Welcome to the final unit of our course on building a RAG-powered chatbot! Throughout this course, you've built a complete Retrieval-Augmented Generation system from the ground up. You've created a document processor for handling document retrieval, developed a chat engine for managing conversations, and integrated these components into a unified RAG chatbot. Now it's time to put your creation to work on a practical application.

In this lesson, we'll explore how to use your RAG chatbot to analyze a collection of fictional interplanetary agreements. This scenario mimics real-world document analysis tasks that professionals often face — reviewing multiple complex documents, extracting specific information, and making comparisons across documents. While our documents are fictional and space-themed, the techniques you'll learn apply directly to real-world use cases like legal document review, policy analysis, or research synthesis.

Our interplanetary agreements dataset consists of three fictional documents:

• An Interplanetary Trade Agreement
• A Space Exploration Partnership
• A Galactic Environmental Protection Pact

These documents contain various clauses, terms, and provisions that our RAG chatbot will help us analyze. By the end of this lesson, you'll understand how to apply your RAG chatbot to extract insights from document collections efficiently.

Before diving into document analysis, let's set up our RAG chatbot and plan our approach. We'll use the RAGChatbot class we built in the previous lesson, which integrates our document processor and chat engine components.

First, let's import our chatbot and initialize it:

With our chatbot initialized, we need to plan our document analysis workflow. For complex document analysis tasks, it's often helpful to follow a structured approach:

1. Start with single document analysis to understand individual documents.
2. Progress to comparative analysis between documents.
3. Perform comprehensive analysis across all documents.
4. Use targeted analysis for specific inquiries.

This progressive approach helps build a comprehensive understanding of the document collection while allowing for focused analysis when needed. It also makes efficient use of our RAG system's capabilities, as the chatbot can retrieve relevant information from the entire document collection or from specific documents depending on our needs.

Let's implement this workflow to analyze our interplanetary agreements.

Let's begin by uploading a single document and asking specific questions about it. This approach helps us understand the content of individual documents before attempting to make comparisons or draw broader conclusions.

When you run this code, you'll see output similar to:

This example demonstrates how to extract specific information from a single document. The question "How are disputes resolved?" is targeted and specific, allowing our RAG chatbot to retrieve relevant sections of the document and provide a detailed answer.

When formulating questions for single document analysis, it's best to be specific and focused. Questions like "What are the key terms?" while broad, might not yield the most useful results. Instead, questions that target specific aspects of the document, such as "How are disputes resolved?" or "What are the confidentiality obligations?" will yield more precise and useful information.

Once we understand individual documents, we can progress to comparative analysis. This involves uploading multiple documents and asking questions that require the chatbot to compare information across them.

Let's upload a second document and ask a comparative question:

The output will look like:

Comparative questions require our RAG system to retrieve relevant information from multiple documents and synthesize a response. This is where the power of RAG really shines — the system can pull context from different documents based on semantic relevance, not just keyword matching.

After understanding individual documents and making targeted comparisons, we can perform comprehensive analysis across all documents. This involves uploading all relevant documents and asking questions that require synthesizing information from the entire collection.

Let's add our third document and ask a question that might require information from any of the documents:

The output will look like:

This example shows how our RAG system can search across all uploaded documents to find specific information. The question "What document mentioned fines?" requires the system to identify which document contains information about fines, demonstrating the RAG chatbot's ability to search across the entire document collection.

For complex document analysis tasks, it's sometimes helpful to reset your knowledge base and focus on specific documents. This allows for more targeted analysis without interference from other documents in the collection.

Let's demonstrate this by resetting our knowledge base and focusing only on the environmental pact:

The output will look like:

This example demonstrates how to use the resetAll() method to clear both conversation history and document knowledge, allowing you to focus on a specific document without interference from previously uploaded documents. This is particularly useful when you want to perform deep analysis on a single document after exploring the broader collection.

Strategic knowledge base management involves deciding when to keep multiple documents in your knowledge base for comparative analysis and when to reset and focus on specific documents for deeper analysis. This flexibility allows you to tailor your analysis approach to your specific needs.

Congratulations! You've completed the final lesson in our course on building a RAG-powered chatbot with Java. Throughout this course, you've built a complete RAG system from the ground up and learned how to apply it to practical document analysis tasks.

In this lesson, you've learned several key techniques for document analysis with RAG:

1. Single document analysis for extracting specific information.
2. Comparative analysis for identifying similarities and differences between documents.
3. Comprehensive analysis for synthesizing information across multiple documents.
4. Strategic knowledge base management for focused analysis.

The RAG architecture you've built is flexible and extensible, allowing you to adapt it to various use cases and document collections. Whether you're analyzing interplanetary agreements, legal contracts, research papers, or any other document collection, the techniques you've learned in this course will help you extract insights efficiently and effectively. Keep exploring, keep building, and keep pushing the boundaries of what's possible with RAG!