🤖 AI FAQ Assistant

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📌 Project Overview

AI FAQ Assistant is a modern web-based chatbot built using Python, Flask, and Natural Language Processing (NLP).

Instead of matching exact keywords, the chatbot uses TF-IDF Vectorization and Cosine Similarity to understand user questions and retrieve the most relevant answer from a JSON knowledge base.

The application also displays a Confidence Score, helping users understand how closely their question matched the stored knowledge.

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✨ Features

• 🤖 AI-powered FAQ Assistant
• 🌐 Flask Web Application
• 🧠 NLP Text Preprocessing
• 📊 TF-IDF Vectorization
• 📐 Cosine Similarity Matching
• 📁 JSON Knowledge Base
• 📈 Confidence Score
• 🌙 Dark Mode
• 💬 Typing Animation
• 💡 Suggested Questions
• 🗑️ Clear Chat
• 📱 Responsive User Interface
• 🎨 Glassmorphism Design

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🏗 System Architecture

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🛠 Tech Stack

Technology	Purpose
Python	Backend Programming
Flask	Web Framework
HTML5	Frontend
CSS3	User Interface
JavaScript	Client-side Logic
NLTK	NLP Preprocessing
Scikit-learn	TF-IDF & Cosine Similarity
JSON	Knowledge Base

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📂 Project Structure

AI_FAQ_Assistant/

│
├── static/
│   ├── css/
│   ├── js/
│   └── images/
│
├── templates/
│   └── index.html
│
├── utils/
│   ├── preprocess.py
│   └── similarity.py
│
├── screenshots/
│
├── app.py
├── faq_data.json
├── requirements.txt
├── README.md
└── .gitignore

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🚀 Installation

Clone the repository

git clone https://github.com/dasu07988/AI_FAQ_Assistant.git

Go to the project folder

cd AI_FAQ_Assistant

Create Virtual Environment

python -m venv venv

Activate Environment

Windows

venv\Scripts\activate

Install Dependencies

pip install -r requirements.txt

Run the Application

python app.py

Open

http://127.0.0.1:5000

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📸 Screenshots

Home Page

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Chat Demo

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Dark Mode

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🧠 NLP Workflow

User Question
      │
      ▼
Text Preprocessing
      │
      ▼
TF-IDF Vectorization
      │
      ▼
Cosine Similarity
      │
      ▼
FAQ Knowledge Base
      │
      ▼
Best Answer
      │
      ▼
Confidence Score

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🔮 Future Improvements

• OpenAI API Integration
• Gemini API Integration
• Voice Input
• Voice Output
• Database Support
• User Authentication
• Multi-language Support
• Admin Dashboard
• Conversation History
• AI Memory

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👨‍💻 Author

Dasuni Jayasundara

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⭐ Support

If you found this project useful, consider giving it a ⭐ on GitHub.

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📄 License

This project is licensed under the MIT License.