support BertJapaneseTokenizer

README.md

@@ -1,3 +1,63 @@
 ---
+language: ja
 license: cc-by-sa-4.0
+datasets:
+- wikipedia
+- cc100
+mask_token: "[MASK]"
+widget:
+- text: "早稲田 大学 で 自然 言語 処理 を [MASK] する 。"
 ---
+
+# nlp-waseda/roberta-base-japanese
+
+## Model description
+
+This is a Japanese RoBERTa base model pretrained on Japanese Wikipedia and the Japanese portion of CC-100.
+
+## How to use
+
+You can use this model for masked language modeling as follows:
+```python
+from transformers import AutoTokenizer, AutoModelForMaskedLM
+tokenizer = AutoTokenizer.from_pretrained("nlp-waseda/roberta-base-japanese")
+model = AutoModelForMaskedLM.from_pretrained("nlp-waseda/roberta-base-japanese")
+
+sentence = '早稲田 大学 で 自然 言語 処理 を [MASK] する 。' # input should be segmented into words by Juman++ in advance
+encoding = tokenizer(sentence, return_tensors='pt')
+...
+```
+
+You can fine-tune this model on downstream tasks.
+
+## Tokenization
+
+`BertJapaneseTokenizer` now supports automatic tokenization for [Juman++](https://github.com/ku-nlp/jumanpp). However, if your dataset is large, you may take a long time since `BertJapaneseTokenizer` still does not supoort fast tokenization. You can still do the Juman++ tokenization by your self and use the old model [nlp-waseda/roberta-base-japanese](https://huggingface.co/nlp-waseda/roberta-base-japanese).
+
+Juman++ 2.0.0-rc3 was used for pretraining. Each word is tokenized into tokens by [sentencepiece](https://github.com/google/sentencepiece).
+
+## Vocabulary
+
+The vocabulary consists of 32000 tokens including words ([JumanDIC](https://github.com/ku-nlp/JumanDIC)) and subwords induced by the unigram language model of [sentencepiece](https://github.com/google/sentencepiece).
+
+## Training procedure
+
+This model was trained on Japanese Wikipedia (as of 20210920) and the Japanese portion of CC-100. It took a week using eight NVIDIA A100 GPUs.
+
+The following hyperparameters were used during pretraining:
+- learning_rate: 1e-4
+- per_device_train_batch_size: 256
+- distributed_type: multi-GPU
+- num_devices: 8
+- gradient_accumulation_steps: 2
+- total_train_batch_size: 4096
+- max_seq_length: 128
+- optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
+- lr_scheduler_type: linear
+- training_steps: 700000
+- warmup_steps: 10000
+- mixed_precision_training: Native AMP
+
+## Performance on JGLUE
+
+See the [Baseline Scores](https://github.com/yahoojapan/JGLUE#baseline-scores) of JGLUE.

config.json

@@ -0,0 +1,26 @@
+{
+  "architectures": [
+    "RobertaForMaskedLM"
+  ],
+  "attention_probs_dropout_prob": 0.1,
+  "bos_token_id": 2,
+  "classifier_dropout": null,
+  "eos_token_id": 3,
+  "hidden_act": "gelu",
+  "hidden_dropout_prob": 0.1,
+  "hidden_size": 768,
+  "initializer_range": 0.02,
+  "intermediate_size": 3072,
+  "layer_norm_eps": 1e-12,
+  "max_position_embeddings": 514,
+  "model_type": "roberta",
+  "num_attention_heads": 12,
+  "num_hidden_layers": 12,
+  "pad_token_id": 0,
+  "position_embedding_type": "absolute",
+  "torch_dtype": "float32",
+  "transformers_version": "4.12.5",
+  "type_vocab_size": 2,
+  "use_cache": true,
+  "vocab_size": 32000
+}

pytorch_model.bin

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+size 442692523

special_tokens_map.json

@@ -0,0 +1 @@
+{"bos_token": "[CLS]", "eos_token": "[SEP]", "unk_token": "[UNK]", "sep_token": "[SEP]", "pad_token": "[PAD]", "cls_token": "[CLS]", "mask_token": {"content": "[MASK]", "single_word": false, "lstrip": true, "rstrip": false, "normalized": true}}

spiece.model

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+size 810161

tokenizer_config.json

@@ -0,0 +1,25 @@
+{
+    "do_lower_case": false,
+    "remove_space": true,
+    "keep_accents": true,
+    "bos_token": "[CLS]",
+    "eos_token": "[SEP]",
+    "unk_token": "[UNK]",
+    "sep_token": "[SEP]",
+    "pad_token": "[PAD]",
+    "cls_token": "[CLS]",
+    "mask_token": {
+        "content": "[MASK]",
+        "single_word": false,
+        "lstrip": true,
+        "rstrip": false,
+        "normalized": true,
+        "__type": "AddedToken"
+    },
+    "sp_model_kwargs": {},
+    "special_tokens_map_file": null,
+    "tokenizer_class": "BertJapaneseTokenizer",
+    "word_tokenizer_type": "jumanpp",
+    "subword_tokenizer_type": "wordpiece",
+    "jumanpp_kwargs": {}
+}