paraphraser / app.py
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Update app.py
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import gradio as gr
import torch
from transformers import AutoTokenizer, T5ForConditionalGeneration, pipeline
from sentence_transformers import SentenceTransformer, util
import random
import re
import nltk
from nltk.tokenize import sent_tokenize
import warnings
from transformers import logging
import os
import tensorflow as tf
import requests
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
os.environ['TF_ENABLE_ONEDNN_OPTS'] = '0'
warnings.filterwarnings("ignore", category=FutureWarning)
warnings.filterwarnings("ignore", category=UserWarning)
warnings.filterwarnings("ignore")
logging.set_verbosity_error()
tf.get_logger().setLevel('ERROR')
nltk.download('punkt')
GROQ_API_KEY="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"
class TextEnhancer:
def __init__(self):
self.device = "cuda" if torch.cuda.is_available() else "cpu"
print(self.device)
self.paraphrase_tokenizer = AutoTokenizer.from_pretrained("prithivida/parrot_paraphraser_on_T5")
self.paraphrase_model = T5ForConditionalGeneration.from_pretrained("prithivida/parrot_paraphraser_on_T5").to(self.device)
print("paraphraser loaded")
self.grammar_pipeline = pipeline(
"text2text-generation",
model="Grammarly/coedit-large",
device=0 if self.device == "cuda" else -1
)
print("grammar check loaded")
self.similarity_model = SentenceTransformer('paraphrase-MiniLM-L6-v2').to(self.device)
print("sementics model loaded")
def _evaluate_with_groq(self, passage=""):
if not passage:
raise ValueError("Input passage cannot be empty.")
# Groq API setup
headers = {
"Authorization": f"Bearer {GROQ_API_KEY}", # Replace GROQ_API_KEY with your actual API key.
"Content-Type": "application/json"
}
payload = {
"model": "llama3-70b-8192",
"messages": [
{
"role": "system",
"content": "Paraphrase this sentence to better suit it as an introductory sentence to a student's Statement of purpose. Ensure that the vocabulary and grammar is upto par. ONLY return the raw paraphrased sentence and nothing else.IF IT IS a empty string, return empty string "
},
{
"role": "user",
"content": f"Here is the passage: {passage}"
}
],
"temperature": 1.0,
"max_tokens": 8192
}
# Sending request to Groq API
print("Sending request to Groq API...")
response = requests.post("https://api.groq.com/openai/v1/chat/completions", json=payload, headers=headers)
print("Response received.")
# Handling the response
if response.status_code == 200:
data = response.json()
try:
segmented_text = data.get("choices", [{}])[0].get("message", {}).get("content", "")
print("sentence paraphrase processed successfully.")
print(segmented_text)
return segmented_text
except (IndexError, KeyError) as e:
raise ValueError(f"Unexpected response structure from Groq API. Error: {str(e)}")
else:
raise ValueError(f"Groq API error: {response.status_code}, {response.text}")
def _correct_formatting(self, sentence):
cleaned_sentence = re.sub(r'([.,!?])\1+', r'\1', sentence)
cleaned_sentence = cleaned_sentence.strip()
return cleaned_sentence
def enhance_text(self, text, min_similarity=0.8, max_variations=3):
sent=0
enhanced_sentences = []
sentences = sent_tokenize(text)
total_words = sum(len(sentence.split()) for sentence in sentences)
print(f"generated: {total_words}")
for sentence in sentences:
if not sentence.strip():
continue
sent+=1
inputs = self.paraphrase_tokenizer(
f"paraphrase: {sentence}",
return_tensors="pt",
padding=True,
max_length=150,
truncation=True
).to(self.device)
outputs = self.paraphrase_model.generate(
**inputs,
max_length=len(sentence.split()) + 20,
num_return_sequences=max_variations,
num_beams=max_variations,
temperature=0.7
)
paraphrases = [
self.paraphrase_tokenizer.decode(output, skip_special_tokens=True)
for output in outputs
]
sentence_embedding = self.similarity_model.encode(sentence)
paraphrase_embeddings = self.similarity_model.encode(paraphrases)
similarities = util.cos_sim(sentence_embedding, paraphrase_embeddings)
valid_paraphrases = [
para for para, sim in zip(paraphrases, similarities[0])
if sim >= min_similarity
]
if sent in {1, len(sentences)} and valid_paraphrases:
gemini_feedback = self._evaluate_with_groq(valid_paraphrases[0])
if gemini_feedback.strip():
valid_paraphrases[0] = gemini_feedback.strip()
if valid_paraphrases:
corrected = self.grammar_pipeline(
valid_paraphrases[0],
max_length=150,
num_return_sequences=1
)[0]["generated_text"]
corrected = self._humanize_text(corrected)
corrected=self._correct_formatting(corrected)
enhanced_sentences.append(corrected)
else:
sentence=self._correct_formatting(sentence)
enhanced_sentences.append(sentence)
enhanced_text = ". ".join(sentence.rstrip(".") for sentence in enhanced_sentences) + "."
return enhanced_text
def _humanize_text(self, text):
contractions = {"can't": "cannot", "won't": "will not", "I'm": "I am", "it's": "it is"}
words = text.split()
text = " ".join([contractions.get(word, word) if random.random() > 0.9 else word for word in words])
if random.random() > 0.7:
text = text.replace(" and ", ", and ")
# Minor variations in sentence structure
if random.random() > 0.5:
text = text.replace(" is ", " happens to be ")
return text
def create_interface():
enhancer = TextEnhancer()
def process_text(text, similarity_threshold=0.75):
try:
enhanced = enhancer.enhance_text(
text,
min_similarity=similarity_threshold / 100,
max_variations=10
)
print("grammar enhanced")
return enhanced
except Exception as e:
return f"Error: {str(e)}"
interface = gr.Blocks()
with interface:
with gr.Row(elem_id="header", variant="panel"):
gr.HTML("""
<div style="display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 20px;">
<img src="https://raw.githubusercontent.com/juicjaane/blueai/main/logo_2.jpg" style="width: 50px; height: 50px;">
<h1 style="color: gold; font-size: 2em; margin: 0;">Konect U</h1>
</div>
""")
with gr.Row():
with gr.Column(scale=1):
gr.Markdown("### Your SoP")
input_text = gr.Textbox(label="Input", placeholder="Enter SoP to Paraphrase...", lines=10)
submit_button = gr.Button("Paraphrase")
with gr.Column(scale=1):
gr.Markdown("### Paraphrased SoP")
enhanced_text = gr.Textbox(label="SoP", lines=10)
submit_button.click(process_text, inputs=[input_text], outputs=enhanced_text)
return interface
if __name__ == "__main__":
interface = create_interface()
interface.launch(share=True)