README.md

metadata

title: Multimodal Sentiment Analysis
emoji: 🧠
colorFrom: blue
colorTo: purple
sdk: streamlit
sdk_version: 1.48.1
app_file: app.py
pinned: false

Multimodal Sentiment Analysis

A comprehensive Streamlit application that combines three different sentiment analysis models: text, audio, and vision-based sentiment analysis. The project demonstrates how to integrate multiple AI models for comprehensive sentiment understanding across different modalities.

What is it?

This project implements a fused sentiment analysis system that combines predictions from three independent models:

1. Text Sentiment Analysis

• Model: TextBlob NLP library
• Capability: Analyzes text input for positive, negative, or neutral sentiment
• Status: ✅ Fully integrated and ready to use

2. Audio Sentiment Analysis

• Model: Fine-tuned Wav2Vec2-base model
• Training Data: RAVDESS + CREMA-D emotional speech datasets
• Capability: Analyzes audio files and microphone recordings for sentiment
• Features:
  • File upload support (WAV, MP3, M4A, FLAC)
  • Direct microphone recording (max 5 seconds)
  • Automatic preprocessing (16kHz sampling, 5s max duration)
• Status: ✅ Fully integrated and ready to use

3. Vision Sentiment Analysis

• Model: Fine-tuned ResNet-50 model
• Training Data: FER2013 facial expression dataset
• Capability: Analyzes images for facial expression-based sentiment
• Features:
  • File upload support (PNG, JPG, JPEG, BMP, TIFF)
  • Camera capture functionality
  • Automatic face detection and preprocessing
  • Grayscale conversion and 224x224 resize
• Status: ✅ Fully integrated and ready to use

4. Fused Model

• Approach: Combines predictions from all three models
• Capability: Provides comprehensive sentiment analysis across modalities
• Status: ✅ Fully integrated and ready to use

Project Structure

sentiment-fused/
├── app.py                          # Main Streamlit application
├── simple_model_manager.py         # Model management and Google Drive integration
├── requirements.txt                # Python dependencies
├── pyproject.toml                 # Project configuration
├── Dockerfile                     # Container deployment
├── notebooks/                     # Development notebooks
│   ├── audio_sentiment_analysis.ipynb    # Audio model development
│   └── vision_sentiment_analysis.ipynb   # Vision model development
└── models/                        # Model storage directory

Key Features

• Real-time Analysis: Instant sentiment predictions with confidence scores
• Smart Preprocessing: Automatic file format handling and preprocessing
• Multi-Page Interface: Clean navigation between different sentiment analysis modes
• Model Management: Automatic model downloading from Google Drive
• File Support: Multiple audio and image format support
• Camera & Microphone: Direct input capture capabilities

Prerequisites

• Python 3.9 or higher
• 4GB+ RAM (for model loading)
• Internet connection (for initial model download)

Installation

1. Clone the repository:

   git clone <your-repo-url>
   cd sentiment-fused
   

2. Create a virtual environment (recommended):

   python -m venv venv
   
   # On Windows
   venv\Scripts\activate
   
   # On macOS/Linux
   source venv/bin/activate
   

3. Install dependencies:

   pip install -r requirements.txt
   

4. Set up environment variables: Create a .env file in the project root with:

   VISION_MODEL_DRIVE_ID=your_google_drive_vision_model_file_id_here
   AUDIO_MODEL_DRIVE_ID=your_google_drive_audio_model_file_id_here
   VISION_MODEL_FILENAME=resnet50_model.pth
   AUDIO_MODEL_FILENAME=wav2vec2_model.pth
   

Running Locally

1. Start the Streamlit application:

   streamlit run app.py
   

2. Open your browser and navigate to the URL shown in the terminal (usually http://localhost:8501)

3. Navigate between pages using the sidebar:

   • 🏠 Home: Overview and welcome page
   • 📝 Text Sentiment: Analyze text with TextBlob
   • 🎵 Audio Sentiment: Analyze audio files or record with microphone
   • 🖼️ Vision Sentiment: Analyze images or capture with camera
   • 🔗 Fused Model: Combine all three models

Model Development

The project includes Jupyter notebooks that document the development process:

Audio Model (notebooks/audio_sentiment_analysis.ipynb)

• Wav2Vec2-base fine-tuning on RAVDESS + CREMA-D datasets
• Emotion-to-sentiment mapping (happy/surprised → positive, sad/angry/fearful/disgust → negative, neutral/calm → neutral)
• Audio preprocessing pipeline (16kHz sampling, 5s max duration)

Vision Model (notebooks/vision_sentiment_analysis.ipynb)

• ResNet-50 fine-tuning on FER2013 dataset
• Emotion-to-sentiment mapping (happy/surprise → positive, angry/disgust/fear/sad → negative, neutral → neutral)
• Image preprocessing pipeline (face detection, grayscale conversion, 224x224 resize)

Technical Implementation

Model Management

• SimpleModelManager class handles model downloading from Google Drive
• Automatic model caching and version management
• Environment variable configuration for model URLs

Preprocessing Pipelines

• Audio: Automatic resampling, duration limiting, feature extraction
• Vision: Face detection, cropping, grayscale conversion, normalization
• Text: Direct TextBlob processing

Streamlit Integration

• Multi-page application with sidebar navigation
• File upload widgets with format validation
• Real-time camera and microphone input
• Custom CSS styling for modern UI

Deployment

Docker Deployment

# Build the container
docker build -t sentiment-fused .

# Run the container
docker run -p 7860:7860 sentiment-fused

The application will be available at http://localhost:7860

Local Development

# Run with custom port
streamlit run app.py --server.port 8502

# Run with custom address
streamlit run app.py --server.address 0.0.0.0

Troubleshooting

Common Issues

1. Model Loading Errors:

   • Ensure environment variables are set correctly
   • Check internet connection for model downloads
   • Verify sufficient RAM (4GB+ recommended)

2. Dependency Issues:

   • Use virtual environment to avoid conflicts
   • Install PyTorch with CUDA support if using GPU
   • Ensure OpenCV is properly installed for face detection

3. Performance Issues:

   • Large audio/image files may cause memory issues
   • Consider file size limits for better performance
   • GPU acceleration available for PyTorch models

Model Testing

# Test vision model
python -c "from simple_model_manager import SimpleModelManager; m = SimpleModelManager(); print('Vision model:', m.load_vision_model()[0] is not None)"

# Test audio model
python -c "from simple_model_manager import SimpleModelManager; m = SimpleModelManager(); print('Audio model:', m.load_audio_model()[0] is not None)"

Dependencies

Key libraries used:

• Streamlit: Web application framework
• PyTorch: Deep learning framework
• Transformers: Hugging Face model library
• OpenCV: Computer vision and face detection
• Librosa: Audio processing
• TextBlob: Natural language processing
• Gdown: Google Drive file downloader

What This Project Demonstrates

1. Multimodal AI Integration: Combining text, audio, and vision models
2. Model Management: Automated downloading and caching of pre-trained models
3. Real-time Processing: Live audio recording and camera capture
4. Smart Preprocessing: Automatic format conversion and optimization
5. Modern Web UI: Professional Streamlit application with custom styling
6. Production Ready: Docker containerization and deployment

This project serves as a comprehensive example of building production-ready multimodal AI applications with modern Python tools and frameworks.