Building a Local CAG System with Qwen3, Ollama and LangChain for Private Document AI Chatbots

Overview

Unlock the potential of creating a fully local Cache-Augmented Generation (CAG) chatbot, designed to handle your private documents securely and effectively. Dive into this comprehensive course using advanced tools such as Qwen3, Ollama, LangChain, and Streamlit.

Learn how to construct a robust AI chatbot infrastructure that operates without the need for external APIs or complex document retrieval systems. Perfect for those interested in Artificial Intelligence and Computer Science, this course offers a practical approach to chatbot technology.

Syllabus

• Introduction to Cache-Augmented Generation (CAG)
Overview of CAG systems
Benefits of using CAG for document AI chatbots
• Understanding the Tools
Qwen3: Overview and Features
Ollama: Overview and Integration
Introduction to LangChain
Streamlit Basics for UI Development
• Setting Up the Development Environment
Installing Qwen3, Ollama, and LangChain
Configuring necessary libraries and dependencies
Setting up Streamlit for local development
• Preparing Data for CAG
Identifying and collecting private documents
Data preprocessing techniques
Troubleshooting common data issues
• Building the Local CAG System
Designing the chatbot architecture
Integrating Qwen3 and Ollama
Implementing CAG with LangChain
• Developing a Streamlit Interface
Designing a user-friendly chatbot interface
Connecting the interface to the backend system
Testing user interactions
• Fine-tuning and Optimization
Techniques for improving CAG performance
Tailoring the system for specific document types
Conducting user testing and gathering feedback
• Ensuring Data Privacy and Security
Strategies for local data storage and processing
Implementing security measures in chatbot systems
• Final Project: Building Your Own AI Chatbot
Project requirements and expectations
Presentation and demonstration of projects
• Future Trends and Advanced Topics
Consideration of emerging tools and technologies
Opportunities for further learning and development

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Subjects

Computer Science