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Model: line-corporation/japanese-large-lm-3.6b
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---
license: apache-2.0
datasets:
- wikipedia
- mc4
- cc100
- oscar
language:
- ja
---
# japanese-large-lm-3.6b
This repository provides a 3.6B parameters Japanese language model, trained by [LINE Corporation](https://linecorp.com/ja/).
[Tech Blog](https://engineering.linecorp.com/ja/blog/3.6-billion-parameter-japanese-language-model) explains details.
## How to use
```
import torch
from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline, set_seed
model = AutoModelForCausalLM.from_pretrained("line-corporation/japanese-large-lm-3.6b", torch_dtype=torch.float16)
tokenizer = AutoTokenizer.from_pretrained("line-corporation/japanese-large-lm-3.6b", use_fast=False)
generator = pipeline("text-generation", model=model, tokenizer=tokenizer, device=0)
set_seed(101)
text = generator(
"おはようございます、今日の天気は",
max_length=30,
do_sample=True,
pad_token_id=tokenizer.pad_token_id,
num_return_sequences=5,
)
for t in text:
print(t)
# 下記は生成される出力の例
# [{'generated_text': 'おはようございます、今日の天気は雨模様ですね。梅雨のこの時期の 朝は洗濯物が乾きにくいなど、主婦にとっては悩みどころですね。 では、'},
# {'generated_text': 'おはようございます、今日の天気は晴れ。 気温は8°C位です。 朝晩は結構冷え込むようになりました。 寒くなってくると、...'},
# {'generated_text': 'おはようございます、今日の天気は曇りです。 朝起きたら雪が軽く積もっていた。 寒さもそれほどでもありません。 日中は晴れるみたいですね。'},
# {'generated_text': 'おはようございます、今日の天気は☁のち☀です。 朝の気温5°C、日中も21°Cと 暖かい予報です'},
# {'generated_text': 'おはようございます、今日の天気は晴天ですが涼しい1日です、気温は午後になり低くなり25°Cくらい、風も強いようですので、'}]
```
## Model architecture
| Model | Vocab size | Architecture | Position type | Layers | Hidden dim | Attention heads |
| :---: | :--------: | :----------- | :-----------: | :----: | :--------: | :-------------: |
| 1.7B | 51200 | GPT2 | Absolute | 24 | 2304 | 24 |
| 3.6B | 51200 | GPTNeoX | RoPE | 30 | 3072 | 32 |
## Training Corpus
Our training corpus consists of the Japanese portions of publicly available corpus such as C4, CC-100, and Oscar.
We also incorporated the Web texts crawled by in-house system.
The total size of our training corpus is about 650 GB.
The trained model achieves 7.50 perplexity on the internal validation sets of Japanese C4.
## Tokenization
We use a sentencepiece tokenizer with a unigram language model and byte-fallback.
We **do not** apply pre-tokenization with Japanese tokenizer.
Thus, a user may directly feed raw sentences into the tokenizer.
## License
[Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)

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{
"architectures": [
"GPTNeoXForCausalLM"
],
"bos_token_id": 2,
"classifier_dropout": 0.1,
"eos_token_id": 2,
"hidden_act": "gelu",
"hidden_size": 3072,
"initializer_range": 0.02,
"intermediate_size": 12288,
"layer_norm_eps": 1e-05,
"max_position_embeddings": 2048,
"model_type": "gpt_neox",
"num_attention_heads": 32,
"num_hidden_layers": 30,
"rotary_emb_base": 10000,
"rotary_pct": 1.0,
"tie_word_embeddings": true,
"torch_dtype": "float16",
"transformers_version": "4.29.2",
"use_cache": true,
"use_parallel_residual": false,
"vocab_size": 51200
}

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{
"extra_ids": 0,
"do_lower_case": false,
"keep_accents": true,
"bos_token": "<s>",
"eos_token": "</s>",
"unk_token": "<unk>",
"pad_token": "<pad>",
"mask_token": "<mask>",
"cls_token": "<cls>",
"sep_token": "<sep>",
"sp_model_kwargs": {},
"special_tokens_map_file": null,
"tokenizer_class": "T5Tokenizer"
}