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hitachi-nlp/
bert-base-japanese_nothing-wordpiece

Name: bert-base-japanese_nothing-wordpiece
Availability: InStock

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Japanese BERT-base (Nothing + WordPiece)

How to load the tokenizer

Please download the dictionary file for Nothing + WordPiece from our GitHub repository. Then you can load the tokenizer by specifying the path of the dictionary file to dict_path.

python

from typing import Optional

from tokenizers import Tokenizer, NormalizedString, PreTokenizedString
from tokenizers.processors import BertProcessing
from tokenizers.pre_tokenizers import PreTokenizer
from transformers import PreTrainedTokenizerFast

# load a tokenizer
dict_path = /path/to/nothing_wordpiece.json
tokenizer = Tokenizer.from_file(dict_path)
tokenizer.post_processor = BertProcessing(
    cls=("[CLS]", tokenizer.token_to_id('[CLS]')),
    sep=("[SEP]", tokenizer.token_to_id('[SEP]'))
)

# convert to PreTrainedTokenizerFast
tokenizer = PreTrainedTokenizerFast(
    tokenizer_object=tokenizer,
    unk_token='[UNK]',
    cls_token='[CLS]',
    sep_token='[SEP]',
    pad_token='[PAD]',
    mask_token='[MASK]'
)

python

# Test
test_str = "こんにちは。私は形態素解析器について研究をしています。"
tokenizer.convert_ids_to_tokens(tokenizer(test_str).input_ids)
# -> ['[CLS]','こ','##ん','##に','##ち','##は','##。','##私','##は','##形','##態','##素','##解','##析','##器','##に','##つ','##い','##て','##研','##究','##を','##し','##て','##い','##ま','##す','##。','[SEP]']

How to load the model

python

from transformers import AutoModelForMaskedLM
model = AutoModelForMaskedLM.from_pretrained("hitachi-nlp/bert-base_nothing-wordpiece")

See our repository for more details!

hitachi-nlp/bert-base-japanese_nothing-wordpiece

Japanese BERT-base (Nothing + WordPiece)

How to load the tokenizer

How to load the model

hitachi-nlp/
bert-base-japanese_nothing-wordpiece