fix binary memory leakage

DUDE_imdb_loader.py

@@ -363,7 +363,7 @@ if __name__ == "__main__":
             save_json(documents_ocr_filename, documents_ocr_info)
 
         imdb = create_imdb_from_json(
-            dataset[split], #.select(split_indices),  
+            dataset[split],  # .select(split_indices),
             documents_metadata=documents_metadata,
             documents_ocr_info=documents_ocr_info,
             split=split,

DUDE_loader.py

@@ -222,9 +222,10 @@ class DUDE(datasets.GeneratorBasedBuilder):
         annotations = [x for x in annotations if x["data_split"] == split]
 
         for i, a in enumerate(annotations):
-            a["data_split"] = split
             if a["docId"] in SKIP_DOC_IDS:
                 continue
+            a = dict(a)
+            a["data_split"] = split
             a["answers_page_bounding_boxes"] = parse_bbox(a["answers_page_bounding_boxes"])
             docpath = retrieve_doc(a["docId"])
             ocrpath = retrieve_OCR(a["docId"])