recover label

music_genre.py

@@ -59,12 +59,8 @@ class music_genre(datasets.GeneratorBasedBuilder):
                 {
                     "image": datasets.Image(),
                     "fst_level_label": datasets.features.ClassLabel(names=_NAMES),
-                    # "sec_level_label": datasets.features.ClassLabel(names=_NAMES),
-                    # "thr_level_label": datasets.features.ClassLabel(names=_NAMES),
-                    # "duration": datasets.Value("int16"),
-                    # "fst_level_label": datasets.Value("string"),
-                    "sec_level_label": datasets.Value("string"),
-                    "thr_level_label": datasets.Value("string"),
+                    "sec_level_label": datasets.features.ClassLabel(names=_NAMES),
+                    "thr_level_label": datasets.features.ClassLabel(names=_NAMES),
                 }
             ),
             supervised_keys=("image", "fst_level_label"),
@@ -116,17 +112,21 @@ class music_genre(datasets.GeneratorBasedBuilder):
             ),
         ]
 
+    def _calc_label(self, path, depth, substr='/mel/'):
+        dirpath = os.path.dirname(path)
+        substr_index = dirpath.find(substr)
+        labstr = dirpath[substr_index + len(substr):]
+        labs = labstr.split('/')
+        if depth <= len(labs):
+            return int(labs[depth - 1].split('_')[0])
+        else:
+            return int(labs[-1].split('_')[0])
+
     def _generate_examples(self, files):
         for i, path in enumerate(files):
-            # i = int(os.path.basename(path)[:-4])
-            # sec_level_label = int(labels.iloc[i]['sec_level_label'])
-            # thr_level_label = int(labels.iloc[i]['thr_level_label'])
-            # if thr_level_label == 0:
-            #     thr_level_label = sec_level_label
-
             yield i, {
                 "image": path,
-                "fst_level_label": "None",
-                "sec_level_label": os.path.dirname(path),
-                "thr_level_label": os.path.dirname(path)
+                "fst_level_label": _NAMES[self._calc_label(path, 1)],
+                "sec_level_label": _NAMES[self._calc_label(path, 2)],
+                "thr_level_label": _NAMES[self._calc_label(path, 3)],
             }