 
157  a = first_leaf_in_tree(parent(t)->as_relation("MetricalTree"));
158 
159  float def = -1.0;
160  EST_feat_status stat;
161  return getFloat(*a, "start", def, stat);
162 }
163 
164 EST_Val ff_int_end(EST_Item *s)
165 {
166  EST_String rel_name = "IntonationPhrase";
167  EST_Item *t, *a;
168 
169  if ((t = s->as_relation(rel_name)) == 0)
170  EST_error("No relation %s for item\n", (const char *) rel_name);
171 
172  a = last_leaf_in_tree(parent(t)->as_relation("MetricalTree"));
173 
174  float def = -1.0;
175  EST_feat_status stat;
176  return getFloat(*a, "end", def, stat);
177 }
178 
179 void register_standard_feature_functions(EST_FeatureFunctionPackage &p)
180 {
181 #ifdef EST_DEBUGGING
182  cerr << "register_standard_feature_functions()\n";
183 #endif
184  p.register_func("duration", ff_duration);
185  p.register_func("start", ff_start);
186  p.register_func("leaf_end", ff_leaf_end);
187  p.register_func("leaf_start", ff_leaf_start);
188  p.register_func("int_end", ff_int_end);
189  p.register_func("int_start", ff_int_start);
190  p.register_func("tilt_event_position", ff_tilt_event_position);
191  p.register_func("tilt_phrase_position", ff_tilt_phrase_position);
192  p.register_func("unisyn_duration", ff_duration);
193  p.register_func("unisyn_start", ff_start);
194  p.register_func("unisyn_leaf_end", ff_leaf_end);
195  p.register_func("unisyn_leaf_start", ff_leaf_start);
196  p.register_func("unisyn_int_end", ff_int_end);
197  p.register_func("unisyn_int_start", ff_int_start);
198  p.register_func("unisyn_tilt_event_position", ff_tilt_event_position);
199  p.register_func("unisyn_tilt_phrase_position", ff_tilt_phrase_position);
200 #ifdef EST_DEBUGGING
201  cerr << "finished register_standard_feature_functions()\n";
202 #endif
203 }
204 
205 
206