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fromdatasetsimportload_dataset, load_from_disk
fromtransformersimportAutoTokenizer
importtorch.utils.data
importos
# load tokenizer
tokenizer=AutoTokenizer.from_pretrained('opt-seq-pubmed-tokenizer')
max_length=1024
deftokenize_function(examples):
returntokenizer(examples["text"], max_length=max_length, truncation=True)
cache_dir='./tmp'# Cache directory
data_files= {'train': ["data/trn.csv"],
'test' : ["data/val.csv"]}
extension='csv'
raw_datasets=load_dataset(extension, data_files=data_files, cache_dir=cache_dir)
preprocessing_num_workers=4
overwrite_cache=False
removed_columns= ['text']
tokenized_datasets=raw_datasets.map(
tokenize_function,
#batched=True,
num_proc=preprocessing_num_workers,
remove_columns=removed_columns,
load_from_cache_file=notoverwrite_cache,
desc="Running tokenizer on dataset",
)
tokenized_datasets.save_to_disk('tokenized_data')
# Remove cache_dir
#os.system("rm -rf ./tmp")
##ds = load_from_disk('TMP')