Bert Election2020 Twitter Stance Biden KE MLM

🚀 Pre-trained BERT on Twitter US Election 2020 for Stance Detection towards Joe Biden (KE-MLM)

This project provides pre-trained weights for the KE-MLM model, which is used for stance detection towards Joe Biden in the context of the 2020 US Twitter election.

✨ Features

• Pre-trained on over 5 million English tweets about the 2020 US Presidential Election.
• Fine-tuned using stance-labeled data for stance detection towards Joe Biden.
• Initialized with BERT-base and trained with a normal MLM objective, with the classification layer fine-tuned for stance detection.

📦 Installation

No specific installation steps are provided in the original document.

💻 Usage Examples

Basic Usage

from transformers import AutoTokenizer, AutoModelForSequenceClassification
import torch
import numpy as np

# choose GPU if available
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")

# select mode path here
pretrained_LM_path = "kornosk/bert-election2020-twitter-stance-biden-KE-MLM"

# load model
tokenizer = AutoTokenizer.from_pretrained(pretrained_LM_path)
model = AutoModelForSequenceClassification.from_pretrained(pretrained_LM_path)

id2label = {
    0: "AGAINST",
    1: "FAVOR",
    2: "NONE"
}

##### Prediction Neutral #####
sentence = "Hello World."
inputs = tokenizer(sentence.lower(), return_tensors="pt")
outputs = model(**inputs)
predicted_probability = torch.softmax(outputs[0], dim=1)[0].tolist()

print("Sentence:", sentence)
print("Prediction:", id2label[np.argmax(predicted_probability)])
print("Against:", predicted_probability[0])
print("Favor:", predicted_probability[1])
print("Neutral:", predicted_probability[2])

##### Prediction Favor #####
sentence = "Go Go Biden!!!"
inputs = tokenizer(sentence.lower(), return_tensors="pt")
outputs = model(**inputs)
predicted_probability = torch.softmax(outputs[0], dim=1)[0].tolist()

print("Sentence:", sentence)
print("Prediction:", id2label[np.argmax(predicted_probability)])
print("Against:", predicted_probability[0])
print("Favor:", predicted_probability[1])
print("Neutral:", predicted_probability[2])

##### Prediction Against #####
sentence = "Biden is the worst."
inputs = tokenizer(sentence.lower(), return_tensors="pt")
outputs = model(**inputs)
predicted_probability = torch.softmax(outputs[0], dim=1)[0].tolist()

print("Sentence:", sentence)
print("Prediction:", id2label[np.argmax(predicted_probability)])
print("Against:", predicted_probability[0])
print("Favor:", predicted_probability[1])
print("Neutral:", predicted_probability[2])

# please consider citing our paper if you feel this is useful :)

📚 Documentation

Training Data

This model is pre-trained on over 5 million English tweets about the 2020 US Presidential Election. Then fine-tuned using our stance-labeled data for stance detection towards Joe Biden.

Training Objective

This model is initialized with BERT-base and trained with normal MLM objective with classification layer fine-tuned for stance detection towards Joe Biden.

Usage

This pre-trained language model is fine-tuned to the stance detection task specifically for Joe Biden. Please see the official repository for more detail.

📄 License

This project is licensed under the GPL-3.0 license.

📖 Reference

• Knowledge Enhance Masked Language Model for Stance Detection, NAACL 2021.

📚 Citation

@inproceedings{kawintiranon2021knowledge,
    title={Knowledge Enhanced Masked Language Model for Stance Detection},
    author={Kawintiranon, Kornraphop and Singh, Lisa},
    booktitle={Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies},
    year={2021},
    publisher={Association for Computational Linguistics},
    url={https://www.aclweb.org/anthology/2021.naacl-main.376}
}