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README.md
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FactChecker is a web application that detects fake news using various machine learning models.
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The system analyzes text input and predicts whether the content is likely to be real or fake news,
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providing confidence scores and visualizations to help users understand the results.
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---
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title: FactChecker
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emoji: π
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colorFrom: pink
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colorTo: red
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sdk: docker
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pinned: false
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license: mit
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short_description: 'FactChecker: Fake News Detector'
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---
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# <img src="build/logo.png" alt="FactChecker Logo" width="30" height="30"> FactChecker: Fake News Detection Web Application
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FactChecker is a web application that detects fake news using various machine learning models.
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The system analyzes text input and predicts whether the content is likely to be real or fake news,
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providing confidence scores and visualizations to help users understand the results.
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## Features
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- **Multiple ML Models**: Choose between three different models or use all of them together:
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- Logistic Regression (Accuracy: 90.42%, F1 Score: 87.62%)
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- Random Forest (Accuracy: 90.83%, F1 Score: 87.52%)
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- DistilBERT (Accuracy: 91.00%, F1 Score: 88.45%)
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- **Ensemble Approach**: When selecting "All Models," the system combines predictions using a voting mechanism for more robust results
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- **Real-time Analysis**: Instantly assess the credibility of news articles or statements
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- **Confidence Scores**: View the model's level of certainty in its predictions
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- **Visual Interface**: Color-coded results (green for real, red for fake) for intuitive understanding
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## Technology Stack
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### Backend
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- Python 3.11 with Flask 2.0.1
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- NLTK 3.9.1 for natural language processing
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- Scikit-learn 1.6.1 for traditional machine learning models
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- PyTorch 2.6.0 and Transformers 4.49.0 for the DistilBERT model
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- Gunicorn 20.1.0 for production deployment
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**Verify the versions before running the BACKEND**
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### Frontend
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- React.js for the user interface
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- Modern JavaScript (ES6+)
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- CSS for styling
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### Data Processing
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- Pandas and NumPy for data manipulation
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- TF-IDF Vectorization for feature extraction
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- Regular expressions for text cleaning
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## Project Structure
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FactChecker/
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βββ build/ # React build files(compiled frontend)
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β βββ static/
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β β βββ css/ # Compiled CSS
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β β βββ js/ # Compiled JavaScript
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β βββ asset-manifest.json
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β βββ index.html # Main HTML file
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β βββ logo.ico
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β βββ logo.png
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β βββ manifest.json
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βββ model_training/ # Model training materials
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β βββ visualizations/ # Generated visualization images
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β βββ model_training.ipynb # Jupyter notebook for model training
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βββ models/ # Saved ML models
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β βββ tfidf_vectorizer.pkl # TF-IDF vectorizer
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β βββ lr_model.pkl # Logistic Regression model
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β βββ rf_model.pkl # Random Forest model
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β βββ distilbert_model.pt # DistilBERT model
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βββ .gitattributes
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βββ Dockerfile # Docker configuration
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βββ README.md
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βββ app.py # Flask application
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βββ requirements.txt # Python dependencies
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### Steps
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#### For Backend:
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1. Clone the repository
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2. Create a virtual environment and install the dependencies.
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1. pip install -r requirements.txt
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3. Download NLTK resources:
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1. python -c "import nltk; nltk.download('punkt'); nltk.download('stopwords'); nltk.download('wordnet')"
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4. Run the application
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1. python app.py
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#### For Frontend:
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1. Install dependencies:
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1. npm install
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3. Build the frontend:
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1. npm run build
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#### Model Training
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To retrain the models:
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1. Upload the notebook in Google Colab.
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2. Download the ISOT(true.csv, fake.csv) datasets and upload it to the google drive.
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3. Change the runtime type to ideally run GPU instance.
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4. Activate the runtime.
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5. Run the Cells.
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