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tolga-ozturk/
mGPT-nsp

Name: mGPT-nsp
Availability: InStock

next-sentence-prediction

gpt

wikipedia

2307.07331

text-generation-inference

endpoints_compatible

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mGPT-nsp

mGPT-nsp is fine-tuned for Next Sentence Prediction task on the wikipedia dataset using multilingual GPT model. It was introduced in this paper and first released on this page.

Model description

mGPT-nsp is a Transformer-based model which was fine-tuned for Next Sentence Prediction task on 11000 English and 11000 German Wikipedia articles. We use the same tokenization and vocabulary as the mT5 model.

Intended uses

Apply Next Sentence Prediction tasks. (compare the results with BERT models since BERT natively supports this task)
See how to fine-tune an mGPT2 model using our code
Check our paper to see its results

How to use

You can use this model directly with a pipeline for next sentence prediction. Here is how to use this model in PyTorch:

Necessary Initialization

python

from transformers import MT5Tokenizer, GPT2Model
import torch
from huggingface_hub import hf_hub_download

class ModelNSP(torch.nn.Module):
    def __init__(self, pretrained_model="THUMT/mGPT"):
        super(ModelNSP, self).__init__()
        self.core_model = GPT2Model.from_pretrained(pretrained_model)
        self.nsp_head = torch.nn.Sequential(torch.nn.Linear(self.core_model.config.hidden_size, 300),
                                            torch.nn.Linear(300, 300), torch.nn.Linear(300, 2))

    def forward(self, input_ids, attention_mask=None):
        return self.nsp_head(self.core_model(input_ids, attention_mask=attention_mask)[0].mean(dim=1)).softmax(dim=-1)

model = torch.nn.DataParallel(ModelNSP().eval())
model.load_state_dict(torch.load(hf_hub_download(repo_id="tolga-ozturk/mGPT-nsp", filename="model_weights.bin")))
tokenizer = MT5Tokenizer.from_pretrained("tolga-ozturk/mGPT-nsp")

Inference

python

batch_texts = [("In Italy, pizza is presented unsliced.", "The sky is blue."),
    ("In Italy, pizza is presented unsliced.", "However, it is served sliced in Turkey.")]
encoded_dict = tokenizer.batch_encode_plus(batch_text_or_text_pairs=batch_texts, truncation="longest_first",padding=True, return_tensors="pt", return_attention_mask=True, max_length=256)
print(torch.argmax(model(encoded_dict.input_ids, attention_mask=encoded_dict.attention_mask), dim=-1))

Training Metrics

BibTeX entry and citation info

bibtex

@misc{title={How Different Is Stereotypical Bias Across Languages?}, 
      author={Ibrahim Tolga Öztürk and Rostislav Nedelchev and Christian Heumann and Esteban Garces Arias and Marius Roger and Bernd Bischl and Matthias Aßenmacher},
      year={2023},
      eprint={2307.07331},
      archivePrefix={arXiv},
      primaryClass={cs.CL}
}

The work is done with Ludwig-Maximilians-Universität Statistics group, don't forget to check out their huggingface page for other interesting works!