通过tokenizer.add_special_tokens() 添加新的 special tokens在tokenizer中,再使用model.resize_token_embeddings() 随机初始化权重。 目前大部分LLM模型已经无法通过直接修改vocab.txt实现添加新的自定义token,方法1已经失效, 方法2和3的效果是等价的。 model.resize_token_embeddings() model.resize_token_embeddings(...
https://discuss.huggingface.co/t/how-to-add-all-standard-special-tokens-to-my-tokenizer-and-model/21529 seems useful:https://huggingface.co/docs/transformers/v4.21.1/en/main_classes/model#transformers.PreTrainedModel.resize_token_embeddings I want to add standard tokens by add...
trainers, Tokenizer, Regex # Dataset ds = load_dataset('HuggingFaceFW/fineweb', streaming = True)['train'] texts = [sample['text'] for sample in ds.take(10_000)] # Init Tokenizer tokenizer = Tokenizer(models.BPE(unk_token="<UNK>", byte_fallback = True)) # Special tokens special_t...
special_tokens_dict = { "additional_special_tokens": ['[ABC]', '[DEF]', '[GHI]'], } num_added_toks = tokenizer.add_special_tokens(special_tokens_dict) model.resize_token_embeddings(len(tokenizer)) unk_tok_emb = model.transformer.wte.weight.data[tokenizer.unk_token_id, :] for i i...
In this short article, you’ll learn how to add new tokens to the vocabulary of a huggingface transformer model. TLDR; just give me the codeCopy from transformers import AutoTokenizer, AutoModel # pick the model type model_type = "roberta-base" tokenizer = AutoTokenizer.from_pretrained(model...
❓ Questions & Help Details When I read the code of tokenizer, I have a problem if I want to use a pretrained model in NMT task, I need to add some tag tokens, such as '2English' or '2French'. I think these tokens are special tokens, so w...
In default, it\'s the same as the environment variable `HF_DATASETS_CACHE`, whose default value is usually "~/.cache/huggingface/datasets". If this argument is set to a valid path by users, it will override the default cache dir use_checkpoint: false # whether to use the checkpoint ...
Is there a way to use Huggingface pretrained tokenizer with wordpiece prefix? 1 How to add new token to T5 tokenizer which uses sentencepieace 1 how to add tokens in vocab.txt which decoded as [UNK] bert tokenizer 0 Bert Tokenizer add_token function not working properly 1 how to use...
31 Huggingface saving tokenizer 3 Unable to find the word that I added to the Huggingface Bert tokenizer vocabulary 6 How to untokenize BERT tokens? 1 how to use BertTokenizer to load Tokenizer model? 12 How to add new special token to the tokenizer? 4 Adding new tokens to BERT/RoB...
Feature request Today, when you add new tokens to the vocabulary (e.g. <|im_start|> and <|im_end|>), you need to also add embed_tokens and lm_head to the modules_to_save kwarg. This, as far as I can tell, unfreezes all token embeddings. ...