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PersianTextFormalizer

This model is fine-tuned to generate formal text from informal text based on the input provided. It has been fine-tuned on [Mohavere Dataset] (Takalli vahideh, Kalantari, Fateme, Shamsfard, Mehrnoush, Developing an Informal-Formal Persian Corpus, 2022.) using the pretrained model persian-t5-formality-transfer.

Evaluation Metrics

Metric Basic Model Base Persian T5 Our Model
BLEU-1 0.524 0.212 0.636
BLEU-2 0.358 0.137 0.511
BLEU-3 0.254 0.096 0.416
BLEU-4 0.18 0.068 0.337
Bert-Score Precision 0.671 0.537 0.797
Bert-Score Recall 0.712 0.570 0.805
Bert-Score F1 Score 0.690 0.549 0.800
ROUGE-1 F1 Score 0.553 - 0.645
ROUGE-2 F1 Score 0.274 - 0.427
ROUGE-l F1 Score 0.522 - 0.628

Usage


from transformers import (T5ForConditionalGeneration, AutoTokenizer, pipeline)
import torch

model = T5ForConditionalGeneration.from_pretrained('parsi-ai-nlpclass/PersianTextFormalizer')
tokenizer = AutoTokenizer.from_pretrained('parsi-ai-nlpclass/PersianTextFormalizer')

pipe = pipeline(task='text2text-generation', model=model, tokenizer=tokenizer)
def test_model(text):
  device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')  
  model.to(device) 

  inputs = tokenizer.encode("informal: " + text, return_tensors='pt', max_length=128, truncation=True, padding='max_length')
  inputs = inputs.to(device) 

  outputs = model.generate(inputs, max_length=128, num_beams=4)
  print("Output:", tokenizer.decode(outputs[0], skip_special_tokens=True))  

text = "به یکی از دوستام میگم که چرا اینکار رو میکنی چرا به فکرت نباید برسه "
print("Original:", text)
test_model(text)

# output:  .به یکی از دوستانم می گویم که چرا اینکار را می کنی چرا به فکرت نباید برسد

text = "کجا مخفیش کردی؟"
print("Original:", text)
test_model(text)

# output:   کجا او را پنهان کرده ای؟

text = "نمیکشنمون که"
print("Original:", text)
test_model(text)

# output: .ما را که نمی‌کشند.
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