강의

멘토링

로드맵

AI Development

/

AI Agent Development

LLM Basics to Latest RAG·LangChain: Master LLM Fundamentals in Just 5 Hours!

This is a course to master the core technologies of LLM basic theory, LangChain, and RAG. You can easily learn the latest AI technologies used in practice, from LLM basics!

(5.0) 10 reviews

104 learners

  • HappyAI
이론 실습 모두
ai활용
Chatbot
LLM
LangChain
RAG
openAI API

Reviews from Early Learners

What you will learn!

  • Basic Concepts and Practical Use of the Latest LLMs

  • OpenAI API Usage and Practice

  • Automation and AI Chatbot Development with LangChain

  • Hands-on RAG-based Application Development

LLM Hackers: Master the Latest AI Technologies with LangChain and RAG 🤔

RAG and LangChain, Still Feeling Difficult? 🤔

Here is a course that will teach you practical skills that can be applied in practice using the latest AI technologies, with easy explanations for LLM beginners.

This lecture will teach you LLM, RAG, and LangChain, which seem complicated, in an easy and systematic way.

Master the latest AI technologies quickly and effectively with our LLM Hackers , which is fully structured from theory to practice.



[LLM Basic Theory and Latest Technologies such as RAG, Langchain, etc.] 🎥


[RAG code provided for actual practice]








💡 What can I learn from this course?

  • LLM From Basics to Practice


    Learn the basic principles of language models, the latest technological advancements, and how to apply them directly to practice.

  • Create real-world projects with the OpenAI API
    Create high-quality projects such as review analysis and automatic blog creation using ChatGPT API and Function Calling.


  • LangChain Concept and Practical Project
    Experience various hands-on projects such as generating review responses, analyzing data, and analyzing MYSQL DB using the powerful LangChain.

  • Solving Complex Data Problems with RAG
    Learn about vector store design, PDF Q&A, and search systems using web data.


Features of this course

📌 Covering the latest LLM technologies

  • You can learn the hottest AI technologies these days, such as LLM, LangChain, and RAG, all at once.
    Detailed code provided so you can use it right away in your projects.

  • This course will help you master the overall skills of LLM in a short period of time.

📌 Practice-Oriented Curriculum

20% theory, 80% practice
Go beyond simple conceptual understanding to writing executable code and verifying results.

📌 Highly accomplished, practical project

  • Automated review sentiment analysis

  • PDF-based question-and-answer application

  • Analyzing SQL Data with LangChain

📌 Easy explanation for beginners and novices
This curriculum is structured step-by-step from the basics so that even beginners can easily get started.

I recommend this to these people

I want to study LLM and RAG

“I don’t know where to start...”

→ We guide you on the easiest and fastest path to learning.


Those who want to apply AI technology in practice
Anyone who wants to analyze data and proceed with a project using LLM and LangChain

Anyone who wants to develop a customized LLM with RAG
We provide an easy and concise explanation of RAG used in business.

💡 After taking the class, you will change like this 🌟

  • LangChain and RAG can solve the limitations of LLM .

  • Learn agent basics with the OpenAI API and Function Calling capabilities.


  • You will learn the technologies used in LLM-based applications by leveraging the latest technologies.


  • Design RAG search systems and gain the skills to solve business problems.


  • Beginners without a major can learn AI technologies used in practice and upgrade their careers to the next level .

Learn about these things.

LLM Theory and Prompt Engineering

  • Understand the basic principles and development process of LLM and learn effective prompt design methods.


How to use LangChain in real life

  • You will learn practical projects, from an explanation of the LangChain module to building a RAG-based PDF search system that handles various data types and SQL DB analysis.


The latest LLM technology, RAG, from basics to advanced

  • You will learn how to design a vector store, build a PDF-based question-and-answer system, and build a web data-based question-and-answer system.

  • Text summarization technique for processing large amounts of text, LangChain Hub integration

    You will learn various RAGs.

Projects utilizing OpenAI API

Learn review sentiment analysis, Naver news and blog content creation, web search application development using Function Calling, etc.

Who created this course 👨‍🏫

  • AI Graduate School PhD Completion (Generative AI and LLM Major)

  • Operating a company specializing in generative AI and big data analysis


  • Over 200 AI/Big Data projects completed

  • Former government-funded research institute natural language processing and big data analysis researcher



Things to note before taking the class

Practice environment

  • Operating System : You can learn without any problems even in a Windows environment.


  • Tools used : The hands-on training will be conducted based on the Google Colab environment.


Learning Materials

  • Theoretical data and practical code are provided in Google Sheet.

Player Knowledge and Notes

  • If you know Python grammar, you can take the course more effectively.

Recommended for
these people

Who is this course right for?

  • Junior developers and beginners who want to start learning LLM

  • AI researcher who wants to utilize latest AI technologies like RAG and LangChain in practice

  • Developer aspiring to build their own AI solution

  • Development team aiming to build enterprise-specific RAG systems

Need to know before starting?

  • Basic Python programming knowledge

Hello
This is

3,734

Learners

142

Reviews

49

Answers

4.7

Rating

9

Courses

안녕하세요 AI와 빅데이터 분석에 진심인 해피AI 이진규입니다.

[강사약력]

이진규 (Lee JinKyu)

해피AI (Happy AI CEO)

생성 AI 및 빅데이터 분석 분야의 최신 트렌드, 인사이트, 기술 활용 방법을 깊이 있게 전달합니다.

 

🎒  강연 및 외주 문의

[email] leejinkyu0612@naver.com

[Blog] 📺https://blog.naver.com/leejinkyu0612

[YouTube] 📺 https://www.youtube.com/@HappyAI_0612

[github] https://github.com/leejin-kyu/

[Homepage] https://happyaidata.kr

[H.P] 010-9973-2113

[kakao] jinkyu0612

 

📘 크몽 Prime 전문가(상위 2%)📺https://kmong.com/gig/345782

 삼성전자, 서울대, 교육청, 경기연구원, 산림청, 국립공원관리공단, 서울시 등 다수의 정부기관 및 교육기관 프로젝트 진행

의료,커머스,생태,법학,경제,예체능 등 다양한 도메인의 연구경험(총 연구 프로젝트 200회 이상 진행)

 

📘 Bio

- 2024.07~ 생성 AI 및 빅데이터 분석 전문기업 해피AI 대표

- 2023~ 퍼블릭 뉴스 AI 칼럼니스트(AI편향 및 RAG챗봇 전문)

- 2022. AI대학원 박사과정 수료(자연어처리 및 LLM 전공)

- 2021~2023 AI/빅데이터 전문 기업 스텔라비전 개발자

- 2018~2021 정부출연연구기관 자연어처리/빅데이터 분석 연구원 (인문사회과학 데이터 연구)

 

🎒Courses & Activities

 

2025

LLM/sLLM 애플리케이션 개발 강의-파인튜닝, RAG, Agent 기반 . KT(2025)

 

2024

Langchain 및 RAG 등 LLM 프로그래밍.삼성SDS(2024)

ChatGPT 기반 빅데이터 분석 입문. 렛유인에듀 (2024)

인공지능 기초 및 데이터 분석 기초 강의. 한국직업개발원 (2024)

LLM 실무자를 위한 LLM이론 및 Langchain 기반 RAG챗봇 개발 강의. 서울디지털 재단 (2024)

쉽게 따라하는 LDA & 감성분석 빅데이터분석법 with ChatGPT. 인프런 (2024)

파이썬을 활용한 텍스트 분석 강의. 서울과학기술대학교 (2024)

랭체인(LangChain)을 활용한 LLM 챗봇 만들기(feat.ChatGPT). 인프런 (2024)

 

2023

ChatGPT를 활용한 파이썬 기초 강의. 경기대학교 (2023)

빅데이터 전문가 과정 특강. 단국대학교 (2023)

빅데이터 분석 기초 강의. 렛유인에듀 (2023)

 

 

💻 Projects

LLM 기반 산림 복원 빅데이터 분석(국립산림과학원)

Private LLM 기반 RAG 챗봇 모델 구축 (한국전력공사)

AI 기반 빅데이터 분석 기법을 적용한 설문 데이터 분석 (A정부기관)

내부망 전용 PrivateLLM을 활용한 텍스트마이닝 솔루션 개발 (D 정부기관)

빅데이터 분석을 통한 한우시장 트렌드 분석 (이화브리오)

Instruction Tuning 및 강화학습(RLHF)을 통한 LLM 모델 개발 (서울디지털재단)

AI 언어모델 기반 헬스케어 서비스의 사용자 리뷰 텍스트 분석 (삼성전자)

자연어 처리 기술 기반 텍스트마이닝을 활용한 연구동향 분석 (한국대기환경학회)

AI 모델 kopatBERT 기반 특허 논문 QA 모델 개발 (한국기술마켓)

딥러닝 기반 토픽모델링을 활용한 법학 설문 빅데이터 분석 (서울대학교)

AI 모델 Word2Vec과 감성분석을 적용한 설문 문항 빅데이터 분석 (경기연구원)

AI 모델 RNN 기반 리뷰 인사이트 추출 및 분석 프로그램 개발 (서클플랫폼)

빅데이터를 활용한 2022년 국립공원 탐방 키워드 분석 (국립공원관리공단)

이외에도 다수의 공공기관, 기업체와 개인적 의뢰 등 총 200건 이상 프로젝트 진행

 

📖 Publication

 [주요 논문 ]

Improving Commonsense Bias Classification by Mitigating the Influence of Demographic Terms.2024.

Improving Generation of Sentiment Commonsense by Bias Mitigation" International Conference on Big Data and Smart Computing.2023.

언론기사 빅데이터 분석을 통한 대규모 언어모델에 대한 기술 인식 분석: ChatGPT 등장 전후를 중심으로, 2024

자연어 처리(NLP)기반 텍스트마이닝을 활용한 소나무에 대한 국내외 연구동향(2001∼2020)분석 | 농업생명과학연구 | 2022

숲길에 대한 10 년간의 언론 인식분석-텍스트 마이닝 분석을 중심으로 | 산림경제연구 | 2021

이외에도 타 분야에서 다수의 학술논문, 학술발표, 연구보고서 등의 성과 창출

Others

Python을 활용한 데이터분석 및 시각화

LLM을 활용한 데이터분석

ChatGPT와 LangChain,Agent을 활용한 업무 생산성 향상

Curriculum

All

48 lectures ∙ (4hr 50min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

10 reviews

5.0

10 reviews

  • jmjung7224님의 프로필 이미지
    jmjung7224

    Reviews 2

    Average Rating 5.0

    5

    60% enrolled

    • sihan4455님의 프로필 이미지
      sihan4455

      Reviews 5

      Average Rating 4.6

      5

      100% enrolled

      • welovearum9877님의 프로필 이미지
        welovearum9877

        Reviews 1

        Average Rating 5.0

        5

        100% enrolled

        I can now understand and utilize LLMs more deeply!

        • kwy97님의 프로필 이미지
          kwy97

          Reviews 3

          Average Rating 5.0

          5

          100% enrolled

          I was able to gain a deeper understanding of LLM, which I previously only knew the basic concepts of. Also, implementing the features myself through hands-on practice was very helpful for understanding. The time wasn't long, and they explained only the core points, so I think it was good that I attended!

          • hhshin0867님의 프로필 이미지
            hhshin0867

            Reviews 2

            Average Rating 5.0

            5

            31% enrolled

            Limited time deal

            $51.70

            24%

            $68.20

            HappyAI's other courses

            Check out other courses by the instructor!

            Similar courses

            Explore other courses in the same field!