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๐Ÿค– AI/LLM

๐Ÿ”— LangChain ์ด๋ž€?

2026. 1. 30. 20:29
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๋ฐ˜์‘ํ˜•

LangChain์€ ํ•œ ์ค„๋กœ ๋งํ•˜๋ฉด ๐Ÿ‘‡

LLM์„ “ํ˜ผ์ž ๋ง๋งŒ ํ•˜๋Š” AI”๊ฐ€ ์•„๋‹ˆ๋ผ
๐Ÿ‘‰ ์ผํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์œผ๋กœ ๋งŒ๋“ค์–ด์ฃผ๋Š” ๋„๊ตฌ

์ฆ‰,

  • LLM ํ˜ผ์ž ์“ฐ๊ธฐ์—” ๋ถ€์กฑํ•œ ๋ถ€๋ถ„์„
  • **์ฒด์ธ(chain)**์œผ๋กœ ์—ฎ์–ด์„œ
  • ์‹ค์ œ ์„œ๋น„์Šค/์—…๋ฌด๊ฐ€ ๋˜๊ฒŒ ํ•ด์ฃผ๋Š” ํ”„๋ ˆ์ž„์›Œํฌ์•ผ.

๐Ÿค” ์™œ LangChain์ด ํ•„์š”ํ• ๊นŒ?

LLM์€ ๊ธฐ๋ณธ์ ์œผ๋กœ ๐Ÿ‘‡ ์ด๊ฑฐ๋ฐ–์— ๋ชป ํ•ด

์ž…๋ ฅ → ํ…์ŠคํŠธ ์ถœ๋ ฅ

๊ทผ๋ฐ ์‹ค๋ฌด์—์„œ๋Š”?

  • DB์—์„œ ๋ฐ์ดํ„ฐ ์กฐํšŒํ•˜๊ณ 
  • ๋ฌธ์„œ ๊ฒ€์ƒ‰ํ•˜๊ณ 
  • ์—ฌ๋Ÿฌ ๋‹จ๊ณ„๋ฅผ ๊ฑฐ์ณ์„œ
  • ์กฐ๊ฑด์— ๋”ฐ๋ผ ๋‹ค๋ฅธ ํ–‰๋™์„ ํ•ด์•ผ ํ•จ

๐Ÿ‘‰ ์ด๊ฑธ ์ง์ ‘ ๋‹ค ์งœ๊ธฐ ๊ท€์ฐฎ๊ณ  ๋ณต์žกํ•จ
๐Ÿ‘‰ ๊ทธ๋ž˜์„œ LangChain ๋“ฑ์žฅ


๐Ÿง  LangChain์ด ํ•ด์ฃผ๋Š” ํ•ต์‹ฌ ์—ญํ• 

1๏ธโƒฃ Chain (์ฒด์ธ)

์—ฌ๋Ÿฌ ๋‹จ๊ณ„๋ฅผ ์ˆœ์„œ๋Œ€๋กœ ์—ฐ๊ฒฐ

์˜ˆ:

์งˆ๋ฌธ →
๋ฌธ์„œ ๊ฒ€์ƒ‰ →
์š”์•ฝ →
๋‹ต๋ณ€ ์ƒ์„ฑ

2๏ธโƒฃ Prompt ๊ด€๋ฆฌ

  • ํ”„๋กฌํ”„ํŠธ ํ…œํ”Œ๋ฆฟํ™”
  • ๋ณ€์ˆ˜ ๋„ฃ๊ธฐ
  • ์žฌ์‚ฌ์šฉ ๊ฐ€๋Šฅ
๋„ˆ๋Š” ๋ฐ์ดํ„ฐ ์—”์ง€๋‹ˆ์–ด์•ผ.
์งˆ๋ฌธ: {question}

3๏ธโƒฃ Memory (๊ธฐ์–ต)

  • ์ด์ „ ๋Œ€ํ™” ๊ธฐ์–ต
  • ์ฑ„ํŒ…๋ด‡ ๋งŒ๋“ค ๋•Œ ํ•„์ˆ˜

๐Ÿ‘‰ “์•„๊นŒ ๋งํ•œ ๊ทธ๊ฑฐ” ์ดํ•ด ๊ฐ€๋Šฅ


4๏ธโƒฃ Tool ์‚ฌ์šฉ

LLM์ด ๋„๊ตฌ๋ฅผ ์“ฐ๊ฒŒ ํ•จ

์˜ˆ:

  • SQL ์‹คํ–‰
  • Python ํ•จ์ˆ˜ ํ˜ธ์ถœ
  • API ์š”์ฒญ
  • ๊ณ„์‚ฐ๊ธฐ ์‚ฌ์šฉ

๐Ÿ‘‰ LLM: “์ด๊ฑด DB ์กฐํšŒํ•ด์•ผ๊ฒ ๋‹ค”


5๏ธโƒฃ RAG ์‰ฝ๊ฒŒ ๊ตฌํ˜„

  • PDF / CSV / DB
  • ๋ฒกํ„ฐํ™”
  • ๊ฒ€์ƒ‰
  • ๋‹ต๋ณ€์— ์ฐธ๊ณ 

๐Ÿ‘‰ ํšŒ์‚ฌ ๋ฌธ์„œ ๊ธฐ๋ฐ˜ ์ฑ—๋ด‡ ์—ฌ๊ธฐ์„œ ๋‚˜์˜ด


๐Ÿงฉ LangChain ๊ตฌ์กฐ ํ•œ ๋ฒˆ์— ๋ณด๊ธฐ

[์‚ฌ์šฉ์ž ์งˆ๋ฌธ]
      ↓
[Prompt]
      ↓
[LLM]
  โ†™        โ†˜
[Tool]   [Memory]
      ↓
[์ตœ์ข… ๋‹ต๋ณ€]

โš™๏ธ ์‹ค๋ฌด์—์„œ ์ž์ฃผ ์“ฐ๋Š” ์˜ˆ์‹œ

  • ์‚ฌ๋‚ด ๋ฌธ์„œ Q&A ์ฑ—๋ด‡
  • SQL ์ž๋™ ์ƒ์„ฑ + ์‹คํ–‰
  • ๋กœ๊ทธ ๋ถ„์„ AI
  • ๊ณ ๊ฐ ์ƒ๋‹ด ์ฑ—๋ด‡
  • ๋ฐ์ดํ„ฐ ์š”์•ฝ ์—์ด์ „ํŠธ

โŒ ์˜คํ•ด ํ•˜๋‚˜ ์ •๋ฆฌ

โŒ LangChain = LLM โŒ
โญ• LangChain = LLM์„ ์“ฐ๊ธฐ ์œ„ํ•œ ๋ผˆ๋Œ€/์ ‘์ฐฉ์ œ


๐ŸŽฏ ํ•œ ๋ฌธ์žฅ ๋ฉด์ ‘์šฉ ์ •๋ฆฌ

LangChain์€ LLM์„ ์ค‘์‹ฌ์œผ๋กœ
ํ”„๋กฌํ”„ํŠธ, ๋ฉ”๋ชจ๋ฆฌ, ๋„๊ตฌ, ์™ธ๋ถ€ ๋ฐ์ดํ„ฐ(RAG)๋ฅผ
์ฒด์ธ ํ˜•ํƒœ๋กœ ์—ฐ๊ฒฐํ•ด ์‹ค์ œ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์„ ๋งŒ๋“ค ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ฃผ๋Š” ํ”„๋ ˆ์ž„์›Œํฌ์ž…๋‹ˆ๋‹ค.


๐Ÿ”ฅ ๋ฐ์ดํ„ฐ์—”์ง€๋‹ˆ์–ด ๊ด€์  ํ•œ ์ค„

LangChain = Airflow๊ฐ€ “ํƒœ์Šคํฌ ์˜ค์ผ€์ŠคํŠธ๋ ˆ์ด์…˜”์ด๋ผ๋ฉด
LangChain์€ “LLM ์˜ค์ผ€์ŠคํŠธ๋ ˆ์ด์…˜”

 

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๋ฐ˜์‘ํ˜•

'๐Ÿค– AI > LLM' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€

๊ฐ™์€ ๋ฌธ์ œ๋ฅผ LangChain โ†’ LangGraph๋กœ ๋ฐ”๊พธ๋Š” ์˜ˆ์‹œ  (0) 2026.01.30
LangChain โ†’ LangGraph๋กœ ์–ธ์ œ ๋„˜์–ด๊ฐ€์•ผ ํ•˜๋‚˜  (0) 2026.01.30
๐Ÿงญ LangGraph๋ž€?  (0) 2026.01.30
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    '๐Ÿค– AI/LLM' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
    • ๊ฐ™์€ ๋ฌธ์ œ๋ฅผ LangChain → LangGraph๋กœ ๋ฐ”๊พธ๋Š” ์˜ˆ์‹œ
    • LangChain → LangGraph๋กœ ์–ธ์ œ ๋„˜์–ด๊ฐ€์•ผ ํ•˜๋‚˜
    • ๐Ÿงญ LangGraph๋ž€?
    • LLM์ด๋ž€?
    kkh1902
    kkh1902
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