batched tokenization

docbank.py

@@ -271,25 +271,38 @@ class Docbank(datasets.GeneratorBasedBuilder):
                 tokens,
                 boxes=bboxes,
                 word_labels=labels,
-                add_special_tokens=False,
-                return_offsets_mapping=False,
-                return_attention_mask=False,
+                padding=True,
+                max_length=512,
+                truncation=True,
+                return_overflowing_tokens=True,
+                return_offsets_mapping=True
+
             )
             #print(processed)
 
-            for chunk_id, index in enumerate(range(0, len(processed['input_ids']), self.CHUNK_SIZE)):
-                split_tokens = processed['input_ids'][index:index + self.CHUNK_SIZE]
-                split_bboxes = processed['bbox'][index:index + self.CHUNK_SIZE]
+            for batch_id, batch in enumerate(processed['input_ids']):
+                split_tokens = batch
+                split_bboxes = processed['bbox'][batch_id]
+                split_attention_mask = processed['attention_mask'][batch_id]
+                split_offset_mapping = processed['offset_mapping'][batch_id]
                 # split_rgbs = rgbs[index:index + self.CHUNK_SIZE]
                 # split_fonts = fonts[index:index + self.CHUNK_SIZE]
-                split_labels = processed['labels'][index:index + self.CHUNK_SIZE]
+                split_labels = processed['labels'][batch_id]
+            # for chunk_id, index in enumerate(range(0, len(processed['input_ids']), self.CHUNK_SIZE)):
+            #     split_tokens = processed['input_ids'][index:index + self.CHUNK_SIZE]
+            #     split_bboxes = processed['bbox'][index:index + self.CHUNK_SIZE]
+            #     # split_rgbs = rgbs[index:index + self.CHUNK_SIZE]
+            #     # split_fonts = fonts[index:index + self.CHUNK_SIZE]
+            #     split_labels = processed['labels'][index:index + self.CHUNK_SIZE]
 
                 #tokenized = self.TOKENIZER(processed['words'], boxes=processed['boxes'])
 
                 yield key, {
-                    "id": f"{f_id}_{chunk_id}",
+                    "id": f"{f_id}_{batch_id}",
                     'input_ids': split_tokens,
                     "bbox": split_bboxes,
+                    "attention_mask": split_attention_mask,
+                    "offset_mapping":split_offset_mapping,
                     # "RGBs": split_rgbs,
                     # "fonts": split_fonts,
                     #"image": image,