YT-Navigator: An AI-Powered Smart Search Tool for YouTube Content 201

What is YT-Navigator?

YT-Navigator is an AI-powered YouTube content discovery tool. It uses natural language processing and semantic search technology to help users quickly extract information from a large number of YouTube videos without having to watch them manually. YT-Navigator is ideal for researchers, students, content creators, and any users who need to quickly retrieve information from YouTube channels.

YT-Navigator Core Features:

1. Channel Management

• Users can connect to a channel by entering the YouTube channel's URL.

• The system automatically extracts the channel's title, description, and avatar information, and stores them in the database.

• Users can choose the number of videos to scan in the channel (up to 100), and the system will process the video metadata and transcripts in parallel.

2. Semantic Search

• Users can search across the channel's videos using natural language queries.

• The system combines semantic search (based on vector embeddings) and keyword search (using BM25) to provide comprehensive search results.

• Search results are re-ranked by relevance and return the most relevant video segments, along with precise timestamps to help users jump directly to the relevant content in the video.

3. Chat Feature

• Users can have an interactive conversation with the channel's content.

• The AI provides answers based on the video transcripts, supporting direct answers, static answers, or tool-assisted answers (by querying the vector database to retrieve information).

• This feature leverages the ReAct framework to ensure answer accuracy and relevance.

4. Secure Authentication

• Provides a secure login mechanism and independent session management to ensure the safety of user data.

YT-Navigator Use Cases

1. Research and Learning

• Researchers can quickly find video content on specific topics, saving time.

• Students can use the tool to find learning materials, such as course explanations, academic lectures, and more.

2. Content Creation

• Content creators can quickly get inspiration and find relevant ideas and materials.

• It can be used for video editing to quickly locate the segments needed.

3. Information Retrieval

• Users can quickly find answers to specific questions without watching the entire video.

• Suitable for scenarios where information needs to be retrieved quickly, such as news reporting and technical tutorials.

YT-Navigator Installation

1. Clone the repository:

git clone https://github.com/wassim249/YT-Navigator

2. Create a virtual environment and install dependencies:

python -m venv venv
source venv/bin/activate
pip install -e .

3. Ensure that a PostgreSQL database is running.

4. Create a .env file in the root directory (copy from the .env.example file).

5. Create Django database migrations and run migrations:

python manage.py makemigrations
python manage.py migrate

6. Start the development or production server:

make dev  # development environment
make prod  # production environment

How to Use YT-Navigator

1. Register and Log In: After opening the application, create an account and log in.

2. Connect a YouTube Channel: Enter the YouTube channel's URL on the homepage, and the system will automatically fetch the channel information.

3. Scan Videos: Choose the number of videos to scan (up to 100). Once the scan is complete, the channel content becomes available for searching and chatting.

4. Search for Information: Use the search feature to enter a natural language query, and the system will return relevant video segments, transcripts, and precise timestamps.

5. Chat Feature: Enter questions in the chat interface, and the AI will provide answers based on the channel content.

GitHub Repository:https://github.com/wassim249/YT-Navigator