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Cognitive Load Management Technology Breaking Through the Limits of RAG Performance

What should be done when building a generative AI or LLM-based RAG (Retrieval-Augmented Generation) system, but the desired performance isn't achieved and there's no suitable solution? This lecture presents methods to improve RAG performance based on Cognitive Load theory. Through this lecture, you will understand the limitations of LLM context windows and learn how to effectively manage cognitive load in RAG systems. It is a practical-level theoretical lecture covering Chunk size and structure design, high-quality Chunk generation techniques, dynamic optimization, performance evaluation, and practical techniques.

(5.0) 1 reviews

14 learners

  • arigaram
컨텍스트창관리
chunk전략설계
rag시스템구축
llm성능평가및튜닝
동적최적화
AI
ChatGPT
LLM
RAG
Generative AI

What you will learn!

  • Strategies to understand and manage LLM context window and token limitations

  • How to create high-quality Chunks and integrate them into a RAG pipeline

🧭Precautions

I am currently in the process of completing this course. I plan to gradually adjust the price as I finish the course. Therefore, those who purchase earlier can buy it at a relatively lower price, but they will have the disadvantage of having to wait longer until the course is fully completed (although I will continuously add supplementary content). Please consider this when making your purchase decision.

📋Change History

  • September 4, 2025

    • I've uploaded about 2/3 of the integrated summaries for each section. I'll upload the remaining integrated summaries one by one soon.


    • I had separated Section 3 into Section 3 and Section 4, but this caused a mismatch between the section numbers in the lecture list and the section numbers in the course materials, which could lead to confusion, so I moved Section 4 to Section 31 (at the very end).

  • September 1, 2025

    • I separated Section 3 into Section 3 and Section 4. As a result, the section numbers and lesson material numbers may not match. I will modify the lesson materials and re-record the videos before posting them again. Thank you for your patience.

    • We are restructuring the curriculum to reduce confusion for students. Accordingly, we have made the classes that were temporarily set to private on August 22nd public again.

  • August 22, 2025

    • I have changed the lessons in the [Advanced] course that are not yet completed (Sections 11-30) to private status. I plan to make them public section by section or lesson by lesson as they are completed in the future. This is a measure to reduce confusion for students, so I would appreciate your understanding.

🔥RAG technology that overcomes the limitations of LLMs, cognitive load management technology that will overcome the limitations of RAG technology

  • While creating AI services based on Large Language Models (LLMs) has become the mainstream approach, there are limitations due to restricted context window sizes and token counts. Particularly in RAG (Retrieval-Augmented Generation) systems, if documents or chunks (fragments of documents) are not properly managed, cognitive load occurs on the LLM side, making it difficult to generate optimal responses.

  • Cognitive load refers to the degree of difficulty in recognizing information based on the amount and complexity of information that a system (including the human brain and artificial intelligence) must process. When cognitive load increases in LLM systems, information can accumulate excessively, causing the core message to become unclear, performance to deteriorate, and preventing the system from producing answers at the expected level. Therefore, effective cognitive load management is a key factor that determines the quality and stability of LLM-based systems.

🔍Course Introduction

This course presents step-by-step methodologies that can be immediately applied in practice, from chunk design to high-quality chunk generation, RAG pipeline integration, dynamic optimization, and performance evaluation, based on the concepts of LLM context window limitations and cognitive load. Through this, we expect to significantly resolve response quality degradation issues that could not be solved with existing various RAG enhancement techniques.

🎯What you can learn from this course

  • LLM Context Window and Token Limit Cognitive Load Management Strategies

  • Methods for Generating High-Quality Chunks and Approaches to Utilizing Various Chunking Techniques

  • Technology that integrates data preprocessing, retrieval, prompt design, and post-processing for building RAG systems

  • Dynamic optimization through real-time chunk size adjustment and summarization parameter tuning

  • Performance Evaluation Metrics Application and Results Report Writing Methods

Important Concepts

Artificial Intelligence (AI), ChatGPT, LLM, RAG, AI Utilization (AX)

📚Section-by-Section Introduction

Section 1. Course Introduction and Basic Concepts

The first section clarifies the overall overview and objectives of this course, covering the basic concepts of LLM context windows and cognitive load management. In particular, we'll gain a detailed understanding of what cognitive load is, why it's important in LLM environments, and learn the fundamentals of RAG. Based on theory, we'll examine the core topics covered in the course and help establish a learning direction. Concepts are explained step by step so that beginners can easily follow along, providing a solid foundation for naturally progressing to advanced topics later.

Section 2. Context Window and Token Limits

This section provides an in-depth analysis of LLM context windows and tokenization mechanisms. We examine in detail what tokens are, how they are segmented, and their impact on model input, explaining with various examples how context window size limitations affect model performance. Additionally, we learn methods for calculating token-based costs to develop practical insights that can be applied in actual system design. Through this process, you will gain a systematic understanding of tokens and context, enabling you to intuitively grasp the specific problems of cognitive load management.

Section 3. Chunking Strategy: Chunk Size and Structure

Effective chunk design is the core of RAG system quality. This section introduces various chunking strategies ranging from fixed-size chunks to paragraph-based, semantic unit clustering, and hierarchical structures, providing in-depth coverage of the advantages, disadvantages, and application cases of each method. Based on understanding how chunk size and structure affect cognitive load and context utilization, you can acquire practical know-how for designing optimal chunking strategies suited to specific situations. Finally, through hands-on practice applying various chunking methods, you can organically connect theory with practice by gaining experience.

Section 4. High-Quality Chunk Generation Techniques

This section covers advanced techniques for creating chunks that are suitable for reducing cognitive load and improving information quality. You will learn various technologies such as smart summarization, merging original text with summaries, embedding-based clustering, meta-tagging, and reflecting query intent, and practice how to combine each technique to create more efficient chunks. Through this, you will develop the capability to generate high-quality chunks that go beyond simple chunking methods and reflect the meaning of information and the questioner's intent. This is a core strategy to help LLMs provide optimal answers even when dealing with complex documents.

Sections 5-10. Integration into RAG Pipeline

This section comprehensively covers RAG system design and integration. It systematically addresses the entire RAG pipeline process, from preprocessing, similarity search and filtering, chunk reconstruction and prompt design, answer generation and post-processing, to hallucination detection and re-injection strategies. Each stage focuses on know-how that minimizes cognitive load while concentrating on accurate answer generation, learned through hands-on practice. It primarily provides practical techniques and problem-solving methods that can be immediately applied in real-world environments.

Section 11~15. Dynamic Optimization Techniques

This section covers methods for dynamically adjusting context load and chunk size according to the situation. It provides an in-depth introduction to automation and optimization strategies for intelligent system operation, ranging from question complexity assessment, dynamic chunk size adjustment algorithms, adaptive summarization parameter tuning, context accumulation management in multi-turn conversations, to system monitoring and feedback loop design. Through this, you will acquire real-time management capabilities that can respond to changing demands and complexity while maximizing LLM performance.

Sections 16-20. Performance Evaluation Methods and Performance Evaluation Metrics

This covers various metrics and evaluation methodologies for objectively assessing the effectiveness of RAG systems and chunking strategies. You'll learn methods for deriving improvements through multifaceted measurement of system performance, from recall, accuracy, response latency, cost analysis, token usage efficiency, and user satisfaction to strategy validation through A/B testing. Based on evaluation results, it provides insights for continuous performance tuning and advancement, strengthening data-driven decision-making capabilities.

Sections 21-24. Remaining Tasks and Future Technology Outlook

This discusses research challenges that need to be addressed in the fields of RAG and LLM cognitive load management, as well as future expansion possibilities. It covers fully automated chunk optimization, long-term memory integration issues, scenarios for building large-scale multimedia document-based RAG systems, and methods for extending RAG systems to process multimodal information. Through the latest research trends and practical application cases, it provides a clear understanding of future development directions and challenges.

Sections 25-30. Introduction to Project Implementation Methods

This section explains how to conduct a comprehensive project that integrates the theories and techniques learned so far to design, implement, tune, and evaluate an actual RAG system. You'll be able to verify your practical capabilities by progressing through all stages in order: from selecting project topics to data collection and preprocessing, designing chunk strategies, integrating RAG systems, performance evaluation and result report writing, and final presentations and code reviews. Based on what you learn here, developers will be able to form teams or work individually on practical projects, allowing them to fully internalize the content learned in this course.

🏆Expected Effects

  • You will clearly understand LLM context windows and token limitations based on the concept of cognitive load, and acquire strategies to manage them.

  • You can maximize LLM performance by efficiently dividing and summarizing information using various chunk generation techniques and chunk optimization methods.

  • You will practice the entire RAG pipeline process and develop the ability to build and tune actual systems.

  • Learn how to provide stable and high-performance AI services in real-time operational environments through dynamic optimization and performance evaluation.

  • Understand the development trends of AI systems and strengthen future readiness through the latest research tasks and expansion directions.

Recommended for
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Who is this course right for?

  • Developer directly designing or operating LLM and RAG systems

  • AI Engineer optimizing large-volume document and multi-turn dialogue processing.

Need to know before starting?

  • Understanding Basic Concepts of Natural Language Processing (NLP)

  • Understanding the Basic Working Principles of Large Language Models (LLMs)

  • Concepts of Tokenization and Context Window

  • Basic programming skills (Python language recommended)

  • (Optional) Experience utilizing AI and machine learning models or conducting related projects

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312 lectures ∙ (35hr 14min)

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  • Jang Jaehoon님의 프로필 이미지
    Jang Jaehoon

    Reviews 594

    Average Rating 4.9

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    좋은 강의 감사합니댜!

    • 아리가람
      Instructor

      유익한 강의가 된 것 같아 기쁩니다.

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