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Pre-training Language Models for Japanese

License: MIT License

Python 100.00%
nlp natural-language-processing pytorch transformer implementation language-models language-model bert electra japanese

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Hi there 👋

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Python PyTorch

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language-pretraining's Issues

損失関数の値が得られない

事前学習モデルとソースコードの提供ありがとうございます。
提供していただいているソースコードを利用して追加学習を試みているのですが、以下のエラーが発生します。

場所:utils.trainer.py 727行目
エラー内容:KeyError 'loss'
スクリーンショット 2023-02-10 132551

outputs.lossの値を確認したところ、結果はNoneでした。
よって、717行目でlossが算出されていないことが原因であると考えていますが、解決できていません。

この問題を解決できることを望んでいます。
よろしくお願いいたします。

ipadic problem for 四半期連結会計期間末日満期手形

Thank you for releasing bert-small-japanese-fin and other Electra models for FinTech. But I've found they tokenize "四半期連結会計期間末日満期手形" in bad way:

>>> from transformers import AutoTokenizer
>>> tokenizer=AutoTokenizer.from_pretrained("izumi-lab/bert-small-japanese-fin")
>>> tokenizer.tokenize("四半期連結会計期間末日満期手形")
['四半期', '連結', '会計', '期間', '末日', '満期', '手形']
>>> tokenizer.tokenize("第3四半期連結会計期間末日満期手形")
['第', '3', '四半期連結会計期間末日満期手形']

This is because of the bug of ipadic on 名詞,数 tokenization for 漢字-strings which begin with 漢数字.

>>> import fugashi,ipadic
>>> parser=fugashi.GenericTagger(ipadic.MECAB_ARGS).parse
>>> print(parser("四半期連結会計期間末日満期手形"))
四半期  名詞,一般,*,*,*,*,四半期,シハンキ,シハンキ
連結    名詞,サ変接続,*,*,*,*,連結,レンケツ,レンケツ
会計    名詞,サ変接続,*,*,*,*,会計,カイケイ,カイケイ
期間    名詞,一般,*,*,*,*,期間,キカン,キカン
末日    名詞,一般,*,*,*,*,末日,マツジツ,マツジツ
満期    名詞,一般,*,*,*,*,満期,マンキ,マンキ
手形    名詞,一般,*,*,*,*,手形,テガタ,テガタ
EOS
>>> print(parser("第3四半期連結会計期間末日満期手形"))
第      接頭詞,数接続,*,*,*,*,第,ダイ,ダイ
3       名詞,数,*,*,*,*,*
四半期連結会計期間末日満期手形  名詞,数,*,*,*,*,*
EOS

I recommend you to use another tokenizer than BertJapaneseTokenizer+ipadic. See detail in my diary written in Japanese.

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