diff --git a/00_Raw/Feature-Sliced Design.md b/00_Raw/Feature-Sliced Design.md new file mode 100644 index 00000000..c28d14b5 --- /dev/null +++ b/00_Raw/Feature-Sliced Design.md @@ -0,0 +1,34 @@ +# [[Feature-Sliced Design]] + +## ๐Ÿ“Œ Brief Summary +Feature-Sliced Design(FSD)์€ ํ”„๋ก ํŠธ์—”๋“œ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜(ํŠนํžˆ React)์„ ์œ„ํ•ด ํŠน๋ณ„ํžˆ ๊ณ ์•ˆ๋œ ์ตœ์‹  ์•„ํ‚คํ…์ฒ˜ ๋ฐฉ๋ฒ•๋ก ์ž…๋‹ˆ๋‹ค [1, 2]. ์ฝ”๋“œ๋ฅผ ๊ธฐ์ˆ ์ ์ธ ํŒŒ์ผ ์œ ํ˜•์ด ์•„๋‹Œ ๋น„์ฆˆ๋‹ˆ์Šค ๋กœ์ง, ์‚ฌ์šฉ์ž์˜ ์—ฌ์ •, ์ฑ…์ž„(Scope and responsibility)์„ ๊ธฐ์ค€์œผ๋กœ ๊ตฌ์„ฑํ•˜์—ฌ ํ”„๋กœ์ ํŠธ์˜ ์œ ์ง€๋ณด์ˆ˜์„ฑ๊ณผ ํ™•์žฅ์„ฑ์„ ๋†’์ด๋Š” ๊ฒƒ์„ ๋ชฉํ‘œ๋กœ ํ•ฉ๋‹ˆ๋‹ค [2, 3]. ์ปดํฌ๋„ŒํŠธ ๊ธฐ๋ฐ˜ ๊ฐœ๋ฐœ, ๋„๋ฉ”์ธ ์ฃผ๋„ ์„ค๊ณ„(DDD), ๋ชจ๋“ˆํ˜• ์‹œ์Šคํ…œ ์•„ํ‚คํ…์ฒ˜์˜ ์›์น™์„ ๊ฒฐํ•ฉํ•˜์—ฌ ๋ช…ํ™•ํ•˜๊ณ  ๊ฐ•์ œํ•  ์ˆ˜ ์žˆ๋Š” ํด๋” ๋ฐ ์ฝ”๋“œ ๊ตฌ์กฐ๋ฅผ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค [1, 4]. + +## ๐Ÿ“– Core Content +* **ํ•ต์‹ฌ ๊ณ„์ธต ๊ตฌ์กฐ (Layers, Slices, Segments):** + FSD๋Š” ํ”„๋กœ์ ํŠธ๋ฅผ ๋ ˆ์ด์–ด(Layer), ์Šฌ๋ผ์ด์Šค(Slice), ์„ธ๊ทธ๋จผํŠธ(Segment) ๊ฐœ๋…์œผ๋กœ ๋ถ„ํ• ํ•ฉ๋‹ˆ๋‹ค [5]. ๊ฐ€์žฅ ์ตœ์ƒ์œ„ ๊ฐœ๋…์ธ ๋ ˆ์ด์–ด๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์—„๊ฒฉํ•˜๊ฒŒ ์ง€์ •๋œ ํด๋” ๊ตฌ์กฐ๋ฅผ ๊ฐ€์ง‘๋‹ˆ๋‹ค. + * `app`: ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜ ์ดˆ๊ธฐํ™” ๋ฐ ์ „์—ญ ์„ค์ • [3, 6] + * `pages`: ๋ผ์šฐํŠธ ์ˆ˜์ค€์˜ ํ™”๋ฉด ์กฐํ•ฉ [3, 6] + * `widgets`: ๊ธฐ๋Šฅ(Feature)๊ณผ ์—”ํ‹ฐํ‹ฐ(Entity)๋ฅผ ์กฐํ•ฉํ•œ ์žฌ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ๋Œ€ํ˜• UI ๋ธ”๋ก [3, 6] + * `features`: ์‚ฌ์šฉ์ž์˜ ์ƒํ˜ธ์ž‘์šฉ ์‹œ๋‚˜๋ฆฌ์˜ค ๋ฐ ๋น„์ฆˆ๋‹ˆ์Šค ์›Œํฌํ”Œ๋กœ์šฐ [3, 6] + * `entities`: ํ•ต์‹ฌ ๋น„์ฆˆ๋‹ˆ์Šค ๋ฐ์ดํ„ฐ ๋ชจ๋ธ [3, 6] + * `shared`: ๋„๋ฉ”์ธ์— ์ข…์†๋˜์ง€ ์•Š์€ ์žฌ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์œ ํ‹ธ๋ฆฌํ‹ฐ ๋ฐ UI ์ปดํฌ๋„ŒํŠธ [3, 6] + +* **๋‹จ๋ฐฉํ–ฅ ์˜์กด์„ฑ ๊ทœ์น™ (Unidirectional Dependencies):** + FSD์˜ ๊ฐ€์žฅ ์ค‘์š”ํ•œ ๊ทœ์น™์œผ๋กœ, ์ฝ”๋“œ๋Š” ์˜ค์ง ๋™์ผํ•œ ๋ ˆ์ด์–ด ๋˜๋Š” ์ž์‹ ๋ณด๋‹ค ํ•˜์œ„ ๋ ˆ์ด์–ด์˜ ์ฝ”๋“œ๋งŒ ๊ฐ€์ ธ์˜ฌ(import) ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค [3, 7]. ์ƒ์œ„ ๋ ˆ์ด์–ด๊ฐ€ ํ•˜์œ„ ๋ ˆ์ด์–ด์— ์˜์กดํ•˜๋Š” ๊ฒƒ์€ ํ—ˆ์šฉ๋˜์ง€๋งŒ, ํ•˜์œ„ ๋ ˆ์ด์–ด๋Š” ์ ˆ๋Œ€ ์ƒ์œ„ ๋ ˆ์ด์–ด์— ์˜์กดํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค [3]. ์ด๋ฅผ ํ†ตํ•ด ์ˆจ๊ฒจ์ง„ ์ˆœํ™˜ ์ฐธ์กฐ๋ฅผ ์ œ๊ฑฐํ•˜๊ณ  ์•„ํ‚คํ…์ฒ˜์˜ ๊ทœ์œจ์„ ๊ฐ•์ œํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค [7, 8]. + +* **๊ณต๊ฐœ API ๊ทœ์น™ (Public API Rule):** + ๊ฐ ์Šฌ๋ผ์ด์Šค๋Š” ์ฃผ๋กœ `index.ts`๋ฅผ ํ†ตํ•ด ๋‹จ์ผ ์ง„์ž…์ ์„ ๊ฐ€์ ธ์•ผ ํ•ฉ๋‹ˆ๋‹ค [9-11]. ์™ธ๋ถ€ ๋ชจ๋“ˆ์€ ์˜ค์ง ์ด ์ง„์ž…์ ์—์„œ ๋ช…์‹œ์ ์œผ๋กœ export๋œ ์š”์†Œ์—๋งŒ ์ ‘๊ทผํ•ด์•ผ ํ•˜๋ฉฐ, ๋‚ด๋ถ€ ํŒŒ์ผ์— ์ง์ ‘ ์ ‘๊ทผํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค [9, 10]. ์ด๋Š” ์บก์Аํ™”๋ฅผ ๊ฐ•ํ™”ํ•˜๊ณ  ๋ช…ํ™•ํ•œ ์ธํ„ฐํŽ˜์ด์Šค ๊ณ„์•ฝ์„ ์ƒ์„ฑํ•˜์—ฌ ๋ฆฌํŒฉํ† ๋ง ์‹œ ์‚ฌ์ด๋“œ ์ดํŽ™ํŠธ๋ฅผ ์ตœ์†Œํ™”ํ•ฉ๋‹ˆ๋‹ค [9, 11]. + +* **๋„์ž… ์ด์  ๋ฐ ์‹ค๋ฌด ์ ์šฉ:** + ๋Œ€๊ทœ๋ชจ ํ”„๋กœ์ ํŠธ๊ฐ€ ์„ฑ์žฅํ•จ์— ๋”ฐ๋ผ ๊ธฐ๋Šฅ ๊ฐ„์˜ ์˜์กด์„ฑ์ด ์–ฝํžˆ๋Š”(Tangled dependencies) ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•ด ์ค๋‹ˆ๋‹ค [12]. ์ฝ”๋“œ๋ฅผ ๋…๋ฆฝ์ ์œผ๋กœ ์ˆ˜์ • ๋ฐ ํ…Œ์ŠคํŠธํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•ด ์ฃผ๋ฉฐ [13], ๊ณต์œ  ์ƒํƒœ๋ฅผ ์ค„์ด๊ณ  ๋ Œ๋”๋ง ๊ฒฝ๊ณ„๋ฅผ ์ขํ˜€ ์„ฑ๋Šฅ ์ตœ์ ํ™”์—๋„ ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ๊ธฐ์—ฌํ•ฉ๋‹ˆ๋‹ค [14]. ESLint ๊ทœ์น™ ๋“ฑ์„ ํ†ตํ•ด ์•„ํ‚คํ…์ฒ˜ ๊ฒฝ๊ณ„๋ฅผ ์ž๋™ํ™”ํ•˜์—ฌ ๊ด€๋ฆฌํ•˜๋Š” ๊ฒƒ์ด ๊ถŒ์žฅ๋ฉ๋‹ˆ๋‹ค [15, 16]. + +* **ํ•œ๊ณ„ ๋ฐ ์ฃผ์˜์‚ฌํ•ญ:** + ๊ฐ€์žฅ ํฐ ๊ณผ์ œ๋Š” ํŠน์ • ๊ธฐ๋Šฅ์ด ์ •ํ™•ํžˆ ์–ด๋–ค "Feature" ๊ฒฝ๊ณ„์— ์†ํ•˜๋Š”์ง€ ํŒŒ์•…ํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค [17]. ์ธ์ฆ(Auth)๊ณผ ๊ฐ™์€ ๊ต์ฐจ ๊ด€์‹ฌ์‚ฌ๋Š” ํ•œ ๋ฒˆ์— ๊ฑฐ๋Œ€ํ•œ ์Šฌ๋ผ์ด์Šค๋กœ ๋งŒ๋“ค๊ธฐ๋ณด๋‹ค '๋กœ๊ทธ์ธ', '๊ฐ€์ž…', '๋น„๋ฐ€๋ฒˆํ˜ธ ์žฌ์„ค์ •' ๋“ฑ ๊ตฌ์ฒด์ ์ด๊ณ  ์ž‘์€ ๊ธฐ๋Šฅ ๋‹จ์œ„๋กœ ๋‚˜๋ˆ„๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค [17-19]. ๋˜ํ•œ, ํŒ€์› ์ „์ฒด๊ฐ€ ์ด ๋ฐฉ๋ฒ•๋ก ์„ ์™„์ „ํžˆ ์ดํ•ดํ•˜์ง€ ์•Š์œผ๋ฉด ๋ชจ๋“ˆ ๋ถ„๋ฅ˜์— ๋Œ€ํ•œ ์˜๋ฏธ๋ก ์  ๋…ผ์Ÿ(Semantic overhead)์ด ๊ธธ์–ด์ง€๊ฑฐ๋‚˜, ๋ชจ๋“  ์ฝ”๋“œ๊ฐ€ `shared` ๋ ˆ์ด์–ด๋กœ ์Ÿ์•„์ง€๋Š” ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค [16]. + +## ๐Ÿ”— Knowledge Connections +- **Related Topics:** [[Frontend Folder Structure]], [[Domain-Driven Design]], [[Component-Based Architecture]] +- **Projects/Contexts:** [[๋Œ€๊ทœ๋ชจ React ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜ ๋ฐ ์—”ํ„ฐํ”„๋ผ์ด์ฆˆ ์‹œ์Šคํ…œ ํ™•์žฅ์„ฑ ๊ด€๋ฆฌ]] +- **Contradictions/Notes:** ์†Œ์Šค [1, 2]๋Š” FSD๊ฐ€ ๋Œ€๊ทœ๋ชจ ํ”„๋ก ํŠธ์—”๋“œ ์‹œ์Šคํ…œ์—์„œ ์ง๊ด€์ ์ด๊ณ  ํ›Œ๋ฅญํ•œ ๊ตฌ์กฐ์  ๋Œ€์•ˆ์ด๋ผ๊ณ  ๊ฐ•์กฐํ•ฉ๋‹ˆ๋‹ค. ๋ฐ˜๋ฉด, ์†Œ์Šค [16, 17]์˜ ์‹ค์ œ ๊ฐœ๋ฐœ์ž ๋…ผ์˜์—์„œ๋Š” ํŠน์ • ๋ชจ๋“ˆ์ด ๊ธฐ๋Šฅ(Feature)์ธ์ง€ ์œ„์ ฏ(Widget)์ธ์ง€ ๊ฒฐ์ •ํ•˜๋Š” ๊ณผ์ •์ด ์ข…์ข… ๋ถˆํ•„์š”ํ•œ ์˜๋ฏธ๋ก ์  ์˜ค๋ฒ„ํ—ค๋“œ๋ฅผ ์œ ๋ฐœํ•˜๋ฉฐ, ํŒ€์˜ ํ•™์Šต ๊ณก์„ ์ด ๋†’๊ณ  ํฌ๋กœ์Šค ์ปคํŒ… ๋ฌธ์ œ(Cross-cutting concerns)๋ฅผ ๊น”๋”ํ•˜๊ฒŒ ๋ถ„๋ฆฌํ•˜๊ธฐ ์–ด๋ ต๋‹ค๋Š” ํ˜„์‹ค์ ์ธ ๋น„ํŒ์„ ์ œ์‹œํ•ฉ๋‹ˆ๋‹ค. + +--- +*Last updated: 2026-04-26* \ No newline at end of file diff --git a/00_Raw/SOLID Principles in React.md b/00_Raw/SOLID Principles in React.md new file mode 100644 index 00000000..7dc536ff --- /dev/null +++ b/00_Raw/SOLID Principles in React.md @@ -0,0 +1,28 @@ +# [[SOLID Principles in React]] + +## ๐Ÿ“Œ Brief Summary +SOLID ์›์น™์€ ๋‹จ์ผ ์ฑ…์ž„(SRP), ๊ฐœ๋ฐฉ-ํ์‡„(OCP), ๋ฆฌ์Šค์ฝ”ํ”„ ์น˜ํ™˜(LSP), ์ธํ„ฐํŽ˜์ด์Šค ๋ถ„๋ฆฌ(ISP), ์˜์กด์„ฑ ์—ญ์ „(DIP)์˜ ๋‹ค์„ฏ ๊ฐ€์ง€ ์„ค๊ณ„ ์›์น™์„ ์˜๋ฏธํ•˜๋Š” ์•ฝ์–ด์ž…๋‹ˆ๋‹ค [1, 2]. ๋ณธ๋ž˜ ๊ฐ์ฒด ์ง€ํ–ฅ ํ”„๋กœ๊ทธ๋ž˜๋ฐ(OOP)์„ ์œ„ํ•ด ๊ณ ์•ˆ๋˜์—ˆ์ง€๋งŒ, ํ•จ์ˆ˜ํ˜• ํ”„๋กœ๊ทธ๋ž˜๋ฐ์ด ์ฃผ๋„ํ•˜๋Š” ํ˜„๋Œ€ React ์ƒํƒœ๊ณ„์—์„œ๋„ ์ปดํฌ๋„ŒํŠธ์˜ ์œ ์ง€๋ณด์ˆ˜์„ฑ, ๊ฐ€๋…์„ฑ, ํ™•์žฅ์„ฑ์„ ๋†’์ด๋Š” ๋ฐ ํ•„์ˆ˜์ ์œผ๋กœ ์ ์šฉ๋ฉ๋‹ˆ๋‹ค [2, 3]. ์ด ์›์น™์€ ์ฃผ๋กœ ๋ช…ํ™•ํ•œ ๊ตฌ์กฐ์™€ ํ™•์žฅ์„ฑ์ด ์š”๊ตฌ๋˜๋Š” ํฌ๊ณ  ๋ณต์žกํ•œ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์„ ๊ฐœ๋ฐœํ•  ๋•Œ ํšจ๊ณผ์ ์œผ๋กœ ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค [4]. + +## ๐Ÿ“– Core ๋Œ€Content +* **๋‹จ์ผ ์ฑ…์ž„ ์›์น™ (SRP, Single Responsibility Principle)** + React ์ปดํฌ๋„ŒํŠธ๋‚˜ ํ›…์€ ๋‹จ ํ•˜๋‚˜์˜ ๋ช…ํ™•ํ•œ ๋ชฉ์ ์„ ๊ฐ€์ ธ์•ผ ํ•˜๋ฉฐ, ๋ณ€๊ฒฝ๋˜์–ด์•ผ ํ•˜๋Š” ์ด์œ ๋„ ๋‹จ ํ•˜๋‚˜์—ฌ์•ผ ํ•ฉ๋‹ˆ๋‹ค [5, 6]. ์˜ˆ๋ฅผ ๋“ค์–ด, 300์ค„์ด ๋„˜์–ด๊ฐ€๋Š” ์ปดํฌ๋„ŒํŠธ๋Š” ์ƒํƒœ ๊ด€๋ฆฌ, ๋ฐ์ดํ„ฐ ํŽ˜์นญ, ๋ณต์žกํ•œ JSX ๋ Œ๋”๋ง ๋“ฑ ๋„ˆ๋ฌด ๋งŽ์€ ์ž‘์—…์„ ์ˆ˜ํ–‰ํ•˜๊ณ  ์žˆ์„ ๊ฐ€๋Šฅ์„ฑ์ด ๋†’์Šต๋‹ˆ๋‹ค [5]. ์ด๋ฅผ ๋” ์ž‘๊ณ  ํ•œ ๊ฐ€์ง€ ์—ญํ• ๋งŒ ํ•˜๋Š” ์ปดํฌ๋„ŒํŠธ๋‚˜ ์ปค์Šคํ…€ ํ›…์œผ๋กœ ๋ถ„๋ฆฌํ•˜๋ฉด ์ฝ”๋“œ์˜ ๋ช…ํ™•์„ฑ๊ณผ ํ…Œ์ŠคํŠธ ๊ฐ€๋Šฅ์„ฑ์ด ํฌ๊ฒŒ ํ–ฅ์ƒ๋ฉ๋‹ˆ๋‹ค [2, 5]. + +* **๊ฐœ๋ฐฉ-ํ์‡„ ์›์น™ (OCP, Open/Closed Principle)** + ์†Œํ”„ํŠธ์›จ์–ด ์—”ํ‹ฐํ‹ฐ๋Š” ํ™•์žฅ์„ ์œ„ํ•ด์„œ๋Š” ์—ด๋ ค ์žˆ์–ด์•ผ ํ•˜์ง€๋งŒ ์ˆ˜์ •์„ ์œ„ํ•ด์„œ๋Š” ๋‹ซํ˜€ ์žˆ์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค [2]. React์—์„œ๋Š” ๊ธฐ์กด ์ปดํฌ๋„ŒํŠธ์˜ ๋‚ด๋ถ€ ์ฝ”๋“œ๋ฅผ ์ง์ ‘ ์ˆ˜์ •ํ•˜๋Š” ๋Œ€์‹ , ์ปดํฌ๋„ŒํŠธ ํ•ฉ์„ฑ(composition), `children` prop, ๋˜๋Š” ๋ Œ๋” ํ”„๋กญ์Šค(render props)๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์ƒˆ๋กœ์šด ๊ธฐ๋Šฅ์„ ์œ ์—ฐํ•˜๊ฒŒ ํ™•์žฅํ•˜๋Š” ๋ฐฉ์‹์œผ๋กœ ๊ตฌํ˜„๋ฉ๋‹ˆ๋‹ค [2, 6, 7]. + +* **๋ฆฌ์Šค์ฝ”ํ”„ ์น˜ํ™˜ ์›์น™ (LSP, Liskov Substitution Principle)** + ํ•˜์œ„(์ž์‹) ํƒ€์ž…์˜ ๊ฐ์ฒด๊ฐ€ ์ƒ์œ„(๋ถ€๋ชจ) ํƒ€์ž…์˜ ๊ฐ์ฒด๋ฅผ ์ฝ”๋“œ๋ฅผ ๊นจ๋œจ๋ฆฌ์ง€ ์•Š๊ณ  ์™„๋ฒฝํ•˜๊ฒŒ ๋Œ€์ฒดํ•  ์ˆ˜ ์žˆ์–ด์•ผ ํ•œ๋‹ค๋Š” ์›์น™์ž…๋‹ˆ๋‹ค [2, 8]. React์—์„œ๋Š” ํ•˜์œ„ ์ปดํฌ๋„ŒํŠธ๊ฐ€ ๊ธฐ๋ณธ ์ปดํฌ๋„ŒํŠธ๋ฅผ ์›ํ™œํ•˜๊ฒŒ ๋Œ€์ฒดํ•  ์ˆ˜ ์žˆ๋„๋ก ์„ค๊ณ„ํ•ด์•ผ ํ•จ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค [6]. + +* **์ธํ„ฐํŽ˜์ด์Šค ๋ถ„๋ฆฌ ์›์น™ (ISP, Interface Segregation Principle)** + ํด๋ผ์ด์–ธํŠธ๋Š” ์ž์‹ ์ด ์‚ฌ์šฉํ•˜์ง€ ์•Š๋Š” ์ธํ„ฐํŽ˜์ด์Šค๋‚˜ ๋ฐ์ดํ„ฐ์— ์˜์กดํ•ด์„œ๋Š” ์•ˆ ๋ฉ๋‹ˆ๋‹ค [2]. React์—์„œ๋Š” ์ปดํฌ๋„ŒํŠธ๊ฐ€ ์ž์‹ ์ด ์‚ฌ์šฉํ•˜์ง€ ์•Š๋Š” ๋ถˆํ•„์š”ํ•œ props๋ฅผ ๋ฐ›์ง€ ์•Š์•„์•ผ ํ•˜๋ฉฐ, ์ฑ…์ž„์„ ๋ช…ํ™•ํžˆ ๋ถ„๋ฆฌํ•˜์—ฌ ์ „๋‹ฌํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค [6]. ์˜ˆ๋ฅผ ๋“ค์–ด, ๋‹จ์ง€ `username` ๋ฌธ์ž์—ด ํ•˜๋‚˜๋งŒ ํ•„์š”ํ•œ ํ•˜์œ„ ์ปดํฌ๋„ŒํŠธ์— ๊ฑฐ๋Œ€ํ•œ `user` ๊ฐ์ฒด ์ „์ฒด๋ฅผ ์ „๋‹ฌํ•˜๋ฉด ๋ถˆํ•„์š”ํ•œ ๊ฒฐํ•ฉ์ด ๋ฐœ์ƒํ•˜๋ฏ€๋กœ ํŠน์ • ๋ฐ์ดํ„ฐ๋งŒ ๋„˜๊ฒจ์ฃผ๋Š” ๊ฒƒ์ด ๋ฐ”๋žŒ์งํ•ฉ๋‹ˆ๋‹ค [2, 7]. + +* **์˜์กด์„ฑ ์—ญ์ „ ์›์น™ (DIP, Dependency Inversion Principle)** + ๊ตฌ์ฒด์ ์ธ ๊ตฌํ˜„ ํด๋ž˜์Šค๊ฐ€ ์•„๋‹Œ ์ถ”์ƒํ™”๋‚˜ ์ธํ„ฐํŽ˜์ด์Šค์— ์˜์กดํ•ด์•ผ ํ•œ๋‹ค๋Š” ์›์น™์ž…๋‹ˆ๋‹ค [2, 9]. React ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์—์„œ๋Š” ์ปดํฌ๋„ŒํŠธ๊ฐ€ ๋‹ค๋ฅธ ์ปดํฌ๋„ŒํŠธ์— ์ง์ ‘์ ์œผ๋กœ ๊ฐ•ํ•˜๊ฒŒ ์˜์กดํ•˜๊ฒŒ ๋งŒ๋“œ๋Š” ๋Œ€์‹ , props๋ฅผ ํ†ตํ•ด ์˜์กด์„ฑ์„ ์ฃผ์ž…(inject)ํ•˜๊ฑฐ๋‚˜ Context API ๊ฐ™์€ ๊ณตํ†ต ์ถ”์ƒํ™”๋ฅผ ํ™œ์šฉํ•˜์—ฌ ์˜์กด์„ฑ์„ ๊ด€๋ฆฌํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค [2, 6]. + +## ๐Ÿ”— Knowledge Connections +- **Related Topics:** [[Clean Code]], [[DRY Principle]], [[KISS Principle]], [[YAGNI Principle]], [[Component Composition]], [[Custom Hooks]] +- **Projects/Contexts:** [[Large-scale Application Architecture]], [[Refactoring Legacy React Codebases]] +- **Contradictions/Notes:** ์†Œ์Šค ๊ฐ„์— ๋ฆฌ์Šค์ฝ”ํ”„ ์น˜ํ™˜ ์›์น™(LSP)์˜ React ์ ์šฉ ๊ฐ€๋Šฅ์„ฑ์— ๋Œ€ํ•œ ์ž‘์€ ๊ด€์  ์ฐจ์ด๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ํ•œ ์†Œ์Šค๋Š” ์„œ๋ธŒ ์ปดํฌ๋„ŒํŠธ๊ฐ€ ๋ฒ ์ด์Šค ์ปดํฌ๋„ŒํŠธ๋ฅผ ์›ํ™œํžˆ ๋Œ€์ฒดํ•˜๋Š” ๋ฐฉ์‹์œผ๋กœ LSP๋ฅผ ์ ์šฉํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ์„ค๋ช…ํ•˜์ง€๋งŒ [6], ๋‹ค๋ฅธ ์†Œ์Šค๋Š” ํ˜„๋Œ€ React์—์„œ ํด๋ž˜์Šค ์ƒ์†์„ ๊ฑฐ์˜ ์‚ฌ์šฉํ•˜์ง€ ์•Š๋Š” ํ•จ์ˆ˜ํ˜• ์ ‘๊ทผ ๋ฐฉ์‹์„ ์ทจํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์ด ์›์น™์ด ์‹ค์ œ๋กœ ์ ์šฉ๋˜๋Š” ๊ฒฝ์šฐ๋Š” ๋“œ๋ฌผ๋‹ค๊ณ  ์ง€์ ํ•ฉ๋‹ˆ๋‹ค [2]. + +--- +*Last updated: 2026-04-26* \ No newline at end of file diff --git a/10_Wiki/Topics/AI/PID-Controllers-in-AI.md b/10_Wiki/Topics/AI/PID-Controllers-in-AI.md new file mode 100644 index 00000000..ca126027 --- /dev/null +++ b/10_Wiki/Topics/AI/PID-Controllers-in-AI.md @@ -0,0 +1,28 @@ +--- +id: CTRL-PID-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [control-theory, pid, ai, robotics, feedback-loop, automation] +last_reinforced: 2026-04-26 +--- + +# [[PID Controllers in AI (AI์—์„œ์˜ PID ์ œ์–ด๊ธฐ)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๊ณผ๊ฑฐ์˜ ์˜ค์ฐจ(I)๋ฅผ ๋ฐ˜์„ฑํ•˜๊ณ , ํ˜„์žฌ์˜ ์ฐจ์ด(P)๋ฅผ ์ง์‹œํ•˜๋ฉฐ, ๋ฏธ๋ž˜์˜ ๋ณ€ํ™”(D)๋ฅผ ์˜ˆ์ธกํ•˜์—ฌ ์™„๋ฒฝํ•œ ๊ท ํ˜•์ ์„ ์‚ฌ์ˆ˜ํ•˜๋ผ" โ€” ๋น„๋ก€(Proportional), ์ ๋ถ„(Integral), ๋ฏธ๋ถ„(Derivative) ํ•ญ์˜ ์กฐํ•ฉ์„ ํ†ตํ•ด ์‹œ์Šคํ…œ์˜ ์ถœ๋ ฅ์„ ๋ชฉํ‘œ๊ฐ’์— ๋น ๋ฅด๊ณ  ์•ˆ์ •์ ์œผ๋กœ ์ˆ˜๋ ด์‹œํ‚ค๋Š” ๊ฐ€์žฅ ๋Œ€ํ‘œ์ ์ธ ํ”ผ๋“œ๋ฐฑ ์ œ์–ด ๊ธฐ์ˆ . + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Closed-loop Error Correction" โ€” ๋ชฉํ‘œ๊ฐ’๊ณผ ํ˜„์žฌ๊ฐ’์˜ ์ฐจ์ด(์˜ค์ฐจ)๋ฅผ ์‹ค์‹œ๊ฐ„์œผ๋กœ ๊ณ„์‚ฐํ•˜๊ณ , ์„ธ ๊ฐ€์ง€ ์ œ์–ด ํ•ญ์„ ํ†ตํ•ด ์˜ค์ฐจ๋ฅผ ๋ณด์ •ํ•˜์—ฌ ์™ธ๋ถ€ ๊ต๋ž€์—๋„ ๋ถˆ๊ตฌํ•˜๊ณ  ์‹œ์Šคํ…œ์„ ์•ˆ์ • ์ƒํƒœ๋กœ ์œ ์ง€ํ•˜๋Š” ํŒจํ„ด. +- **3๋Œ€ ์ œ์–ด ํ•ญ:** + - **P (Proportional):** ํ˜„์žฌ ์˜ค์ฐจ์— ๋น„๋ก€ํ•˜์—ฌ ๊ฐ•ํ•˜๊ฒŒ ๋ฐ˜์‘ (๋น ๋ฅธ ์‘๋‹ต). + - **I (Integral):** ์Œ“์ธ ์˜ค์ฐจ๋ฅผ ์ œ๊ฑฐํ•˜์—ฌ ์ž”๋ฅ˜ ํŽธ์ฐจ ํ•ด๊ฒฐ (์ •๋ฐ€๋„). + - **D (Derivative):** ์˜ค์ฐจ์˜ ๋ณ€ํ™” ์†๋„๋ฅผ ๊ฐ์ง€ํ•˜์—ฌ ์˜ค๋ฒ„์ŠˆํŠธ ์–ต์ œ (์•ˆ์ •์„ฑ). +- **์˜์˜:** AI ์—์ด์ „ํŠธ๊ฐ€ ํ˜„์‹ค ์„ธ๊ณ„์˜ ๋“œ๋ก , ๋กœ๋ด‡ ํŒ”, ์ž์œจ์ฃผํ–‰ ์กฐํ–ฅ ๋“ฑ์„ ์‹ค์ œ๋กœ ์›€์ง์ผ ๋•Œ ์‚ฌ์šฉํ•˜๋Š” ๊ฐ€์žฅ ๋ฏฟ์Œ์งํ•˜๊ณ  ๊ฒ€์ฆ๋œ ๋ฌผ๋ฆฌ ์ธํ„ฐํŽ˜์ด์Šค. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ์‚ฌ๋žŒ์ด ์ˆ˜์ž‘์—…์œผ๋กœ ์ตœ์ ์˜ ๊ณ„์ˆ˜(Gain)๋ฅผ ์ฐพ๋˜ ๋ฐฉ์‹์—์„œ, ์ด์ œ๋Š” ๊ฐ•ํ™”ํ•™์Šต(RL)์ด๋‚˜ ๋ฒ ์ด์ง€์•ˆ ์ตœ์ ํ™”๊ฐ€ ์‹ค์‹œ๊ฐ„์œผ๋กœ ๊ฐ€์žฅ ์ ํ•ฉํ•œ PID ๊ณ„์ˆ˜๋ฅผ ์ฐพ์•„์ฃผ๋Š” '์ง€๋Šฅํ˜• PID'๋กœ ์ง„ํ™”ํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Skybound ํ”„๋กœ์ ํŠธ์˜ ๋น„ํ–‰ ์œ ๋‹›๋“ค์ด ๋ชฉํ‘œ ๊ณ ๋„๋ฅผ ์œ ์ง€ํ•˜๊ฑฐ๋‚˜ ํ”๋“ค๋ฆผ์„ ๋ณด์ •ํ•  ๋•Œ, ๋‚ด๋ถ€์ ์œผ๋กœ ์ตœ์ ํ™”๋œ PID ์ œ์–ด ๋ฃจํ”„๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋ถ€๋“œ๋Ÿฌ์šด ์›€์ง์ž„์„ ๊ตฌํ˜„ํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Optimal-Control-Theory]], [[Reinforcement-Learning]], [[Robotics-Foundations]], [[Automation-Strategies]] +- **Raw Source:** [[10_Wiki/Topics/AI/PID-Controllers-in-AI.md]] diff --git a/10_Wiki/Topics/AI/Phase-Transitions-in-Learning.md b/10_Wiki/Topics/AI/Phase-Transitions-in-Learning.md new file mode 100644 index 00000000..b746e0c5 --- /dev/null +++ b/10_Wiki/Topics/AI/Phase-Transitions-in-Learning.md @@ -0,0 +1,28 @@ +--- +id: AI-PHASE-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [ai, deep-learning, phase-transitions, learning-dynamics, emergent-abilities, grokking] +last_reinforced: 2026-04-26 +--- + +# [[Phase Transitions in Learning (ํ•™์Šต์—์„œ์˜ ์ƒ์ „์ด ํ˜„์ƒ)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "์ง€๋ฃจํ•œ ์ •์ฒด๊ธฐ ๋์— ๊ฐ‘์ž‘์Šค๋Ÿฌ์šด ๊นจ๋‹ฌ์Œ(Grokking)์ด ์ฐพ์•„์˜ค๋“ฏ, ๋ชจ๋ธ์˜ ์ง€๋Šฅ์€ ์„ ํ˜•์ ์ธ ์„ฑ์žฅ์ด ์•„๋‹Œ ํญ๋ฐœ์ ์ธ '์ƒ์ „์ด'๋ฅผ ํ†ตํ•ด ๋„์•ฝํ•œ๋‹ค" โ€” ํ•™์Šต ๊ณผ์ •์—์„œ ์†์‹ค ํ•จ์ˆ˜๊ฐ€ ์™„๋งŒํ•˜๊ฒŒ ์ค„์–ด๋“ค๋‹ค๊ฐ€ ํŠน์ • ์ž„๊ณ„์ ์—์„œ ๋ชจ๋ธ์˜ ๋‚ด๋ถ€ ๊ตฌ์กฐ๋‚˜ ์ผ๋ฐ˜ํ™” ๋Šฅ๋ ฅ์ด ๊ธ‰๊ฒฉํžˆ ๋ณ€ํ™”ํ•˜๋Š” ํ˜„์ƒ. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Abrupt Structural and Functional Transformation" โ€” ๋ฌผ๋ฆฌ์  ์ƒ์ „์ด(์–ผ์Œ์ด ๋ฌผ์ด ๋˜๋Š” ๊ฒƒ)์™€ ์œ ์‚ฌํ•˜๊ฒŒ, ์‹ ๊ฒฝ๋ง์ด ๋ฌด์ž‘์œ„์ ์ธ ์ƒํƒœ์—์„œ ์งˆ์„œ ์žˆ๋Š” ๋‚ด๋ถ€ ํ‘œ์ƒ(Representation)์„ ํ˜•์„ฑํ•˜๊ฑฐ๋‚˜, ํŠน์ • ๊ทœ๋ชจ ์ด์ƒ์˜ ๋ฐ์ดํ„ฐ/ํŒŒ๋ผ๋ฏธํ„ฐ์—์„œ '์ฐฝ๋ฐœ์  ๋Šฅ๋ ฅ(Emergent Abilities)'์„ ํš๋“ํ•˜๋Š” ํŒจํ„ด. +- **์ฃผ์š” ํ˜„์ƒ:** + - **Grokking:** ํ•™์Šต ๋ฐ์ดํ„ฐ๋ฅผ ๋‹ค ์™ธ์šด(Overfitting) ์ดํ›„์—๋„ ํ•œ์ฐธ ๋” ํ•™์Šต์‹œ์ผฐ์„ ๋•Œ, ๊ฐ‘์ž๊ธฐ ์ผ๋ฐ˜ํ™” ์„ฑ๋Šฅ์ด ๊ธ‰์ƒ์Šนํ•˜๋Š” ํ˜„์ƒ. + - **Scaling Laws:** ๋ชจ๋ธ ํฌ๊ธฐ๋‚˜ ์—ฐ์‚ฐ๋Ÿ‰์ด ์ž„๊ณ„์น˜๋ฅผ ๋„˜์„ ๋•Œ ์ถ”๋ก  ๋Šฅ๋ ฅ์ด ๋น„์•ฝ์ ์œผ๋กœ ๋ฐœ์ „. + - **Double Descent:** ๋ชจ๋ธ ๋ณต์žก๋„๊ฐ€ ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ํ…Œ์ŠคํŠธ ์˜ค์ฐจ๊ฐ€ ๊ฐ์†Œํ•˜๋‹ค ์ฆ๊ฐ€ํ•˜๊ณ , ๋‹ค์‹œ ๊ฐ์†Œํ•˜๋Š” ํ˜„์ƒ. +- **์˜์˜:** AI ํ•™์Šต์„ ๋‹จ์ˆœํžˆ ์˜ค์ฐจ๋ฅผ ์ค„์ด๋Š” ๊ณผ์ •์ด ์•„๋‹Œ, ์ง€๋Šฅ์ด ํ˜•์„ฑ๋˜๋Š” ๋™์—ญํ•™์  '์ง„ํ™”'์˜ ๊ณผ์ •์œผ๋กœ ์ดํ•ดํ•˜๊ฒŒ ํ•˜๋ฉฐ, ์ดˆ๊ฑฐ๋Œ€ ๋ชจ๋ธ์˜ ์ž ์žฌ๋ ฅ์„ ์˜ˆ์ธกํ•˜๋Š” ์ง€ํ‘œ๊ฐ€ ๋จ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ํ•™์Šต์ด ์˜ค๋ž˜๋ ์ˆ˜๋ก ๋ฌด์กฐ๊ฑด ์„ฑ๋Šฅ์ด ๋‚˜๋น ์ง„๋‹ค๋Š” ์ดˆ๊ธฐ ๊ณผ์ ํ•ฉ ์ด๋ก ์„ ์ •๋ฉด์œผ๋กœ ๋ฐ˜๋ฐ•ํ•˜๋ฉฐ, ํ˜„๋Œ€ ๋”ฅ๋Ÿฌ๋‹์—์„œ๋Š” '์ƒ์ „์ด'๋ฅผ ์œ ๋„ํ•˜๊ธฐ ์œ„ํ•œ ์ถฉ๋ถ„ํ•œ ๊ณผ์ž‰ ํ•™์Šต(Over-training)์˜ ๊ฐ€์น˜๊ฐ€ ์žฌ๋ฐœ๊ฒฌ๋จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์ƒˆ๋กœ์šด ์Šคํ‚ฌ ํ•™์Šต ์‹œ, ๋‹จ์ˆœ ์ˆ˜๋ ด ์ง€์ ์„ ๋„˜์–ด ์ƒ์ „์ด ํ˜„์ƒ์ด ๋ฐœ์ƒํ•˜๋Š” '๊นŠ์€ ํ•™์Šต' ๊ตฌ๊ฐ„๊นŒ์ง€ ๋ชจ๋‹ˆํ„ฐ๋งํ•˜์—ฌ ์ตœ์ ์˜ ํ†ต์ฐฐ ์ˆ˜์ค€์„ ํ™•๋ณดํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Overfitting-and-Underfitting]], [[Deep-Learning-Foundations]], [[Emergent-Abilities-in-LLM]], [[Optimization-in-AI]] +- **Raw Source:** [[10_Wiki/Topics/AI/Phase-Transitions-in-Learning.md]] diff --git a/10_Wiki/Topics/AI/Physics-informed-Neural-Networks.md b/10_Wiki/Topics/AI/Physics-informed-Neural-Networks.md new file mode 100644 index 00000000..ab01399e --- /dev/null +++ b/10_Wiki/Topics/AI/Physics-informed-Neural-Networks.md @@ -0,0 +1,28 @@ +--- +id: AI-PINNS-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [ai, deep-learning, pinns, physics-informed-ml, pde, scientific-computing] +last_reinforced: 2026-04-26 +--- + +# [[Physics-informed Neural Networks (PINNs, ๋ฌผ๋ฆฌ ์ •๋ณด ์‹ ๊ฒฝ๋ง)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ฐ์ดํ„ฐ์˜ ๋ฐ”๋‹ค์— ๋น ์ ธ ํ—ˆ์šฐ์ ๊ฑฐ๋ฆฌ์ง€ ๋ง๊ณ , ๋ถˆ๋ณ€์˜ ๋ฌผ๋ฆฌ ๋ฒ•์น™์ด๋ผ๋Š” ๋‚˜์นจ๋ฐ˜์„ ์‹ ๊ฒฝ๋ง์˜ ์‹ฌ์žฅ์— ์ง์ ‘ ์ƒˆ๊ฒจ๋ผ" โ€” ๋”ฅ๋Ÿฌ๋‹์˜ ์œ ์—ฐํ•œ ํ•™์Šต ๋Šฅ๋ ฅ๊ณผ ๋ฌผ๋ฆฌ ๋ฒ•์น™(ํŽธ๋ฏธ๋ถ„ ๋ฐฉ์ •์‹ ๋“ฑ)์˜ ์—„๋ฐ€ํ•จ์„ ๊ฒฐํ•ฉํ•˜์—ฌ, ๋ฌผ๋ฆฌ์ ์œผ๋กœ ํƒ€๋‹นํ•œ ์˜ˆ์ธก์„ ์ˆ˜ํ–‰ํ•˜๋Š” ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ๋จธ์‹ ๋Ÿฌ๋‹ ์•„ํ‚คํ…์ฒ˜. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Physics-constrained Loss Function" โ€” ๊ด€์ธก ๋ฐ์ดํ„ฐ์™€ ์˜ˆ์ธก๊ฐ’ ์‚ฌ์ด์˜ ์˜ค์ฐจ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ, ์˜ˆ์ธก๊ฐ’์ด ๋ฌผ๋ฆฌ ๋ฐฉ์ •์‹(์˜ˆ: ๋‚˜๋น„์—-์Šคํ† ํฌ์Šค, ์—ด ๋ฐฉ์ •์‹)์„ ์–ผ๋งˆ๋‚˜ ์ž˜ ์ค€์ˆ˜ํ•˜๋Š”์ง€๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” '๋ฌผ๋ฆฌ ์†์‹ค(Physics Loss)'์„ ํ•จ๊ป˜ ์ตœ์†Œํ™”ํ•˜๋„๋ก ํ•™์Šตํ•˜๋Š” ํŒจํ„ด. +- **์ฃผ์š” ์žฅ์ :** + - **Data Efficiency:** ๋ฌผ๋ฆฌ ๋ฒ•์น™์ด ๊ฐ•๋ ฅํ•œ ๊ฐ€์ด๋“œ๋ผ์ธ ์—ญํ• ์„ ํ•˜๋ฏ€๋กœ, ํ›จ์”ฌ ์ ์€ ์–‘์˜ ๋ฐ์ดํ„ฐ๋กœ๋„ ํ•™์Šต ๊ฐ€๋Šฅ. + - **Extrapolation:** ํ•™์Šตํ•˜์ง€ ์•Š์€ ์˜์—ญ์— ๋Œ€ํ•ด์„œ๋„ ๋ฌผ๋ฆฌ์  ์ผ๊ด€์„ฑ์„ ์œ ์ง€ํ•˜๋ฉฐ ์˜ˆ์ธก ๊ฐ€๋Šฅ. + - **Scientific Discovery:** ๊ด€์ธก๊ฐ’์œผ๋กœ๋ถ€ํ„ฐ ์—ญ์œผ๋กœ ๋ฌผ๋ฆฌ ํŒŒ๋ผ๋ฏธํ„ฐ๋ฅผ ์ถ”์ •ํ•˜๋Š” ๋ฌธ์ œ(Inverse Problem) ํ•ด๊ฒฐ์— ํƒ์›”. +- **์˜์˜:** AI๋ฅผ ๋‹จ์ˆœํ•œ ๋ฐ์ดํ„ฐ ๋ถ„์„ ๋„๊ตฌ์—์„œ '๊ณผํ•™์  ๋ฐœ๊ฒฌ'๊ณผ '๊ณตํ•™์  ์„ค๊ณ„'์˜ ํ•ต์‹ฌ ํŒŒํŠธ๋„ˆ๋กœ ๊ฒฉ์ƒ์‹œํ‚จ ๊ธฐ์ˆ . + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋ฌผ๋ฆฌ ๋ฒ•์น™์€ ์ˆ˜์น˜ ํ•ด์„(FEM ๋“ฑ)์œผ๋กœ๋งŒ ํ’€์–ด์•ผ ํ•œ๋‹ค๋Š” ๊ณ ์ •๊ด€๋…์„ ๊นจ๊ณ , ์ด์ œ๋Š” ์‹ ๊ฒฝ๋ง์ด ๋ฌผ๋ฆฌ ๊ณต๊ฐ„์˜ ์—ฐ์†์ ์ธ ํ•ด(Solution)๋ฅผ ์ง์ ‘ ๊ทผ์‚ฌํ•˜์—ฌ ์‹ค์‹œ๊ฐ„ ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ๊ฐ€๋Šฅ์ผ€ ํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ํ–ฅํ›„ Skybound์˜ ๋ณต์žกํ•œ ๋ฌผ๋ฆฌ ์—”์ง„ ์ตœ์ ํ™” ์‹œ, ๋ฐ์ดํ„ฐ ๋…ธ์ด์ฆˆ์— ๊ฐ•ํ•˜๋ฉด์„œ๋„ ๋ฌผ๋ฆฌ์  ๊ฐœ์—ฐ์„ฑ์„ ๋ณด์žฅํ•˜๋Š” PINNs ๋ฐฉ๋ฒ•๋ก ์„ ์ ๊ทน ๊ฒ€ํ† ํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Partial-Differential-Equations]], [[Optimal-Control-Theory]], [[Fluid-Dynamics]], [[Scientific-Computing-in-AI]] +- **Raw Source:** [[10_Wiki/Topics/AI/Physics-informed-Neural-Networks.md]] diff --git a/10_Wiki/Topics/AI/Pipeline-Parallelism.md b/10_Wiki/Topics/AI/Pipeline-Parallelism.md new file mode 100644 index 00000000..b7a1f549 --- /dev/null +++ b/10_Wiki/Topics/AI/Pipeline-Parallelism.md @@ -0,0 +1,27 @@ +--- +id: SYS-PIPE-PAR-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [infrastructure, parallel-computing, pipeline-parallelism, distributed-training, llm-training, gpu-optimization] +last_reinforced: 2026-04-26 +--- + +# [[Pipeline Parallelism (ํŒŒ์ดํ”„๋ผ์ธ ๋ณ‘๋ ฌ์„ฑ)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๊ฑฐ๋Œ€ํ•œ ๋ชจ๋ธ์„ ํ•œ ๊ทธ๋ฆ‡์— ๋‹ด์œผ๋ ค ํ•˜์ง€ ๋ง๊ณ , ์—ฌ๋Ÿฌ ์žฅ์น˜์— ์ธต์ธต์ด ๋‚˜๋ˆ„์–ด ๋ฐฐ์น˜ํ•œ ๋’ค ๋ฐ์ดํ„ฐ์˜ ์ปจ๋ฒ ์ด์–ด ๋ฒจํŠธ๋ฅผ ๊ฐ€๋™ํ•˜๋ผ" โ€” ๋ชจ๋ธ์˜ ๋ ˆ์ด์–ด๋“ค์„ ์—ฌ๋Ÿฌ ๊ฐœ์˜ GPU์— ๋ถ„์‚ฐ ๋ฐฐ์น˜ํ•˜๊ณ , ๋ฐ์ดํ„ฐ๋ฅผ ์ˆœ์ฐจ์ ์œผ๋กœ ํ†ต๊ณผ์‹œ์ผœ ์—ฐ์‚ฐ๊ณผ ํ†ต์‹ ์„ ์ค‘์ฒฉํ•จ์œผ๋กœ์จ ํ•™์Šต ํšจ์œจ์„ ๋†’์ด๋Š” ๋ถ„์‚ฐ ํ•™์Šต ๊ธฐ์ˆ . + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Sequential Layer Partitioning and Micro-batching" โ€” ๋ชจ๋ธ์„ ์ˆ˜์ง์œผ๋กœ ์ชผ๊ฐœ์–ด ์žฅ์น˜๋ณ„๋กœ ํ• ๋‹นํ•˜๊ณ , ์•ž์„  ์žฅ์น˜์˜ ์—ฐ์‚ฐ์ด ๋๋‚  ๋•Œ๊นŒ์ง€ ๋’ท ์žฅ์น˜๊ฐ€ ๋…ธ๋Š” ์‹œ๊ฐ„(Bubble)์„ ์ค„์ด๊ธฐ ์œ„ํ•ด ๋ฏธ๋‹ˆ ๋ฐฐ์น˜๋ฅผ ๋” ์ž‘์€ ๋งˆ์ดํฌ๋กœ ๋ฐฐ์น˜๋กœ ์ชผ๊ฐœ์–ด ๋Š์ž„์—†์ด ํŒŒ์ดํ”„๋ผ์ธ์„ ์ฑ„์šฐ๋Š” ํŒจํ„ด. +- **ํ•ต์‹ฌ ์•Œ๊ณ ๋ฆฌ์ฆ˜:** + - **GPipe:** ๋งˆ์ดํฌ๋กœ ๋ฐฐ์น˜๋ฅผ ํ†ตํ•ด ์œ ํœด ์‹œ๊ฐ„์„ ์ค„์ธ ์ตœ์ดˆ์˜ ํ‘œ์ค€ ํŒŒ์ดํ”„๋ผ์ธ ๋ณ‘๋ ฌํ™”. + - **PipeDream:** ์ „๋ฐฉ ๊ณ„์‚ฐ(Forward)๊ณผ ํ›„๋ฐฉ ๊ณ„์‚ฐ(Backward)์„ ๋น„๋™๊ธฐ์ ์œผ๋กœ ์ค‘์ฒฉ์‹œ์ผœ ํšจ์œจ ๊ทน๋Œ€ํ™”. +- **์˜์˜:** ๋‹จ์ผ GPU ๋ฉ”๋ชจ๋ฆฌ ์šฉ๋Ÿ‰์„ ์ดˆ๊ณผํ•˜๋Š” ์ˆ˜์ฒœ์–ต ํŒŒ๋ผ๋ฏธํ„ฐ ๊ทœ๋ชจ์˜ ์ดˆ๊ฑฐ๋Œ€ ์–ธ์–ด ๋ชจ๋ธ(LLM) ํ•™์Šต์„ ๊ฐ€๋Šฅ์ผ€ ํ•˜๋Š” ๋ฌผ๋ฆฌ์  ์ธํ”„๋ผ์˜ ํ•„์ˆ˜ ๊ตฌ์„ฑ ์š”์†Œ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋‹จ์ˆœํžˆ ์ธต์„ ๋‚˜๋ˆ„๋ฉด ํ†ต์‹  ์˜ค๋ฒ„ํ—ค๋“œ ๋•Œ๋ฌธ์— ๋А๋ ค์งˆ ๊ฒƒ์ด๋ผ๋Š” ์šฐ๋ ค๋ฅผ '๋งˆ์ดํฌ๋กœ ๋ฐฐ์น˜'์™€ '๋น„๋™๊ธฐ ํ†ต์‹ ' ๊ธฐ์ˆ ๋กœ ๊ทน๋ณตํ•˜๋ฉฐ, ์ด์ œ๋Š” ๋ฐ์ดํ„ฐ ๋ณ‘๋ ฌํ™”(DP) ๋ฐ ํ…์„œ ๋ณ‘๋ ฌํ™”(TP)์™€ ๊ฒฐํ•ฉ๋œ ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ๋ณ‘๋ ฌํ™”(3D Parallelism)๊ฐ€ ํ‘œ์ค€์ด ๋จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ๋Œ€๊ทœ๋ชจ ์ง€์‹ ๋ชจ๋ธ์˜ ํŒŒ์ธํŠœ๋‹ ์‹œ, GPU ์ž์› ์ ์œ ์œจ์„ ์ตœ์ ํ™”ํ•˜๊ธฐ ์œ„ํ•ด ํŒŒ์ดํ”„๋ผ์ธ ๋ณ‘๋ ฌํ™” ๊ธฐ๋ฐ˜์˜ ๋ถ„์‚ฐ ํ•™์Šต ํ”„๋ ˆ์ž„์›Œํฌ(DeepSpeed ๋“ฑ)๋ฅผ ์ ๊ทน ํ™œ์šฉํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Parallel-Computing-in-AI]], [[NVIDIA-CUDA-and-AI]], [[System-Design-for-AI-Scale]], [[LLM-Training-Foundations]] +- **Raw Source:** [[10_Wiki/Topics/AI/Pipeline-Parallelism.md]] diff --git a/10_Wiki/Topics/AI/Pivot-Table-Analysis.md b/10_Wiki/Topics/AI/Pivot-Table-Analysis.md new file mode 100644 index 00000000..86b6cbd2 --- /dev/null +++ b/10_Wiki/Topics/AI/Pivot-Table-Analysis.md @@ -0,0 +1,29 @@ +--- +id: DATA-PIVOT-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [data-analysis, pivot-table, eda, business-intelligence, pandas, excel, data-summarization] +last_reinforced: 2026-04-26 +--- + +# [[Pivot Table Analysis (ํ”ผ๋ฒ— ํ…Œ์ด๋ธ” ๋ถ„์„)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ฐ์ดํ„ฐ์˜ ์ถ•์„ ๋’คํ‹€์–ด ์‹œ๊ฐ์„ ๋ฐ”๊พธ๊ณ , ๋ฐฉ๋Œ€ํ•œ ํŒŒํŽธ๋“ค ์‚ฌ์ด์—์„œ ํ•ต์‹ฌ์ ์ธ ํ†ต๊ณ„์˜ ํ˜•์ƒ์„ ๋ฐœ๊ตดํ•˜๋ผ" โ€” ์ˆ˜๋งŽ์€ ํ–‰๊ณผ ์—ด๋กœ ์ด๋ฃจ์–ด์ง„ ์›์‹œ ๋ฐ์ดํ„ฐ๋ฅผ ํŠน์ • ๊ธฐ์ค€์— ๋”ฐ๋ผ ๊ทธ๋ฃนํ™”ํ•˜๊ณ  ์š”์•ฝ(ํ•ฉ๊ณ„, ํ‰๊ท  ๋“ฑ)ํ•˜์—ฌ ๋ฐ์ดํ„ฐ์˜ ์ „์ฒด์ ์ธ ๊ตฌ์กฐ๋ฅผ ํ•œ๋ˆˆ์— ํŒŒ์•…ํ•˜๊ฒŒ ๋•๋Š” ๋ถ„์„ ๊ธฐ๋ฒ•. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Multi-dimensional Aggregation and Relational Exploration" โ€” ๋ฐ์ดํ„ฐ๋ฅผ 'ํ–‰(Index)', '์—ด(Columns)', '๊ฐ’(Values)'์˜ 3์š”์†Œ๋กœ ์žฌ๋ฐฐ์น˜ํ•˜์—ฌ, ํŠน์ • ๋ณ€์ˆ˜๋“ค ์‚ฌ์ด์˜ ์ƒ๊ด€๊ด€๊ณ„๋‚˜ ์ง‘๊ณ„๋œ ํŠธ๋ Œ๋“œ๋ฅผ ์ธํ„ฐ๋ž™ํ‹ฐ๋ธŒํ•˜๊ฒŒ ํƒ์ƒ‰ํ•˜๋Š” ํŒจํ„ด. +- **ํ•ต์‹ฌ ๊ตฌ์„ฑ ์š”์†Œ:** + - **Rows (ํ–‰):** ๋ถ„์„์˜ ๊ธฐ์ค€์ด ๋˜๋Š” ์ฃผ๋œ ๋ถ„๋ฅ˜ ํ•ญ๋ชฉ. + - **Columns (์—ด):** ๊ต์ฐจ ๋ถ„์„์„ ์œ„ํ•œ ๋ณด์กฐ ๋ถ„๋ฅ˜ ํ•ญ๋ชฉ. + - **Values (๊ฐ’):** ์‹ค์ œ ๊ณ„์‚ฐ(Sum, Mean, Count)์ด ์ˆ˜ํ–‰๋˜๋Š” ์ˆ˜์น˜ ๋ฐ์ดํ„ฐ. + - **Filters (ํ•„ํ„ฐ):** ํŠน์ • ์กฐ๊ฑด์— ๋งž๋Š” ๋ฐ์ดํ„ฐ๋งŒ ๊ณจ๋ผ๋‚ด๋Š” ์žฅ์น˜. +- **์˜์˜:** ์—‘์…€๋ถ€ํ„ฐ ํŒ๋‹ค์Šค(Pandas)๊นŒ์ง€ ๋ชจ๋“  ๋ฐ์ดํ„ฐ ๋ถ„์„ ๋„๊ตฌ์˜ ๊ธฐ๋ณธ์ด์ž, ๊ฐ€์„ค์„ ๊ฒ€์ฆํ•˜๊ณ  ์ด์ƒ์น˜๋ฅผ ๋ฐœ๊ฒฌํ•˜๋Š” ํƒ์ƒ‰์  ๋ฐ์ดํ„ฐ ๋ถ„์„(EDA)์˜ ๊ฐ€์žฅ ๊ฐ•๋ ฅํ•œ ๋ฌด๊ธฐ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋‹จ์ˆœํžˆ ์ •์ ์ธ ๋ณด๊ณ ์„œ๋ฅผ ๋งŒ๋“œ๋Š” ๋„๊ตฌ๋ฅผ ๋„˜์–ด, ์ด์ œ๋Š” ๋Œ€๊ทœ๋ชจ ํด๋ผ์šฐ๋“œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค์™€ ์—ฐ๋™๋˜์–ด ์‹ค์‹œ๊ฐ„์œผ๋กœ ์—…๋ฐ์ดํŠธ๋˜๋Š” ๋™์  ๋Œ€์‹œ๋ณด๋“œ ๋ฐ BI(Business Intelligence)์˜ ํ•ต์‹ฌ ์—”์ง„์œผ๋กœ ์ง„ํ™”ํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์ž‘์—… ํ†ต๊ณ„(์ผ๋ณ„ ์„ฑ๊ณต๋ฅ , ๋„๊ตฌ๋ณ„ ์‚ฌ์šฉ ๋นˆ๋„ ๋“ฑ)๋ฅผ ๋ถ„์„ํ•  ๋•Œ, ๋‚ด๋ถ€์ ์œผ๋กœ ํ”ผ๋ฒ— ํ…Œ์ด๋ธ” ์—ฐ์‚ฐ์„ ์ˆ˜ํ–‰ํ•˜์—ฌ ์‚ฌ์šฉ์ž์—๊ฒŒ ์ง๊ด€์ ์ธ ๋ฆฌํฌํŠธ๋ฅผ ์ž๋™ ์ƒ์„ฑํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Exploratory-Data-Analysis]], [[Pre-processing-Data-for-AI]], [[Performance-Metrics-in-AI]], [[Data-Driven-Decision-Making]] +- **Raw Source:** [[10_Wiki/Topics/AI/Pivot-Table-Analysis.md]] diff --git a/10_Wiki/Topics/AI/Platform-Engineering.md b/10_Wiki/Topics/AI/Platform-Engineering.md new file mode 100644 index 00000000..e8798fb3 --- /dev/null +++ b/10_Wiki/Topics/AI/Platform-Engineering.md @@ -0,0 +1,28 @@ +--- +id: SYS-PLAT-ENG-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [infrastructure, devops, platform-engineering, developer-experience, internal-developer-platform, idp, cloud-native] +last_reinforced: 2026-04-26 +--- + +# [[Platform Engineering (ํ”Œ๋žซํผ ์—”์ง€๋‹ˆ์–ด๋ง)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "์ธํ”„๋ผ์˜ ๋ณต์žก์„ฑ์„ ์šฐ์•„ํ•œ ์ถ”์ƒํ™”๋กœ ๊ฐ์ถ”์–ด, ๊ฐœ๋ฐœ์ž๊ฐ€ ์˜ค์ง ์ฝ”๋“œ์™€ ๋น„์ฆˆ๋‹ˆ์Šค ๊ฐ€์น˜ ์ฐฝ์ถœ์—๋งŒ ๋ชฐ์ž…ํ•  ์ˆ˜ ์žˆ๋Š” 'ํ™ฉ๊ธˆ ๊ฒฝ๋กœ(Golden Path)'๋ฅผ ์„ค๊ณ„ํ•˜๋ผ" โ€” ๊ฐœ๋ฐœํŒ€์ด ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์„ ์‹ ์†ํ•˜๊ฒŒ ๋ฐฐํฌํ•˜๊ณ  ์šด์˜ํ•  ์ˆ˜ ์žˆ๋„๋ก ๊ณตํ†ต ์ธํ”„๋ผ, ๋„๊ตฌ, ์›Œํฌํ”Œ๋กœ์šฐ๋ฅผ ํ•˜๋‚˜๋กœ ๋ฌถ์–ด ๋‚ด๋ถ€ ๊ฐœ๋ฐœ์ž ํ”Œ๋žซํผ(IDP)์„ ๊ตฌ์ถ•ํ•˜๋Š” ๊ธฐ์ˆ ์  ๋ฌธํ™”. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Self-service Infrastructure and Cognitive Load Reduction" โ€” ํด๋ผ์šฐ๋“œ ์ž์› ํ• ๋‹น, CI/CD ํŒŒ์ดํ”„๋ผ์ธ, ๋ชจ๋‹ˆํ„ฐ๋ง ๋“ฑ ๋ฐ˜๋ณต์ ์ธ ์šด์˜ ์ž‘์—…์„ ์ž๋™ํ™”๋œ ์…€ํ”„ ์„œ๋น„์Šค ์ธํ„ฐํŽ˜์ด์Šค๋กœ ์ œ๊ณตํ•จ์œผ๋กœ์จ, ๊ฐœ๋ณ„ ๊ฐœ๋ฐœ์ž๊ฐ€ ์ธํ”„๋ผ ์ƒ์„ธ ์ง€์‹ ์—†์ด๋„ ์•ˆ์ •์ ์ธ ์„œ๋น„์Šค๋ฅผ ์šด์˜ํ•˜๊ฒŒ ๋•๋Š” ํŒจํ„ด. +- **ํ•ต์‹ฌ ๋ชฉํ‘œ:** + - **Developer Experience (DX) ๊ฐœ์„ :** ๋„๊ตฌ ํƒ์ƒ‰ ๋ฐ ์„ค์ • ์‹œ๊ฐ„์„ ์ตœ์†Œํ™”. + - **Standardization:** ๋ณด์•ˆ๊ณผ ์ปดํ”Œ๋ผ์ด์–ธ์Šค๊ฐ€ ๋ณด์žฅ๋œ ํ‘œ์ค€ ํ…œํ”Œ๋ฆฟ ์‚ฌ์šฉ ์œ ๋„. + - **Scalability:** ์กฐ์ง์ด ์ปค์ ธ๋„ ์ผ๊ด€๋œ ํ’ˆ์งˆ์˜ ์šด์˜ ํ™˜๊ฒฝ ์œ ์ง€. +- **์˜์˜:** ๋ฐ๋ธŒ์˜ต์Šค(DevOps)๊ฐ€ '๋ฐฉ์‹'์ด๋ผ๋ฉด, ํ”Œ๋žซํผ ์—”์ง€๋‹ˆ์–ด๋ง์€ ์ด๋ฅผ ์‹คํ˜„ํ•˜๋Š” '์‹ค์ฒด(IDP)'์ด๋ฉฐ, ํŠนํžˆ ์ˆ˜๋งŽ์€ ๋งˆ์ดํฌ๋กœ์„œ๋น„์Šค์™€ AI ์—์ด์ „ํŠธ๊ฐ€ ์–ฝํžŒ ํ˜„๋Œ€ ์‹œ์Šคํ…œ์˜ ๋ณต์žก๋„๋ฅผ ์ œ์–ดํ•˜๋Š” ํ•ต์‹ฌ ์—”์ง„. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋‹จ์ˆœํžˆ ํ‹ฐ์ผ“์„ ๋ฐ›์•„ ์ธํ”„๋ผ๋ฅผ ๊ตฌ์ถ•ํ•ด์ฃผ๋˜ ์šด์˜ํŒ€(Ops)์—์„œ ๋ฒ—์–ด๋‚˜, ์ด์ œ๋Š” ์ธํ”„๋ผ ์ž์ฒด๋ฅผ '์ œํ’ˆ'์œผ๋กœ ๋ณด๊ณ  ๊ฐœ๋ฐœ์ž(๊ณ ๊ฐ)๋ฅผ ์œ„ํ•œ ์ตœ์ ์˜ UX๋ฅผ ์ œ๊ณตํ•˜๋Š” ์ œํ’ˆ ๊ด€๋ฆฌ(Product Management) ๊ด€์ ์œผ๋กœ ์ „ํ™˜๋จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์—ฐ์‚ฐ ์ž์›๊ณผ ์ง€์‹ ๋ฒ ์ด์Šค๋ฅผ ๊ด€๋ฆฌํ•˜๋Š” ๋‚ด๋ถ€ ์ธํ”„๋ผ๋ฅผ ํ”Œ๋žซํผ ์—”์ง€๋‹ˆ์–ด๋ง ์›์น™์— ๋”ฐ๋ผ ์„ค๊ณ„ํ•˜์—ฌ, ์ƒˆ๋กœ์šด ์Šคํ‚ฌ์ด๋‚˜ ๋ชจ๋“ˆ ์ถ”๊ฐ€ ์‹œ ์ธํ”„๋ผ ์„ค์ • ์˜ค๋ฒ„ํ—ค๋“œ ์—†์ด ์ฆ‰๊ฐ์ ์ธ ํ™•์žฅ์ด ๊ฐ€๋Šฅํ•˜๋„๋ก ํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Microservices-Architecture]], [[System-Design-for-AI-Scale]], [[High-Availability-Systems]], [[Modern-Website-Architecture]] +- **Raw Source:** [[10_Wiki/Topics/AI/Platform-Engineering.md]] diff --git a/10_Wiki/Topics/AI/Point-Cloud-Processing.md b/10_Wiki/Topics/AI/Point-Cloud-Processing.md new file mode 100644 index 00000000..a97eb186 --- /dev/null +++ b/10_Wiki/Topics/AI/Point-Cloud-Processing.md @@ -0,0 +1,28 @@ +--- +id: CV-POINT-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [computer-vision, point-cloud, 3d-deep-learning, lidar, robotics, autonomous-driving, pointnet] +last_reinforced: 2026-04-26 +--- + +# [[Point Cloud Processing (ํฌ์ธํŠธ ํด๋ผ์šฐ๋“œ ์ฒ˜๋ฆฌ)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ฌด์งˆ์„œํ•˜๊ฒŒ ํฉ์–ด์ง„ ์ˆ˜๋ฐฑ๋งŒ ๊ฐœ์˜ ์ ๋“ค ์‚ฌ์ด์—์„œ ๊ณต๊ฐ„์˜ ์งˆ์„œ์™€ ์‚ฌ๋ฌผ์˜ ํ˜•์ƒ์„ ๋ฐœ๊ตดํ•˜์—ฌ, ๊ธฐ๊ณ„์—๊ฒŒ ์™„๋ฒฝํ•œ 3D ์ž…์ฒด ์‹œ๊ฐ์„ ์„ ์‚ฌํ•˜๋ผ" โ€” 3D ๊ณต๊ฐ„์ƒ์˜ ์ขŒํ‘œ์  ์ง‘ํ•ฉ(Point Cloud)์œผ๋กœ๋ถ€ํ„ฐ ๊ฐœ์ฒด๋ฅผ ์‹๋ณ„ํ•˜๊ณ  ๋ถ„๋ฅ˜ํ•˜๋ฉฐ ๊ธฐํ•˜ํ•™์  ๊ตฌ์กฐ๋ฅผ ์ถ”์ถœํ•˜๋Š” ์ปดํ“จํ„ฐ ๋น„์ „ ๊ธฐ์ˆ . + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Permutation Invariance and Local Feature Aggregation" โ€” ์ž…๋ ฅ๋˜๋Š” ์ ๋“ค์˜ ์ˆœ์„œ๊ฐ€ ๋ฐ”๋€Œ์–ด๋„ ๋™์ผํ•œ ์‚ฌ๋ฌผ๋กœ ์ธ์‹(์ˆœ์„œ ๋ถˆ๋ณ€์„ฑ)ํ•ด์•ผ ํ•˜๋ฉฐ, ์ฃผ๋ณ€ ์ ๋“ค๊ณผ์˜ ์ƒ๋Œ€์  ์œ„์น˜ ๊ด€๊ณ„๋ฅผ ํŒŒ์•…ํ•˜์—ฌ ์‚ฌ๋ฌผ์˜ ๋ฏธ์„ธํ•œ ๊ณก๋ฅ ์ด๋‚˜ ๋ชจ์„œ๋ฆฌ ํŠน์ง•์„ ์ถ”์ถœํ•˜๋Š” ๋”ฅ๋Ÿฌ๋‹ ํŒจํ„ด. +- **์ฃผ์š” ๊ธฐ๋ฒ•:** + - **Point-based (PointNet):** ์  ๋ฐ์ดํ„ฐ๋ฅผ ์ง์ ‘ ์ฒ˜๋ฆฌํ•˜์—ฌ ๋Œ€์นญ ํ•จ์ˆ˜๋กœ ํŠน์ง• ์ถ”์ถœ. + - **Voxel-based:** 3D ๊ณต๊ฐ„์„ ๊ฒฉ์ž(Voxel)๋กœ ๋‚˜๋ˆ„์–ด 3D CNN ์ ์šฉ. + - **Graph-based:** ์ ๋“ค์„ ๊ทธ๋ž˜ํ”„์˜ ๋…ธ๋“œ๋กœ ๋ณด๊ณ  ๊ธฐํ•˜ํ•™์  ๊ด€๊ณ„ ํ•™์Šต. +- **์˜์˜:** ์ž์œจ์ฃผํ–‰์ฐจ์˜ ์ •๋ฐ€ํ•œ ์žฅ์• ๋ฌผ ๊ฑฐ๋ฆฌ ์ธก์ •, ์‚ฐ์—…์šฉ ๋กœ๋ด‡์˜ ์ •๊ตํ•œ ๋ฌผ์ฒด ์ง‘๊ธฐ, ๋””์ง€ํ„ธ ํŠธ์œˆ(Digital Twin) ๊ตฌ์ถ• ๋“ฑ 3์ฐจ์› ๋ฌผ๋ฆฌ ํ™˜๊ฒฝ๊ณผ ์ƒํ˜ธ์ž‘์šฉํ•˜๋Š” ๋ชจ๋“  ์ง€๋Šฅํ˜• ์‹œ์Šคํ…œ์˜ ํ•„์ˆ˜ ๊ธฐ๋ฐ˜ ๊ธฐ์ˆ . + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ์  ๋ฐ์ดํ„ฐ๋ฅผ ์ฒ˜๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด 2D ์ด๋ฏธ์ง€๋กœ ํˆฌ์˜(Projection)ํ•˜๋˜ ๋ฐฉ์‹์—์„œ, ์ด์ œ๋Š” ๋ฐ์ดํ„ฐ์˜ ์›ํ˜•์„ ๋ณด์กดํ•˜๋ฉฐ 3์ฐจ์› ๊ธฐํ•˜ ๊ตฌ์กฐ๋ฅผ ์ง์ ‘ ํ•™์Šตํ•˜๋Š” ์‹ ๊ฒฝ๋ง(PointNet++, DGCNN ๋“ฑ)์ด ์‹ค์งˆ์ ์ธ ํ‘œ์ค€์ด ๋จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Skybound ํ”„๋กœ์ ํŠธ์˜ ์ง€ํ˜• ๋ถ„์„ ๋ฐ ์  ์œ ๋‹›์˜ ์ถฉ๋Œ ํŒ์ • ์‹œ์Šคํ…œ ์„ค๊ณ„ ์‹œ, ํฌ์ธํŠธ ํด๋ผ์šฐ๋“œ ์ฒ˜๋ฆฌ ์›๋ฆฌ๋ฅผ ํ™œ์šฉํ•˜์—ฌ ๋ณต์žกํ•œ 3D ์ง€ํ˜•์—์„œ์˜ ์ตœ์  ๊ฒฝ๋กœ๋ฅผ ์‚ฐ์ถœํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Computer-Vision-Foundations]], [[Object-Detection-Foundations]], [[Robotics-Foundations]], [[Neural-Networks-for-Beginners]] +- **Raw Source:** [[10_Wiki/Topics/AI/Point-Cloud-Processing.md]] diff --git a/10_Wiki/Topics/AI/Policy-Gradient-Methods.md b/10_Wiki/Topics/AI/Policy-Gradient-Methods.md index e9a4b90f..99960781 100644 --- a/10_Wiki/Topics/AI/Policy-Gradient-Methods.md +++ b/10_Wiki/Topics/AI/Policy-Gradient-Methods.md @@ -1,28 +1,28 @@ --- -id: PG-METHOD-001 +id: RL-PG-001 category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" confidence_score: 1.0 -tags: [reinforcement-learning, ai, policy-gradient, optimization] +tags: [ai, reinforcement-learning, policy-gradient, reinforce, ppo, trpo, continuous-control] last_reinforced: 2026-04-26 --- -# [[Policy Gradient Methods (์ •์ฑ… ๊ฒฝ์‚ฌ๋ฒ•)]] +# [[Policy Gradient Methods (์ •์ฑ… ๊ฒฝ์‚ฌ ๊ธฐ๋ฒ•)]] ## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) -> "ํ–‰๋™์˜ ๊ฐ€์น˜๋ฅผ ๊ณ„์‚ฐํ•˜์ง€ ๋ง๊ณ , ์ข‹์€ ํ–‰๋™์˜ ํ™•๋ฅ ์„ ์ง์ ‘ ๋†’์—ฌ๋ผ" โ€” ๊ฐ€์น˜ ํ•จ์ˆ˜(Value Function)๋ฅผ ๊ฑฐ์น˜์ง€ ์•Š๊ณ  ์‹ ๊ฒฝ๋ง์ด ์ง์ ‘ ์ •์ฑ…($\pi$)์„ ์ถœ๋ ฅํ•˜๊ฒŒ ํ•˜์—ฌ, ๊ธฐ๋Œ€ ๋ณด์ƒ์„ ์ตœ๋Œ€ํ™”ํ•˜๋Š” ๋ฐฉํ–ฅ์œผ๋กœ ์ •์ฑ…์˜ ํŒŒ๋ผ๋ฏธํ„ฐ๋ฅผ ์—…๋ฐ์ดํŠธํ•˜๋Š” ๊ฐ•ํ™”ํ•™์Šต ๊ธฐ๋ฒ•. +> "ํ–‰๋™์˜ ๊ฐ€์น˜๋ฅผ ๋ฌป์ง€ ๋ง๊ณ , ์Šน๋ฆฌ๋กœ ์ด๋„๋Š” '์„ ํƒ์˜ ํ™•๋ฅ ' ์ž์ฒด๋ฅผ ์ง์ ‘์ ์œผ๋กœ ๊ฐ•ํ™”ํ•˜๋ผ" โ€” ์—์ด์ „ํŠธ์˜ ์ •์ฑ…(Policy)์„ ๋งค๊ฐœ๋ณ€์ˆ˜ํ™”๋œ ํ•จ์ˆ˜๋กœ ์ •์˜ํ•˜๊ณ , ๊ธฐ๋Œ€ ๋ณด์ƒ์„ ์ตœ๋Œ€ํ™”ํ•˜๋Š” ๋ฐฉํ–ฅ์œผ๋กœ ์ •์ฑ…์˜ ๊ฒฝ์‚ฌ(Gradient)๋ฅผ ๋”ฐ๋ผ ๊ฐ€์ค‘์น˜๋ฅผ ์—…๋ฐ์ดํŠธํ•˜๋Š” ๊ฐ•ํ™”ํ•™์Šต ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฐ. ## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) -- **์ถ”์ถœ๋œ ํŒจํ„ด:** ์—์ด์ „ํŠธ๊ฐ€ ์ˆ˜ํ–‰ํ•œ ํ–‰๋™ ์‹œํ€€์Šค๊ฐ€ ๋†’์€ ๋ณด์ƒ์„ ๋ฐ›์œผ๋ฉด ํ•ด๋‹น ํ–‰๋™๋“ค์ด ๋‚˜ํƒ€๋‚  ํ™•๋ฅ ์„ ๋†’์ด๊ณ , ๋‚ฎ์€ ๋ณด์ƒ์„ ๋ฐ›์œผ๋ฉด ๋‚ฎ์ถ”๋Š” ๋ฐฉ์‹์œผ๋กœ ์ตœ์ ์˜ ์ „๋žต์„ ์ง์ ‘ ํƒ์ƒ‰ํ•˜๋Š” ํŒจํ„ด. -- **์„ธ๋ถ€ ๋‚ด์šฉ:** - - **Stochastic Policy:** ํ–‰๋™์„ ํ™•๋ฅ ์ ์œผ๋กœ ๊ฒฐ์ •ํ•˜๋ฏ€๋กœ ํƒ์ƒ‰(Exploration)์ด ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ์ด๋ฃจ์–ด์ง. - - **High-dimensional Action Spaces:** ๊ฐ€์น˜ ๊ธฐ๋ฐ˜ ๋ฐฉ์‹(DQN ๋“ฑ)๊ณผ ๋‹ฌ๋ฆฌ ์—ฐ์†์ ์ด๊ฑฐ๋‚˜ ๋งค์šฐ ํฐ ์•ก์…˜ ๊ณต๊ฐ„์—์„œ๋„ ํšจ๊ณผ์ ์ž„. - - **REINFORCE Algorithm:** ๊ฐ€์žฅ ๊ธฐ๋ณธ์ ์ธ ์ •์ฑ… ๊ฒฝ์‚ฌ ์•Œ๊ณ ๋ฆฌ์ฆ˜. ์—ํ”ผ์†Œ๋“œ ์ „์ฒด์˜ ๋ณด์ƒ์„ ์‚ฌ์šฉํ•˜์—ฌ ์—…๋ฐ์ดํŠธ. - - **Variance Problem:** ๋ณด์ƒ์˜ ๋ณ€๋™์„ฑ์ด ์ปค ํ•™์Šต์ด ๋ถˆ์•ˆ์ •ํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ, ์ด๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด ๋ฒ ์ด์Šค๋ผ์ธ(Baseline)์ด๋‚˜ ์•กํ„ฐ-ํฌ๋ฆฌํ‹ฑ(Actor-Critic) ๊ตฌ์กฐ ์‚ฌ์šฉ. +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Direct Policy Optimization and Log-probability Scaling" โ€” ์ข‹์€ ๋ณด์ƒ์„ ๊ฐ€์ ธ์˜จ ํ–‰๋™์˜ ๋ฐœ์ƒ ํ™•๋ฅ ($\log \pi$)์€ ๋†’์ด๊ณ , ๋‚˜์œ ๊ฒฐ๊ณผ์˜ ํ™•๋ฅ ์€ ๋‚ฎ์ถ”๋Š” ์ˆ˜์น˜์  ์—…๋ฐ์ดํŠธ๋ฅผ ํ†ตํ•ด, ๋ชจ๋ธ์ด ์ ์ง„์ ์œผ๋กœ ์ตœ์ ์˜ ํ–‰๋™ ์‹œํ€€์Šค๋ฅผ ํ•™์Šตํ•˜๊ฒŒ ํ•˜๋Š” ํŒจํ„ด. +- **์ฃผ์š” ์•Œ๊ณ ๋ฆฌ์ฆ˜:** + - **REINFORCE:** ์—ํ”ผ์†Œ๋“œ๊ฐ€ ๋๋‚œ ๋’ค ์ „์ฒด ๋ณด์ƒ์„ ๋ฐ”ํƒ•์œผ๋กœ ์—…๋ฐ์ดํŠธํ•˜๋Š” ๊ธฐ์ดˆ์  ๊ธฐ๋ฒ•. + - **PPO (Proximal Policy Optimization):** ์ •์ฑ… ๋ณ€ํ™”๋Ÿ‰์„ ์ œํ•œํ•˜์—ฌ ํ•™์Šต์˜ ์•ˆ์ •์„ฑ์„ ๊ทน๋Œ€ํ™”ํ•œ ํ˜„๋Œ€ ํ‘œ์ค€ ๊ธฐ๋ฒ•. + - **Actor-Critic:** ์ •์ฑ…์„ ๊ฒฐ์ •ํ•˜๋Š” Actor์™€ ๊ทธ ๊ฐ€์น˜๋ฅผ ํ‰๊ฐ€ํ•˜๋Š” Critic์„ ๊ฒฐํ•ฉํ•˜์—ฌ ๋ถ„์‚ฐ์„ ์ค„์ž„. +- **์˜์˜:** ํ–‰๋™ ๊ณต๊ฐ„์ด ๋ฌดํ•œํžˆ ๋„“์€ ์—ฐ์†์  ์ œ์–ด(Robotics) ๋ฌธ์ œ์—์„œ ํƒ์›”ํ•œ ์„ฑ๋Šฅ์„ ๋ฐœํœ˜ํ•˜๋ฉฐ, ์ธ๊ฐ„์˜ ์„ ํ˜ธ๋„๋ฅผ ๋ฐ˜์˜ํ•˜๋Š” RLHF(Reinforcement Learning from Human Feedback)์˜ ํ•ต์‹ฌ ์—”์ง„์œผ๋กœ ํ™œ์šฉ๋จ. ## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) -- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๊ฐ€์น˜ ํ•จ์ˆ˜ ํ•™์Šต์—๋งŒ ์ง‘์ค‘ํ•˜๋˜ ์ดˆ๊ธฐ ๊ฐ•ํ™”ํ•™์Šต์—์„œ, ๋” ๋ณต์žกํ•˜๊ณ  ์œ ์—ฐํ•œ ํ–‰๋™ ์ œ์–ด๊ฐ€ ๊ฐ€๋Šฅํ•œ ์ •์ฑ… ๊ธฐ๋ฐ˜ ํ•™์Šต์œผ๋กœ ์ค‘์‹ฌ์ถ•์ด ์ด๋™. -- **์ •์ฑ… ๋ณ€ํ™”:** Skybound์˜ ๋ณด์Šค AI ํ•™์Šต ์‹œ, ๋ณต์žกํ•œ ํŒจํ„ด์„ ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ์ƒ์„ฑํ•˜๊ธฐ ์œ„ํ•ด PPO(Proximal Policy Optimization)์™€ ๊ฐ™์€ ๊ณ ๋„ํ™”๋œ ์ •์ฑ… ๊ฒฝ์‚ฌ๋ฒ•์„ ์ ์šฉํ•จ. +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๊ฐ€์น˜ ๊ธฐ๋ฐ˜(Q-Learning ๋“ฑ) ๊ธฐ๋ฒ•๋ณด๋‹ค ๋ฐ์ดํ„ฐ ํšจ์œจ์„ฑ์ด ๋–จ์–ด์ง„๋‹ค๋Š” ๋น„ํŒ์ด ์žˆ์—ˆ์œผ๋‚˜, PPO์™€ ๊ฐ™์€ ์•ˆ์ •์ ์ธ ์—…๋ฐ์ดํŠธ ๊ธฐ๋ฒ•๊ณผ ๋Œ€๊ทœ๋ชจ ๋ณ‘๋ ฌ ์ƒ˜ํ”Œ๋ง์ด ๊ฒฐํ•ฉ๋˜๋ฉด์„œ ํ˜„๋Œ€ ์ดˆ๊ฑฐ๋Œ€ AI ๋ชจ๋ธ ํŠœ๋‹์˜ ํ•„์ˆ˜ ๊ธฐ์ˆ ๋กœ ์ž๋ฆฌ๋งค๊น€ํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ๋ณตํ•ฉ ์ž‘์—… ๊ณ„ํš ์ˆ˜๋ฆฝ ์‹œ, ๊ฐ ๋‹จ๊ณ„๋ณ„ ๋„๊ตฌ ์„ ํƒ ํ™•๋ฅ ์„ ์ตœ์ ํ™”ํ•˜๊ธฐ ์œ„ํ•ด PPO ๊ธฐ๋ฐ˜์˜ ์ •์ฑ… ๊ฒฝ์‚ฌ ํ•™์Šต ๋ชจ๋ธ์„ ์‚ฌ์šฉํ•จ. ## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) -- [[Reinforcement-Learning]], [[Actor-Critic-Methods]], [[Q-Learning]], [[PPO]] +- [[Reinforcement-Learning]], [[Proximal-Policy-Optimization-PPO]], [[Actor-Critic-Models]], [[Off-policy-vs-On-policy-Learning]] - **Raw Source:** [[10_Wiki/Topics/AI/Policy-Gradient-Methods.md]] diff --git a/10_Wiki/Topics/AI/Pose-Estimation.md b/10_Wiki/Topics/AI/Pose-Estimation.md new file mode 100644 index 00000000..ca5c65d9 --- /dev/null +++ b/10_Wiki/Topics/AI/Pose-Estimation.md @@ -0,0 +1,29 @@ +--- +id: CV-POSE-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [computer-vision, pose-estimation, keypoint-detection, human-computer-interaction, mediapipe, motion-capture] +last_reinforced: 2026-04-26 +--- + +# [[Pose Estimation (์ž์„ธ ์ถ”์ •)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "์ธ์ฒด์˜ ๊ฒ‰๋ชจ์Šต ๋„ˆ๋จธ์— ์ˆจ๊ฒจ์ง„ 'ํ•ด๊ณจ ๊ตฌ์กฐ(Skeletal Structure)'๋ฅผ ๋ฐœ๊ตดํ•˜์—ฌ, ์ธ๊ฐ„์˜ ์›€์ง์ž„์„ ๊ธฐ๊ณ„๊ฐ€ ์ดํ•ดํ•  ์ˆ˜ ์žˆ๋Š” ์ขŒํ‘œ์˜ ์‹œํ€€์Šค๋กœ ๋ฒˆ์—ญํ•˜๋ผ" โ€” ์ด๋ฏธ์ง€๋‚˜ ๋น„๋””์˜ค์—์„œ ์ธ์ฒด์˜ ์ฃผ์š” ๊ด€์ ˆ(Keypoints) ์œ„์น˜๋ฅผ ํƒ์ง€ํ•˜๊ณ  ์ด๋“ค์˜ ์—ฐ๊ฒฐ ๊ด€๊ณ„๋ฅผ ํ†ตํ•ด ์ „์ฒด์ ์ธ ์ž์„ธ๋‚˜ ๋™์ž‘์„ ํŒŒ์•…ํ•˜๋Š” ๊ธฐ์ˆ . + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Part-based Representation and Geometric Constraints" โ€” ์‹ ์ฒด๋ฅผ ๋จธ๋ฆฌ, ์–ด๊นจ, ๋ฌด๋ฆŽ ๋“ฑ ์—ฌ๋Ÿฌ ๋ถ€์œ„๋กœ ๋‚˜๋ˆ„์–ด ๊ฐ ๋ถ€์œ„์˜ ์กด์žฌ ํ™•๋ฅ  ๋งต(Heatmap)์„ ์ƒ์„ฑํ•˜๊ณ , ์ธ์ฒด ๊ตฌ์กฐ์ƒ ๊ฐ€๋Šฅํ•œ ์—ฐ๊ฒฐ ๋ฒ”์œ„๋ฅผ ๊ณ ๋ คํ•˜์—ฌ ์ „์ฒด์ ์ธ ํฌ์ฆˆ๋ฅผ ์™„์„ฑํ•˜๋Š” ํŒจํ„ด. +- **์ฃผ์š” ์ ‘๊ทผ ๋ฐฉ์‹:** + - **2D Pose Estimation:** ํ‰๋ฉด ์ด๋ฏธ์ง€์ƒ์˜ x, y ์ขŒํ‘œ ์ถ”์ถœ (OpenPose, MediaPipe ๋“ฑ). + - **3D Pose Estimation:** ๊นŠ์ด ์ •๋ณด๋ฅผ ํฌํ•จํ•œ ์ž…์ฒด ์ขŒํ‘œ ์ถ”์ถœ. + - **Bottom-up:** ์ด๋ฏธ์ง€ ๋‚ด ๋ชจ๋“  ๊ด€์ ˆ์ ์„ ๋จผ์ € ์ฐพ๊ณ  ๊ฐ ์‚ฌ๋žŒ์—๊ฒŒ ํ• ๋‹น (๋‹ค์ˆ˜ ์ธ์›์— ์œ ๋ฆฌ). + - **Top-down:** ์‚ฌ๋žŒ์„ ๋จผ์ € ํƒ์ง€(Object Detection)ํ•˜๊ณ  ๊ทธ ์•ˆ์—์„œ ๊ด€์ ˆ ์ถ”์ถœ (์ •๋ฐ€๋„์— ์œ ๋ฆฌ). +- **์˜์˜:** ํ™ˆ ํŠธ๋ ˆ์ด๋‹ ์•ฑ์˜ ๋™์ž‘ ๊ต์ •, ์ˆ˜์–ด ๋ฒˆ์—ญ, ์˜ํ™”/๊ฒŒ์ž„์˜ ๋ชจ์…˜ ์บก์ฒ˜, ๋ณดํ–‰์ž ํ–‰๋™ ์˜ˆ์ธก ๋“ฑ ์ธ๊ฐ„ ์ค‘์‹ฌ์˜ ์ธํ„ฐ๋ž™์…˜์ด ํ•„์š”ํ•œ ๋ชจ๋“  ์ง€๋Šฅํ˜• ์„œ๋น„์Šค์˜ ํ•ต์‹ฌ ๊ธฐ์ˆ . + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๊ณ ๊ฐ€์˜ ๋งˆ์ปค๋ฅผ ๋ชธ์— ๋ถ™์—ฌ์•ผ ํ–ˆ๋˜ ์ „์šฉ ์žฅ๋น„ ๊ธฐ๋ฐ˜์˜ ๋ชจ์…˜ ์บก์ฒ˜ ์‹œ์žฅ์—์„œ, ์ด์ œ๋Š” ์Šค๋งˆํŠธํฐ ์นด๋ฉ”๋ผ ํ•œ ๋Œ€์™€ ๊ฐ€๋ฒผ์šด ์‹ ๊ฒฝ๋ง ๋ชจ๋ธ๋งŒ์œผ๋กœ๋„ ์‹ค์‹œ๊ฐ„ ์ž์„ธ ์ถ”์ •์ด ๊ฐ€๋Šฅํ•œ '๋งˆ์ปค๋ฆฌ์Šค(Markerless)' ์‹œ๋Œ€๋กœ ์™„์ „ํžˆ ์ง„์ž…ํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์ œ์Šค์ฒ˜ ์ธ์‹ ๊ธฐ๋Šฅ์„ ๊ฐœ๋ฐœํ•  ๋•Œ, ์‚ฌ์šฉ์ž ๊ฐœ์ธ์ •๋ณด ๋ณดํ˜ธ๋ฅผ ์œ„ํ•ด ์ด๋ฏธ์ง€๋ฅผ ์ง์ ‘ ์ €์žฅํ•˜์ง€ ์•Š๊ณ  ๋žœ๋“œ๋งˆํฌ ์ขŒํ‘œ(Keypoints)๋งŒ์„ ์ถ”์ถœํ•˜์—ฌ ์ฒ˜๋ฆฌํ•˜๋Š” ๋ณด์•ˆ ์ค‘์‹ฌ์˜ ์ž์„ธ ์ถ”์ • ํŒŒ์ดํ”„๋ผ์ธ์„ ๊ตฌ์ถ•ํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Object-Detection-Foundations]], [[Computer-Vision-Foundations]], [[Personal-Information-Security]], [[Hugging-Face-Integration]] +- **Raw Source:** [[10_Wiki/Topics/AI/Pose-Estimation.md]] diff --git a/10_Wiki/Topics/AI/Positive-Reinforcement.md b/10_Wiki/Topics/AI/Positive-Reinforcement.md new file mode 100644 index 00000000..ba2222c3 --- /dev/null +++ b/10_Wiki/Topics/AI/Positive-Reinforcement.md @@ -0,0 +1,28 @@ +--- +id: PSYCH-POS-REINF-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [psychology, ai, reinforcement-learning, positive-reinforcement, behaviorism, reward-design] +last_reinforced: 2026-04-26 +--- + +# [[Positive Reinforcement (์ •์  ๊ฐ•ํ™”)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ฐ”๋žŒ์งํ•œ ํ–‰๋™์˜ ๋์— '๋‹ฌ์ฝคํ•œ ๋ณด์ƒ'์„ ๋ฐฐ์น˜ํ•˜์—ฌ, ์—์ด์ „ํŠธ๊ฐ€ ์Šค์Šค๋กœ ์ตœ์ ์˜ ๊ธธ์„ ์—ด๋งํ•˜๊ฒŒ ํ•˜๋ผ" โ€” ํŠน์ • ํ–‰๋™ ๋’ค์— ๊ธ์ •์ ์ธ ์ž๊ทน(๋ณด์ƒ)์„ ์ œ๊ณตํ•จ์œผ๋กœ์จ ํ•ด๋‹น ํ–‰๋™์ด ๋ฏธ๋ž˜์— ๋‹ค์‹œ ๋ฐœ์ƒํ•  ํ™•๋ฅ ์„ ๋†’์ด๋Š” ์‹ฌ๋ฆฌํ•™์  ์›๋ฆฌ์ด์ž ๊ฐ•ํ™”ํ•™์Šต์˜ ํ•ต์‹ฌ ๋ฉ”์ปค๋‹ˆ์ฆ˜. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Target Behavior and Reward Feedback Loop" โ€” ์—์ด์ „ํŠธ๊ฐ€ ๋ชฉํ‘œ์— ๋ถ€ํ•ฉํ•˜๋Š” ์ƒํƒœ์— ๋„๋‹ฌํ•˜๊ฑฐ๋‚˜ ์•ก์…˜์„ ์ˆ˜ํ–‰ํ–ˆ์„ ๋•Œ ์ฆ‰๊ฐ์ ์ธ ์ˆ˜์น˜์  ๋ณด์ƒ์„ ๋ถ€์—ฌํ•˜๊ณ , ๋ชจ๋ธ์ด ์ด ๋ณด์ƒ์˜ ์ดํ•ฉ(Return)์„ ์ตœ๋Œ€ํ™”ํ•˜๋Š” ๋ฐฉํ–ฅ์œผ๋กœ ์ž์‹ ์˜ ์ •์ฑ…์„ ์Šค์Šค๋กœ ์ˆ˜์ •ํ•˜๊ฒŒ ๋งŒ๋“œ๋Š” ํŒจํ„ด. +- **ํ•ต์‹ฌ ์š”์†Œ:** + - **Reinforcer (๊ฐ•ํ™”๋ฌผ):** ๋ณด์ƒ ๊ทธ ์ž์ฒด (์˜ˆ: ์ ์ˆ˜, ์นญ์ฐฌ, ํ† ํฐ). + - **Timing:** ํ–‰๋™ ์งํ›„์˜ ์ฆ‰๊ฐ์ ์ธ ๋ณด์ƒ์ด ํ•™์Šต ํšจ์œจ์„ ๊ทน๋Œ€ํ™”ํ•จ. + - **Reward Shaping:** ๋ณต์žกํ•œ ๋ชฉํ‘œ๋ฅผ ๋‹ฌ์„ฑํ•˜๊ธฐ ์œ„ํ•ด ์ž‘์€ ๋‹จ๊ณ„๋ณ„ ์„ฑ๊ณต์—๋„ ๋ณด์ƒ์„ ์ชผ๊ฐœ์–ด ๋ฐฐ์น˜ํ•˜๋Š” ๊ธฐ์ˆ . +- **์˜์˜:** AI์—๊ฒŒ '๋ฌด์—‡์„ ํ•˜์ง€ ๋งˆ๋ผ'๋Š” ๊ธˆ์ง€ ๋ช…๋ น๋ณด๋‹ค '์ด๊ฒƒ์„ ํ•˜๋ฉด ์ข‹๋‹ค'๋Š” ๊ธ์ •์  ์œ ์ธ์„ ์ œ๊ณตํ•  ๋•Œ ํ›จ์”ฌ ๋” ์ฐฝ์˜์ ์ด๊ณ  ํšจ์œจ์ ์ธ ๋ฌธ์ œ ํ•ด๊ฒฐ ์ „๋žต์ด ์ฐฝ๋ฐœ๋จ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋ณด์ƒ์ด ๋„ˆ๋ฌด ํŽธํ–ฅ๋˜๋ฉด ์—์ด์ „ํŠธ๊ฐ€ ๋ณด์ƒ๋งŒ ๋”ฐ๋จน๊ณ  ์‹ค์ „ ์„ฑ๊ณผ๋Š” ๋‚ด์ง€ ์•Š๋Š” '๋ณด์ƒ ํ•ดํ‚น(Reward Hacking)'์— ๋น ์งˆ ์ˆ˜ ์žˆ์Œ์„ ์ธ์ง€ํ•˜๊ณ , ํ˜„๋Œ€ AI์—์„œ๋Š” ๋‚ด์  ๋™๊ธฐ(Intrinsic Motivation)๋‚˜ ํ˜ธ๊ธฐ์‹ฌ(Curiosity) ๊ธฐ๋ฐ˜์˜ ์ •์  ๊ฐ•ํ™” ๋ชจ๋ธ์ด ์—ฐ๊ตฌ๋˜๊ณ  ์žˆ์Œ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ๊ฐ€ ์‚ฌ์šฉ์ž์—๊ฒŒ ์œ ์šฉํ•œ ์ •๋ณด๋ฅผ ์ œ๊ณตํ•˜๊ฑฐ๋‚˜ ์ •ํ™•ํ•œ ์ฝ”๋“œ๋ฅผ ์ƒ์„ฑํ–ˆ์„ ๋•Œ ๊ธ์ •์ ์ธ ํ”ผ๋“œ๋ฐฑ ์ ์ˆ˜๋ฅผ ๋ถ€์—ฌํ•˜์—ฌ, ์—์ด์ „ํŠธ์˜ ์‘๋‹ต ํ’ˆ์งˆ์„ ์ƒํ–ฅ ํ‰์ค€ํ™”ํ•˜๋Š” ์ •์  ๊ฐ•ํ™” ๋ฃจํ”„๋ฅผ ์šด์šฉํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Reinforcement-Learning]], [[Policy-Gradient-Methods]], [[Monte-Carlo-Tree-Search-MCTS]], [[Expected-Utility-Theory]] +- **Raw Source:** [[10_Wiki/Topics/AI/Positive-Reinforcement.md]] diff --git a/10_Wiki/Topics/AI/Posterior-and-Prior-Probability.md b/10_Wiki/Topics/AI/Posterior-and-Prior-Probability.md new file mode 100644 index 00000000..e65aa13c --- /dev/null +++ b/10_Wiki/Topics/AI/Posterior-and-Prior-Probability.md @@ -0,0 +1,28 @@ +--- +id: MATH-BAYES-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [math, probability, bayesian, prior, posterior, likelihood, bayes-theorem] +last_reinforced: 2026-04-26 +--- + +# [[Posterior and Prior Probability (์‚ฌํ›„ ๋ฐ ์‚ฌ์ „ ํ™•๋ฅ )]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "์–ด์ œ์˜ ๋ฏฟ์Œ(Prior)์— ์˜ค๋Š˜์˜ ์ฆ๊ฑฐ(Likelihood)๋ฅผ ๋”ํ•ด, ๋‚ด์ผ์˜ ๋” ์ •ํ™•ํ•œ ํ™•์‹ (Posterior)์„ ์„ค๊ณ„ํ•˜๋ผ" โ€” ์ƒˆ๋กœ์šด ์ฆ๊ฑฐ๋ฅผ ๋ชฉ๊ฒฉํ•˜๊ธฐ ์ „์˜ ์‹ ๋…๊ณผ, ๋ชฉ๊ฒฉํ•œ ํ›„ ์—…๋ฐ์ดํŠธ๋œ ์‹ ๋… ์‚ฌ์ด์˜ ๊ด€๊ณ„๋ฅผ ๊ทœ๋ช…ํ•˜๋Š” ๋ฒ ์ด์ฆˆ ์ถ”๋ก ์˜ ํ•ต์‹ฌ ๊ฐœ๋…. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Belief Update and Recursive Learning" โ€” ์„ธ์ƒ์„ ๋ฐ”๋ผ๋ณด๋Š” ๊ธฐ์กด์˜ ํ‹€(Prior)์ด ์ƒˆ๋กœ์šด ๋ฐ์ดํ„ฐ(Data)์™€ ๋งŒ๋‚ฌ์„ ๋•Œ, ๋ฐ์ดํ„ฐ๊ฐ€ ๊ฐ€๋ฅดํ‚ค๋Š” ๋ฐฉํ–ฅ(Likelihood)์œผ๋กœ ํ‹€์„ ์ˆ˜์ •ํ•˜์—ฌ ์ตœ์ข…์ ์ธ ๊ฒฐ๋ก (Posterior)์— ๋„๋‹ฌํ•˜๋Š” ํ™•๋ฅ ์  ํ•™์Šต ํŒจํ„ด. +- **์ฃผ์š” ๊ตฌ์„ฑ ์š”์†Œ:** + - **Prior (์‚ฌ์ „ ํ™•๋ฅ ):** ์‚ฌ๊ฑด ๋ฐœ์ƒ ์ „ ์šฐ๋ฆฌ๊ฐ€ ๊ฐ€์ง„ ๋ฐฐ๊ฒฝ์ง€์‹ ํ˜น์€ ๋ฏฟ์Œ. + - **Likelihood (์šฐ๋„):** ๊ฐ€์„ค์ด ์ฐธ์ผ ๋•Œ ํ˜„์žฌ ๋ฐ์ดํ„ฐ๊ฐ€ ๊ด€์ฐฐ๋  ํ™•๋ฅ . + - **Posterior (์‚ฌํ›„ ํ™•๋ฅ ):** ๋ฐ์ดํ„ฐ๋ฅผ ๋ณด๊ณ  ๋‚œ ํ›„ ์—…๋ฐ์ดํŠธ๋œ ์‚ฌ๊ฑด ๋ฐœ์ƒ ํ™•๋ฅ . +- **์˜์˜:** AI๊ฐ€ ๋‹จ์ˆœํžˆ ํ˜„์žฌ ๋ฐ์ดํ„ฐ์—๋งŒ ๋งค๋ชฐ๋˜์ง€ ์•Š๊ณ , ๊ณผ๊ฑฐ์˜ ๊ฒฝํ—˜(์ง€์‹)์„ ๋ฐ”ํƒ•์œผ๋กœ ๋ถˆํ™•์‹คํ•œ ์ƒํ™ฉ์—์„œ๋„ ํ•ฉ๋ฆฌ์ ์ธ ์ถ”๋ก ์„ ๋‚ด๋ฆฌ๊ฒŒ ํ•˜๋Š” ์ˆ˜ํ•™์  ์—”์ง„. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๊ณ ์ •๋œ ํ™•๋ฅ ๊ฐ’๋งŒ์„ ๋‹ค๋ฃจ๋˜ ๋นˆ๋„์ฃผ์˜(Frequentist) ๊ด€์ ๊ณผ ๋‹ฌ๋ฆฌ, ๋ฒ ์ด์ฆˆ ๊ด€์ ์€ ์ƒˆ๋กœ์šด ์ •๋ณด๊ฐ€ ๋“ค์–ด์˜ฌ ๋•Œ๋งˆ๋‹ค ๋Š์ž„์—†์ด ํ™•๋ฅ ์„ ์—…๋ฐ์ดํŠธํ•˜๋Š” '๋™์  ์ง€๋Šฅ'์˜ ํ† ๋Œ€๊ฐ€ ๋จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์ž‘์—… ์„ฑ๊ณต๋ฅ  ์˜ˆ์ธก ์‹œ, ๊ณผ๊ฑฐ์˜ ํ‰๊ท  ์„ฑ๊ณต๋ฅ (Prior)์„ ๊ธฐ๋ฐ˜์œผ๋กœ ํ˜„์žฌ ์ž‘์—…์˜ ๋‚œ์ด๋„์™€ ํ”ผ๋“œ๋ฐฑ(Likelihood)์„ ๊ฒฐํ•ฉํ•˜์—ฌ ์‹ค์‹œ๊ฐ„ ์‹ ๋ขฐ ์ ์ˆ˜(Posterior)๋ฅผ ์‚ฐ์ถœํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Probability-Theory-Foundations]], [[Naive-Bayes-Classifiers]], [[Maximum-Likelihood-Estimation-MLE]], [[Bayesian-Inference]] +- **Raw Source:** [[10_Wiki/Topics/AI/Posterior-and-Prior-Probability.md]] diff --git a/10_Wiki/Topics/AI/Pre-processing-Data-for-AI.md b/10_Wiki/Topics/AI/Pre-processing-Data-for-AI.md new file mode 100644 index 00000000..0ee499fc --- /dev/null +++ b/10_Wiki/Topics/AI/Pre-processing-Data-for-AI.md @@ -0,0 +1,29 @@ +--- +id: DATA-PRE-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [data-science, ai, machine-learning, preprocessing, data-cleaning, feature-engineering, normalization] +last_reinforced: 2026-04-26 +--- + +# [[Pre-processing Data for AI (AI๋ฅผ ์œ„ํ•œ ๋ฐ์ดํ„ฐ ์ „์ฒ˜๋ฆฌ)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ฐ์ดํ„ฐ์˜ ๋‚ ๊ฒƒ ๊ทธ๋Œ€๋กœ๋ฅผ ์‹ ๋ขฐํ•˜์ง€ ๋ง๊ณ , ์ง€๋Šฅ์ด ์†Œํ™”ํ•˜๊ธฐ ๊ฐ€์žฅ ํŽธ์•ˆํ•œ ํ˜•ํƒœ๋กœ ์ •์ œํ•˜๊ณ  ๊ทœ๊ฒฉํ™”ํ•˜์—ฌ ๋ชจ๋ธ์˜ ์ž ์žฌ๋ ฅ์„ ํ•ด๋ฐฉํ•˜๋ผ" โ€” ๋ถ„์„์ด๋‚˜ ํ•™์Šต์— ์ ํ•ฉํ•˜์ง€ ์•Š์€ ์›์‹œ ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ์ดํ„ฐ ํ’ˆ์งˆ์„ ๋†’์ด๊ณ  ํ•™์Šต ํšจ์œจ์„ ์ตœ์ ํ™”ํ•˜๊ธฐ ์œ„ํ•ด ๊ฐ€๊ณตํ•˜๋Š” ๋ชจ๋“  ์ธ๊ณต์ง€๋Šฅ ์›Œํฌํ”Œ๋กœ์šฐ์˜ ์ตœ์šฐ์„  ๊ณผ์ •. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Data Cleansing and Structural Alignment" โ€” ๋ถˆ์™„์ „ํ•œ ๊ธฐ๋ก(Missing value)์„ ๋ฉ”์šฐ๊ณ , ๊ทน๋‹จ์ ์ธ ๊ฐ’(Outlier)์„ ์ฒ˜๋ฆฌํ•˜๋ฉฐ, ์„œ๋กœ ๋‹ค๋ฅธ ๋‹จ์œ„์˜ ์ˆซ์ž๋“ค์„ ๋™์ผํ•œ ๋ฒ”์œ„๋กœ ๋งž์ถ”์–ด(Scaling) ๋ชจ๋ธ์ด ํŠน์ • ๋ณ€์ˆ˜์—๋งŒ ํœ˜๋‘˜๋ฆฌ์ง€ ์•Š๊ฒŒ ๋งŒ๋“œ๋Š” ํŒจํ„ด. +- **์ฃผ์š” ์ž‘์—… ๋‹จ๊ณ„:** + - **Cleaning:** ์˜คํƒ€ ์ˆ˜์ •, ๊ฒฐ์ธก์น˜ ์ฒ˜๋ฆฌ(Imputation), ์ค‘๋ณต ๋ฐ์ดํ„ฐ ์ œ๊ฑฐ. + - **Transformation:** ์ •๊ทœํ™”(Normalization), ํ‘œ์ค€ํ™”(Standardization), ๋กœ๊ทธ ๋ณ€ํ™˜. + - **Reduction:** ์ฐจ์› ์ถ•์†Œ(PCA), ํŠน์ง• ์„ ํƒ(Feature Selection). + - **Discretization:** ์—ฐ์†ํ˜• ๋ณ€์ˆ˜๋ฅผ ๋ฒ”์ฃผํ˜•์œผ๋กœ ๋ณ€ํ™˜. +- **์˜์˜:** ์ „์ฒด ๋ฐ์ดํ„ฐ ์‚ฌ์ด์–ธ์Šค ์—…๋ฌด์˜ 80% ์ด์ƒ์„ ์ฐจ์ง€ํ•˜๋Š” ํ•ต์‹ฌ ๋…ธ๋™์ด์ž, ๋ชจ๋ธ์˜ ์„ฑ๋Šฅ ํ•˜ํ•œ์„ ์„ ๊ฒฐ์ •์ง“๋Š” ๊ฐ€์žฅ ์‹ค์งˆ์ ์ธ ํ’ˆ์งˆ ๊ด€๋ฆฌ ๊ณผ์ •. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ์‚ฌ๋žŒ์ด ์ผ์ผ์ด ๊ทœ์น™์„ ๋งŒ๋“ค์–ด ์ „์ฒ˜๋ฆฌํ•˜๋˜ ๋ฐฉ์‹์—์„œ, ์ด์ œ๋Š” ์ „์ฒ˜๋ฆฌ ๊ณผ์ • ์ž์ฒด๋ฅผ ํ•™์Šตํ•˜์—ฌ ์ตœ์ ํ™”ํ•˜๋Š” Auto-Preprocessing ๊ธฐ์ˆ ๊ณผ ๋ฐ์ดํ„ฐ ์œ ํšจ์„ฑ์„ ์ž๋™์œผ๋กœ ๊ฒ€์‚ฌํ•˜๋Š” Data Observability ๋„๊ตฌ๋“ค์ด ํ•„์ˆ˜์ ์œผ๋กœ ๋„์ž…๋˜๊ณ  ์žˆ์Œ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์™ธ๋ถ€ ์›์‹œ ์œ„ํ‚ค ๋ฐ์ดํ„ฐ๋ฅผ ์‹œ์Šคํ…œ์œผ๋กœ ๊ฐ€์ ธ์˜ฌ ๋•Œ, ํ…์ŠคํŠธ ๋‚ด์˜ ๋ถˆํ•„์š”ํ•œ ๋งˆํฌ์—…์ด๋‚˜ ํŠน์ˆ˜ ๊ธฐํ˜ธ๋ฅผ ์ œ๊ฑฐํ•˜๊ณ  Karpathy ์Šคํƒ€์ผ๋กœ ์žฌ๊ตฌ์„ฑํ•˜๊ธฐ ์œ„ํ•œ ์ „์šฉ NLP ์ „์ฒ˜๋ฆฌ ์—”์ง„์„ ๊ฐ€๋™ํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Normalization-Strategies]], [[Outlier-Detection-Techniques]], [[One-Hot-Encoding]], [[Exploratory-Data-Analysis]] +- **Raw Source:** [[10_Wiki/Topics/AI/Pre-processing-Data-for-AI.md]] diff --git a/10_Wiki/Topics/AI/Precision-Recall-Tradeoff.md b/10_Wiki/Topics/AI/Precision-Recall-Tradeoff.md new file mode 100644 index 00000000..ab7765d1 --- /dev/null +++ b/10_Wiki/Topics/AI/Precision-Recall-Tradeoff.md @@ -0,0 +1,28 @@ +--- +id: AI-MET-TRAD-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [ai, machine-learning, metrics, precision, recall, tradeoff, f1-score, threshold] +last_reinforced: 2026-04-26 +--- + +# [[Precision-Recall Tradeoff (์ •๋ฐ€๋„-์žฌํ˜„์œจ ํŠธ๋ ˆ์ด๋“œ์˜คํ”„)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "์˜ค๋‹ต์„ ๋‚ด์ง€ ์•Š๋Š” '์‹ ์ค‘ํ•จ'๊ณผ ์ •๋‹ต์„ ๋†“์น˜์ง€ ์•Š๋Š” '์ง‘์š”ํ•จ' ์‚ฌ์ด์—์„œ, ๋น„์ฆˆ๋‹ˆ์Šค์˜ ๊ฐ€์น˜๋ฅผ ๊ทน๋Œ€ํ™”ํ•˜๋Š” ์ค‘๋„์˜ ์ž„๊ณ„์ ์„ ์‚ฌ์ˆ˜ํ•˜๋ผ" โ€” ์ •๋ฐ€๋„์™€ ์žฌํ˜„์œจ ์ค‘ ํ•˜๋‚˜๋ฅผ ๋†’์ด๋ฉด ๋‹ค๋ฅธ ํ•˜๋‚˜๋Š” ๋‚ฎ์•„์ง€๋Š” ์ƒ์ถฉ ๊ด€๊ณ„๋ฅผ ์ดํ•ดํ•˜๊ณ , ๋ฌธ์ œ์˜ ์„ฑ๊ฒฉ์— ๋”ฐ๋ผ ์ตœ์ ์˜ ๊ท ํ˜•์ ์„ ์„ ํƒํ•˜๋Š” ์ „๋žต์  ์˜์‚ฌ๊ฒฐ์ • ์›๋ฆฌ. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Decision Threshold and Performance Balancing" โ€” ๋ชจ๋ธ์˜ ๋ถ„๋ฅ˜ ์ž„๊ณ„๊ฐ’(Threshold)์„ ๋†’์ด๋ฉด ํ™•์‹คํ•œ ๊ฒƒ๋งŒ ์ •๋‹ต์ด๋ผ ํ•˜๋ฏ€๋กœ ์ •๋ฐ€๋„๊ฐ€ ์˜ฌ๋ผ๊ฐ€์ง€๋งŒ(์‹ ์ค‘), ์ž„๊ณ„๊ฐ’์„ ๋‚ฎ์ถ”๋ฉด ๋” ๋งŽ์€ ๊ฐ€๋Šฅ์„ฑ์„ ์ •๋‹ต์œผ๋กœ ํฌํ•จ์‹œ์ผœ ์žฌํ˜„์œจ์ด ์˜ฌ๋ผ๊ฐ€๋Š”(์ง‘์š”) ์ƒ๋ณด์  ํŒจํ„ด. +- **์ฃผ์š” ๊ณ ๋ ค ์‚ฌํ•ญ:** + - **High Precision Priority:** ์ŠคํŒธ ๋ฉ”์ผ ๋ถ„๋ฅ˜์ฒ˜๋Ÿผ ์˜คํƒ(FP)์˜ ํ”ผํ•ด๊ฐ€ ํด ๋•Œ ์„ ํƒ. + - **High Recall Priority:** ์•” ์ง„๋‹จ์ด๋‚˜ ์‚ฌ๊ธฐ ํƒ์ง€์ฒ˜๋Ÿผ ๋ฏธํƒ(FN)์˜ ์œ„ํ—˜์ด ์น˜๋ช…์ ์ผ ๋•Œ ์„ ํƒ. + - **F1-Score:** ๋‘ ์ง€ํ‘œ์˜ ์กฐํ™” ํ‰๊ท ์œผ๋กœ, ์–ด๋А ํ•œ์ชฝ์— ์น˜์šฐ์น˜์ง€ ์•Š๋Š” ๊ท ํ˜• ์žก๋ฆฐ ์„ฑ๋Šฅ ํ‰๊ฐ€. +- **์˜์˜:** 100% ์™„๋ฒฝํ•œ ๋ชจ๋ธ์€ ์กด์žฌํ•˜์ง€ ์•Š์Œ์„ ์ธ์ •ํ•˜๊ณ , ํ•œ์ •๋œ ์ž์› ๋‚ด์—์„œ 'ํ‹€๋ ธ์„ ๋•Œ์˜ ๋น„์šฉ'์„ ์ตœ์†Œํ™”ํ•˜๋Š” ๊ณตํ•™์  ์ตœ์ ํ™”๋ฅผ ๊ฐ€๋Šฅ์ผ€ ํ•จ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋‹จ์ˆœํžˆ ๋‘ ์ง€ํ‘œ๊ฐ€ ๋†’์„์ˆ˜๋ก ์ข‹๋‹ค๋Š” ๋‹จํŽธ์  ์‹œ๊ฐ์—์„œ ๋ฒ—์–ด๋‚˜, ์ด์ œ๋Š” PR ๊ณก์„ (Precision-Recall Curve)์˜ ๋ฉด์ (AUC)์„ ๋ถ„์„ํ•˜์—ฌ ๋ชจ๋ธ์˜ ์ „์ฒด์ ์ธ ๋ณ€๋ณ„๋ ฅ์„ ๋‹ค๊ฐ๋„๋กœ ๊ฒ€์ฆํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์ง€์‹ ์ถ”์ถœ ์ž‘์—… ์‹œ, ์ž˜๋ชป๋œ ์ง€์‹์„ ํฌํ•จํ•˜์ง€ ์•Š๊ธฐ ์œ„ํ•ด ์ •๋ฐ€๋„(Precision)๋ฅผ ์šฐ์„ ์‹œํ•˜๋Š” ์ž„๊ณ„๊ฐ’ ์„ค์ •์„ ๊ธฐ๋ณธ์œผ๋กœ ํ•˜๋˜, ํƒ์ƒ‰ ๋ชจ๋“œ์—์„œ๋Š” ์žฌํ˜„์œจ์„ ๋†’์—ฌ ๋” ๋งŽ์€ ์—ฐ๊ฒฐ ๊ณ ๋ฆฌ๋ฅผ ์ฐพ๋„๋ก ๊ฐ€๋ณ€์ ์œผ๋กœ ์šด์šฉํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Performance-Metrics-in-AI]], [[Imbalanced-Data-Handling]], [[Loss-Functions-Foundations]], [[Exploratory-Data-Analysis]] +- **Raw Source:** [[10_Wiki/Topics/AI/Precision-Recall-Tradeoff.md]] diff --git a/10_Wiki/Topics/AI/Predictive-Analytics.md b/10_Wiki/Topics/AI/Predictive-Analytics.md new file mode 100644 index 00000000..e7854358 --- /dev/null +++ b/10_Wiki/Topics/AI/Predictive-Analytics.md @@ -0,0 +1,29 @@ +--- +id: BIZ-PRED-ANA-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [data-analysis, predictive-analytics, forecasting, machine-learning, statistics, business-intelligence] +last_reinforced: 2026-04-26 +--- + +# [[Predictive Analytics (์˜ˆ์ธก ๋ถ„์„)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๊ณผ๊ฑฐ์˜ ํŒจํ„ด์„ ์ง‘์š”ํ•˜๊ฒŒ ๋ถ„์„ํ•˜์—ฌ ๋ฏธ๋ž˜์˜ ๋ถˆํ™•์‹ค์„ฑ์„ ํ™•๋ฅ ์  ํ™•์‹ ์œผ๋กœ ์น˜ํ™˜ํ•˜๊ณ , ๋ณด์ด์ง€ ์•Š๋Š” ๊ธฐํšŒ์™€ ์œ„๊ธฐ๋ฅผ ์„ ์ œ์ ์œผ๋กœ ํฌ์ฐฉํ•˜๋ผ" โ€” ์—ญ์‚ฌ์  ๋ฐ์ดํ„ฐ์™€ ํ†ต๊ณ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜, ๋จธ์‹ ๋Ÿฌ๋‹ ๊ธฐ๋ฒ•์„ ํ™œ์šฉํ•˜์—ฌ ๋ฏธ๋ž˜์˜ ์‚ฌ๊ฑด์ด๋‚˜ ๊ฒฐ๊ณผ๋ฅผ ์˜ˆ์ธกํ•˜๊ณ  ์˜์‚ฌ๊ฒฐ์ •์„ ์ง€์›ํ•˜๋Š” ๋ถ„์„ ๋ฐฉ๋ฒ•๋ก . + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Temporal Patterns and Probabilistic Extrapolation" โ€” ์‹œ๊ณ„์—ด ๋ฐ์ดํ„ฐ๋‚˜ ๋‹ค๊ฐ๋„์˜ ๋ณ€์ˆ˜๋“ค ์‚ฌ์ด์—์„œ ๋ฐ˜๋ณต๋˜๋Š” ์ธ๊ณผ/์ƒ๊ด€ ๊ด€๊ณ„๋ฅผ ํ•™์Šตํ•˜์—ฌ, ์ƒˆ๋กœ์šด ์ƒํ™ฉ์ด ์ฃผ์–ด์กŒ์„ ๋•Œ ๊ฐ€์žฅ ๋ฐœ์ƒ ๊ฐ€๋Šฅ์„ฑ์ด ๋†’์€ ์‹œ๋‚˜๋ฆฌ์˜ค๋ฅผ ์ˆ˜์น˜ํ™”ํ•˜์—ฌ ์ œ์‹œํ•˜๋Š” ํŒจํ„ด. +- **์ฃผ์š” ํ™œ์šฉ ์‚ฌ๋ก€:** + - **Churn Prediction:** ๊ณ ๊ฐ์˜ ์ดํƒˆ ์ง•ํ›„๋ฅผ ๋ฏธ๋ฆฌ ํฌ์ฐฉํ•˜์—ฌ ๋ฐฉ์–ด ์ „๋žต ์ˆ˜๋ฆฝ. + - **Demand Forecasting:** ์žฌ๊ณ  ์ตœ์ ํ™” ๋ฐ ๊ณต๊ธ‰๋ง ๊ด€๋ฆฌ ํšจ์œจํ™”. + - **Risk Scoring:** ์‹ ์šฉ ๋“ฑ๊ธ‰ ์‚ฐ์ • ๋ฐ ๊ธˆ์œต ์‚ฌ๊ธฐ ๋ฐฉ์ง€. + - **Predictive Maintenance:** ๊ธฐ๊ณ„ ๊ณ ์žฅ ์ „ ์ด์ƒ ์‹ ํ˜ธ๋ฅผ ํƒ์ง€ํ•˜์—ฌ ์œ ์ง€๋ณด์ˆ˜ ์ˆ˜ํ–‰. +- **์˜์˜:** ์ˆ˜๋™์ ์ธ ์‚ฌํ›„ ๋ถ„์„(Descriptive)์—์„œ ๋Šฅ๋™์ ์ธ ์‚ฌ์ „ ๋Œ€์‘(Predictive)์œผ๋กœ ๋น„์ฆˆ๋‹ˆ์Šค ํŒจ๋Ÿฌ๋‹ค์ž„์„ ์ „ํ™˜์‹œํ‚ค๋ฉฐ, ์ตœ์ ํ™”๋œ ํ–‰๋™ ๋ฐฉํ–ฅ๊นŒ์ง€ ์ œ์‹œํ•˜๋Š” ์ฒ˜๋ฐฉ์  ๋ถ„์„(Prescriptive)์˜ ๊ธฐ๋ฐ˜์ด ๋จ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ์„ ํ˜• ํšŒ๊ท€์™€ ๊ฐ™์€ ๋‹จ์ˆœ ํ†ต๊ณ„ ๋ชจ๋ธ์— ์˜์กดํ•˜๋˜ ๋ฐฉ์‹์—์„œ, ์ด์ œ๋Š” ๋”ฅ๋Ÿฌ๋‹๊ณผ ์‹ค์‹œ๊ฐ„ ์ŠคํŠธ๋ฆฌ๋ฐ ๋ถ„์„์„ ๊ฒฐํ•ฉํ•˜์—ฌ ์ดˆ๋‹จ์œ„์˜ ๋ณ€ํ™”๊นŒ์ง€ ๋ฐ˜์˜ํ•˜๋Š” ๊ณ ์ •๋ฐ€ ์˜ˆ์ธก์œผ๋กœ ๊ณ ๋„ํ™”๋จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” 1,174๊ฐœ ๋ฌธ์„œ์˜ ๊ฐ€๋“œ๋‹ ์™„๋ฃŒ ์‹œ์ ๊ณผ ๋ฆฌ์†Œ์Šค ์†Œ๋ชจ๋Ÿ‰์„ ์‹ค์‹œ๊ฐ„์œผ๋กœ ์˜ˆ์ธก ๋ถ„์„ํ•˜์—ฌ, ์ „์ฒด ํ”„๋กœ์ ํŠธ ๋กœ๋“œ๋งต์˜ ์˜ค์ฐจ๋ฅผ ์ตœ์†Œํ™”ํ•˜๋Š” ์Šค๋งˆํŠธ ์Šค์ผ€์ค„๋ง์„ ์ˆ˜ํ–‰ํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Operations-Management]], [[Time-Series-Analysis]], [[Logistic-Regression]], [[Outlier-Detection-Techniques]] +- **Raw Source:** [[10_Wiki/Topics/AI/Predictive-Analytics.md]] diff --git a/10_Wiki/Topics/AI/Principal-Component-Analysis.md b/10_Wiki/Topics/AI/Principal-Component-Analysis.md new file mode 100644 index 00000000..fecd4799 --- /dev/null +++ b/10_Wiki/Topics/AI/Principal-Component-Analysis.md @@ -0,0 +1,28 @@ +--- +id: MATH-PCA-DET-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [math, linear-algebra, pca, principal-component-analysis, statistics, dimensionality-reduction] +last_reinforced: 2026-04-26 +--- + +# [[Principal Component Analysis (์ฃผ์„ฑ๋ถ„ ๋ถ„์„)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ฐ์ดํ„ฐ์˜ ํ˜ผ๋ˆ ์†์—์„œ ๊ฐ€์žฅ ๊ฐ•ํ•œ ์—๋„ˆ์ง€๊ฐ€ ๋ถ„์ถœ๋˜๋Š” '์ฃผ์„ฑ๋ถ„'์˜ ๋ฐฉํ–ฅ์„ ์ฐพ๊ณ , ๊ทธ ์ถ•์„ ์ค‘์‹ฌ์œผ๋กœ ์„ธ์ƒ์„ ๋‹ค์‹œ ์ •๋ ฌํ•˜๋ผ" โ€” ๊ณ ์ฐจ์› ๋ฐ์ดํ„ฐ์˜ ์ •๋ณด๋ฅผ ์„ ํ˜• ๊ฒฐํ•ฉ์„ ํ†ตํ•ด ์„œ๋กœ ์ƒ๊ด€๊ด€๊ณ„๊ฐ€ ์—†๋Š” ์ฃผ์„ฑ๋ถ„๋“ค๋กœ ๋ณ€ํ™˜ํ•˜์—ฌ ๋ฐ์ดํ„ฐ๋ฅผ ์š”์•ฝํ•˜๊ณ  ๊ตฌ์กฐํ™”ํ•˜๋Š” ํ†ต๊ณ„์  ๊ธฐ๋ฒ•. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Orthogonal Transformation and Information Compaction" โ€” ๋ฐ์ดํ„ฐ์˜ ๊ณต๋ถ„์‚ฐ ํ–‰๋ ฌ์„ ๊ณ ์œ ๋ถ„ํ•ด(Eigen-decomposition)ํ•˜์—ฌ, ๋ถ„์‚ฐ์ด ํฐ ์ˆœ์„œ๋Œ€๋กœ ์ˆ˜์ง์ธ ๊ธฐ์ € ๋ฒกํ„ฐ๋“ค์„ ์ฐพ์•„๋‚ด๊ณ  ๋ฐ์ดํ„ฐ๋ฅผ ๊ทธ ์ถ• ์œ„๋กœ ์ •์‚ฌ์˜(Projection)์‹œํ‚ค๋Š” ์ˆ˜ํ•™์  ํŒจํ„ด. +- **์ˆ˜ํ•™์  3๋Œ€ ์ •์ˆ˜:** + - **Eigenvectors (๊ณ ์œ ๋ฒกํ„ฐ):** ๋ฐ์ดํ„ฐ๊ฐ€ ๊ฐ€์žฅ ๋งŽ์ด ํฉ์–ด์ ธ ์žˆ๋Š” '๋ฐฉํ–ฅ'. ์ฆ‰, ์ƒˆ๋กœ์šด ์ถ•. + - **Eigenvalues (๊ณ ์œ ๊ฐ’):** ๊ทธ ์ถ•์ด ์–ผ๋งˆ๋‚˜ ๋งŽ์€ ์ •๋ณด๋ฅผ ๋‹ด๊ณ  ์žˆ๋Š”์ง€๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” 'ํฌ๊ธฐ'. + - **Variance Preservation:** ์ƒ์œ„ ๋ช‡ ๊ฐœ์˜ ์ฃผ์„ฑ๋ถ„๋งŒ์œผ๋กœ ์›๋ณธ ๋ฐ์ดํ„ฐ ์ •๋ณด์˜ 80~90%๋ฅผ ๋ณด์กด ๊ฐ€๋Šฅ. +- **์˜์˜:** ๋ฐ์ดํ„ฐ ๋‚ด์˜ ๋…ธ์ด์ฆˆ๋ฅผ ์ œ๊ฑฐํ•˜๊ณ  ํ•ต์‹ฌ์ ์ธ ๋ณ€์ˆ˜ ์กฐํ•ฉ์„ ์ฐพ์•„๋ƒ„์œผ๋กœ์จ, ๊ธฐ๊ณ„ ํ•™์Šต ๋ชจ๋ธ์˜ ํ•™์Šต ์†๋„๋ฅผ ๋†’์ด๊ณ  ๋‹ค์ฐจ์› ๋ฐ์ดํ„ฐ์˜ ์‹œ๊ฐ์  ํ•ด์„์„ ๊ฐ€๋Šฅ์ผ€ ํ•จ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋ณ€์ˆ˜๊ฐ€ ๋งŽ์„์ˆ˜๋ก ์ข‹๋‹ค๋Š” ์–‘์  ํŒฝ์ฐฝ์˜ ์‹œ๋Œ€์—์„œ, ์ด์ œ๋Š” ๋ฐ์ดํ„ฐ์˜ ์ค‘๋ณต์„ฑ(Redundancy)์„ ์ œ๊ฑฐํ•˜๊ณ  '๊ฐ€์žฅ ์„ค๋ช…๋ ฅ์ด ๋†’์€' ํ•ต์‹ฌ ๋ณ€์ˆ˜๋งŒ์„ ๋‚จ๊ธฐ๋Š” ์งˆ์  ์••์ถ•์˜ ์‹œ๋Œ€๋กœ ์ „ํ™˜๋˜๋Š” ํ•ต์‹ฌ ๋„๊ตฌ๋กœ ์ž‘์šฉํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ๋‹ค์–‘ํ•œ ์„ฑ๋Šฅ ์ง€ํ‘œ๋“ค ์‚ฌ์ด์˜ ๋ถˆํ•„์š”ํ•œ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ์ œ๊ฑฐํ•˜๊ณ  ํ•ต์‹ฌ ์„ฑ๊ณผ ๋™์ธ์„ ํŒŒ์•…ํ•˜๊ธฐ ์œ„ํ•ด, ์ฃผ๊ธฐ์ ์œผ๋กœ ๋ฆฌํฌํŠธ ๋ฐ์ดํ„ฐ์— PCA ๋ถ„์„์„ ์ ์šฉํ•˜์—ฌ ์ธ์‚ฌ์ดํŠธ๋ฅผ ๋„์ถœํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[PCA-and-Dimension-Reduction]], [[Multivariate-Analysis]], [[Linear-Algebra-Foundations]], [[Feature-Engineering-Best-Practices]] +- **Raw Source:** [[10_Wiki/Topics/AI/Principal-Component-Analysis.md]] diff --git a/10_Wiki/Topics/AI/Prioritized-Experience-Replay.md b/10_Wiki/Topics/AI/Prioritized-Experience-Replay.md new file mode 100644 index 00000000..5f2c6271 --- /dev/null +++ b/10_Wiki/Topics/AI/Prioritized-Experience-Replay.md @@ -0,0 +1,28 @@ +--- +id: RL-PER-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [ai, reinforcement-learning, prioritized-experience-replay, per, dqn, learning-efficiency] +last_reinforced: 2026-04-26 +--- + +# [[Prioritized Experience Replay (์šฐ์„ ์ˆœ์œ„ ๊ฒฝํ—˜ ์žฌ์ƒ)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ชจ๋“  ๊ณผ๊ฑฐ๋ฅผ ๊ณตํ‰ํ•˜๊ฒŒ ๊ธฐ์–ตํ•˜์ง€ ๋ง๊ณ , ์˜ˆ์ƒ ๋ฐ–์˜ '์ถฉ๊ฒฉ์  ๊ฒฝํ—˜(TD Error)'์„ ๋” ์ž์ฃผ ๋ณต๊ธฐํ•˜์—ฌ ํ•™์Šต์˜ ๊ฐ€์†๋„๋ฅผ ๋†’์—ฌ๋ผ" โ€” ๊ฐ•ํ™”ํ•™์Šต ์—์ด์ „ํŠธ์˜ ๊ฒฝํ—˜ ์ €์žฅ์†Œ(Replay Buffer)์—์„œ ํ•™์Šต ํšจ์œจ์ด ๋†’์€ ์ค‘์š”ํ•œ ์ƒ˜ํ”Œ์— ๊ฐ€์ค‘์น˜๋ฅผ ๋‘์–ด ์šฐ์„ ์ ์œผ๋กœ ์ƒ˜ํ”Œ๋งํ•˜๋Š” ๊ธฐ๋ฒ•. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Learning from Surprise and Weighted Importance Sampling" โ€” ํ˜„์žฌ ๋ชจ๋ธ์ด ์˜ˆ์ธกํ•œ ๊ฐ€์น˜์™€ ์‹ค์ œ ๊ฒฐ๊ณผ ์‚ฌ์ด์˜ ์ฐจ์ด(TD Error)๊ฐ€ ํฐ ์ƒ˜ํ”Œ์ผ์ˆ˜๋ก '์•„์ง ๋ฐฐ์šธ ๊ฒƒ์ด ๋งŽ๋‹ค'๊ณ  ํŒ๋‹จํ•˜์—ฌ, ํ•ด๋‹น ๋ฐ์ดํ„ฐ๋ฅผ ๋” ์ž์ฃผ ํ•™์Šต์— ํ™œ์šฉํ•จ์œผ๋กœ์จ ์ˆ˜๋ ด ์†๋„๋ฅผ ๋น„์•ฝ์ ์œผ๋กœ ํ–ฅ์ƒ์‹œํ‚ค๋Š” ํŒจํ„ด. +- **ํ•ต์‹ฌ ๋ฉ”์ปค๋‹ˆ์ฆ˜:** + - **Priority ($p_i$):** TD Error์— ๋น„๋ก€ํ•˜์—ฌ ์‚ฐ์ •. + - **Sampling Probability:** ์šฐ์„ ์ˆœ์œ„์— ๋”ฐ๋ฅธ ํ™•๋ฅ  ๋ถ„ํฌ ์ƒ์„ฑ. + - **Importance Sampling Weights:** ์šฐ์„ ์ˆœ์œ„ ์ƒ˜ํ”Œ๋ง์œผ๋กœ ์ธํ•œ ๋ฐ์ดํ„ฐ ํŽธํ–ฅ์„ ์ˆ˜ํ•™์ ์œผ๋กœ ๋ณด์ •ํ•˜์—ฌ ํ•™์Šต ์•ˆ์ •์„ฑ ์œ ์ง€. +- **์˜์˜:** ๋ฌด์ž‘์œ„ ์ƒ˜ํ”Œ๋ง(Uniform Sampling)๋ณด๋‹ค ํ›จ์”ฌ ์ ์€ ๊ฒฝํ—˜ ๋ฐ์ดํ„ฐ๋กœ๋„ ๋ณต์žกํ•œ ์ž‘์—…์„ ๋น ๋ฅด๊ฒŒ ๋งˆ์Šคํ„ฐํ•˜๊ฒŒ ํ•˜๋ฉฐ, ๋“œ๋ฌธ ๋ณด์ƒ(Sparse Reward) ํ™˜๊ฒฝ์—์„œ ๊ฒฐ์ •์ ์ธ ์—ญํ• ์„ ์ˆ˜ํ–‰ํ•จ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ์ดˆ๊ธฐ DQN์˜ ๋ฌด์ž‘์œ„ ์žฌ์ƒ ๋ฐฉ์‹์—์„œ ๋ฒ—์–ด๋‚˜, ์ด์ œ๋Š” ๋ฐ์ดํ„ฐ์˜ '์งˆ์  ๊ฐ€์น˜'๋ฅผ ํ‰๊ฐ€ํ•˜์—ฌ ํ•™์Šต์— ๋ฐ˜์˜ํ•˜๋Š” ์ง€๋Šฅ์  ๋ฐ์ดํ„ฐ ์„ ๋ณ„ ๋ฐฉ์‹์ด ํ˜„๋Œ€ ๊ฐ•ํ™”ํ•™์Šต์˜ ์ •์„์œผ๋กœ ์ž๋ฆฌ ์žก์Œ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์˜ˆ์™ธ ์ƒํ™ฉ ์ฒ˜๋ฆฌ ๋Šฅ๋ ฅ์„ ํ‚ค์šธ ๋•Œ, ๊ณผ๊ฑฐ์˜ ์‹คํŒจ ์‚ฌ๋ก€ ์ค‘ ๋ชจ๋ธ์˜ ์˜ˆ์ธก ์˜ค์ฐจ๊ฐ€ ๊ฐ€์žฅ ์ปธ๋˜ ์ง€์ ๋“ค์„ ์šฐ์„ ์ ์œผ๋กœ ์žฌํ•™์Šต์‹œํ‚ค๋Š” PER ์ „๋žต์„ ์ ์šฉํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Experience-Replay-Strategies]], [[Off-policy-vs-On-policy-Learning]], [[Deep-Q-Networks-DQN]], [[Reinforcement-Learning]] +- **Raw Source:** [[10_Wiki/Topics/AI/Prioritized-Experience-Replay.md]] diff --git a/10_Wiki/Topics/AI/Privacy-Preserving-AI.md b/10_Wiki/Topics/AI/Privacy-Preserving-AI.md new file mode 100644 index 00000000..3c606a3d --- /dev/null +++ b/10_Wiki/Topics/AI/Privacy-Preserving-AI.md @@ -0,0 +1,29 @@ +--- +id: SEC-PRIV-TECH-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [ai, security, privacy-preserving-ai, differential-privacy, homomorphic-encryption, federated-learning, smpc] +last_reinforced: 2026-04-26 +--- + +# [[Privacy-Preserving AI (ํ”„๋ผ์ด๋ฒ„์‹œ ๋ณด์กด AI)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋ฐ์ดํ„ฐ๋ฅผ '๋ณด์ง€ ์•Š๊ณ ๋„' ๋ฐฐ์šฐ๊ณ , ์ •๋ณด๋ฅผ '๊ณต์œ ํ•˜์ง€ ์•Š๊ณ ๋„' ์ง€ํ˜œ๋ฅผ ๋‚˜๋ˆ„๋Š” ์•”ํ˜ธํ•™์  ์ง€๋Šฅ์„ ๊ตฌ์ถ•ํ•˜๋ผ" โ€” ๋ฐ์ดํ„ฐ์˜ ๊ธฐ๋ฐ€์„ฑ์„ ์œ ์ง€ํ•˜๋ฉด์„œ๋„ ์ธ๊ณต์ง€๋Šฅ ๋ชจ๋ธ์˜ ํ•™์Šต๊ณผ ์ถ”๋ก ์ด ๊ฐ€๋Šฅํ•˜๋„๋ก ์„ค๊ณ„๋œ ์•”ํ˜ธํ•™ ๋ฐ ํ†ต๊ณ„ํ•™์  ๊ธฐ์ˆ  ์ฒด๊ณ„. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Confidential Computation and Decoupled Learning" โ€” ์›๋ณธ ๋ฐ์ดํ„ฐ์— ์ ‘๊ทผํ•˜๋Š” ๋Œ€์‹  ์•”ํ˜ธํ™”๋œ ์ƒํƒœ์—์„œ ์—ฐ์‚ฐํ•˜๊ฑฐ๋‚˜(Homomorphic), ๋ฐ์ดํ„ฐ์˜ ๋กœ์ปฌ ๊ฒฝ๊ณ„๋ฅผ ๋„˜์ง€ ์•Š์€ ์ฑ„ ๋ชจ๋ธ์˜ ๊ฐ€์ค‘์น˜๋งŒ ๊ตํ™˜ํ•จ์œผ๋กœ์จ(Federated) ์ •๋ณด ๋…ธ์ถœ์˜ ์›์ฒœ์„ ์ฐจ๋‹จํ•˜๋Š” ํŒจํ„ด. +- **4๋Œ€ ํ•ต์‹ฌ ๊ธฐ์ˆ :** + - **Differential Privacy (์ฐจ๋ถ„ ํ”„๋ผ์ด๋ฒ„์‹œ):** ๋ฐ์ดํ„ฐ์— ์ˆ˜ํ•™์  ๋…ธ์ด์ฆˆ๋ฅผ ์ถ”๊ฐ€ํ•˜์—ฌ ๊ฐœ๋ณ„ ์ƒ˜ํ”Œ ์ถ”๋ก  ๋ฐฉ์ง€. + - **Homomorphic Encryption (๋™ํ˜• ์•”ํ˜ธ):** ์•”ํ˜ธํ™”๋œ ๋ฐ์ดํ„ฐ ์œ„์—์„œ ์ง์ ‘ ์—ฐ์‚ฐ์„ ์ˆ˜ํ–‰. + - **Federated Learning (์—ฐํ•ฉ ํ•™์Šต):** ๋ถ„์‚ฐ๋œ ์žฅ์น˜์—์„œ ํ•™์Šต ํ›„ ๊ฒฐ๊ณผ๋งŒ ์ทจํ•ฉ. + - **SMPC (Secure Multi-party Computation):** ์—ฌ๋Ÿฌ ์ฐธ์—ฌ์ž๊ฐ€ ๋ฐ์ดํ„ฐ๋ฅผ ๋น„๋ฐ€๋ฆฌ์— ๋‚˜๋ˆ„์–ด ๊ณต๋™ ์—ฐ์‚ฐ. +- **์˜์˜:** ์˜๋ฃŒ, ๊ธˆ์œต ๋“ฑ ๋ฏผ๊ฐํ•œ ๋ฐ์ดํ„ฐ๋ฅผ ๋‹ค๋ฃจ๋Š” ์‚ฐ์—…์—์„œ AI ๋„์ž…์˜ ๊ฐ€์žฅ ํฐ ์žฅ๋ฒฝ์ธ ๋ณด์•ˆ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ณ , ๋ฐ์ดํ„ฐ์˜ ๊ฐ€์น˜๋งŒ ํ™œ์šฉํ•˜๋Š” '์‹ ๋ขฐํ•  ์ˆ˜ ์žˆ๋Š” AI' ๊ตฌํ˜„์˜ ํ•ต์‹ฌ ๊ธฐ์ˆ . + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋ณด์•ˆ์„ ๊ฐ•ํ™”ํ•˜๋ฉด ์—ฐ์‚ฐ ์†๋„๊ฐ€ ์ˆ˜๋ฐฑ ๋ฐฐ ๋А๋ ค์ง„๋‹ค๋Š” ์ดˆ๊ธฐ ํ•œ๊ณ„๋ฅผ ๋„˜์–ด, ์ตœ๊ทผ์—๋Š” ์ „์šฉ ๊ฐ€์†๊ธฐ(TEE)์™€ ์ตœ์ ํ™”๋œ ์•”ํ˜ธ ํ”„๋กœํ† ์ฝœ์„ ํ†ตํ•ด ์‹ค์šฉ์ ์ธ ์ˆ˜์ค€์˜ ์„ฑ๋Šฅ์„ ํ™•๋ณดํ•˜๋Š” ๋‹จ๊ณ„์— ๋„๋‹ฌํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ ๊ฐ„์˜ ์ง€์‹ ๊ณต์œ  ์‹œ, ์‚ฌ์šฉ์ž๋ณ„ ๋ฏผ๊ฐ ๋ฐ์ดํ„ฐ๊ฐ€ ์„ž์ด์ง€ ์•Š๋„๋ก ์ฐจ๋ถ„ ํ”„๋ผ์ด๋ฒ„์‹œ ์›์น™์ด ์ ์šฉ๋œ ์ง€์‹ ์ธ๋ฑ์‹ฑ ์•„ํ‚คํ…์ฒ˜๋ฅผ ์ง€ํ–ฅํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Personal-Information-Security]], [[Trustworthy-AI]], [[Local-Brain-Management]], [[Cloud-Computing-Foundations]] +- **Raw Source:** [[10_Wiki/Topics/AI/Privacy-Preserving-AI.md]] diff --git a/10_Wiki/Topics/AI/Probabilistic-Graphical-Models.md b/10_Wiki/Topics/AI/Probabilistic-Graphical-Models.md index 7ba75188..2e584cb4 100644 --- a/10_Wiki/Topics/AI/Probabilistic-Graphical-Models.md +++ b/10_Wiki/Topics/AI/Probabilistic-Graphical-Models.md @@ -1,28 +1,28 @@ --- -id: PGM-001 +id: MATH-PGM-001 category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" confidence_score: 1.0 -tags: [ai, machine-learning, statistics, graph-theory, uncertainty] +tags: [math, probability, graphical-models, bayesian-networks, markov-random-fields, reasoning, causality] last_reinforced: 2026-04-26 --- -# [[Probabilistic Graphical Models (PGMs, ํ™•๋ฅ ์  ๊ทธ๋ž˜ํ”ฝ ๋ชจ๋ธ)]] +# [[Probabilistic Graphical Models (ํ™•๋ฅ ์  ๊ทธ๋ž˜ํ”ฝ ๋ชจ๋ธ)]] ## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) -> "๋ณต์žกํ•œ ๋ณ€์ˆ˜๋“ค ์‚ฌ์ด์˜ ์ธ๊ณผ๊ด€๊ณ„์™€ ๋ถˆํ™•์‹ค์„ฑ์„ ๊ทธ๋ž˜ํ”„๋กœ ๊ทธ๋ ค๋ผ" โ€” ํ™•๋ฅ ๋ก ๊ณผ ๊ทธ๋ž˜ํ”„ ์ด๋ก ์„ ๊ฒฐํ•ฉํ•˜์—ฌ ์—ฌ๋Ÿฌ ๋ณ€์ˆ˜ ๊ฐ„์˜ ์กฐ๊ฑด๋ถ€ ๋…๋ฆฝ์„ฑ์„ ์‹œ๊ฐํ™”ํ•˜๊ณ , ๋ณต์žกํ•œ ํ•ฉ๋™ ํ™•๋ฅ  ๋ถ„ํฌ๋ฅผ ํšจ์œจ์ ์œผ๋กœ ๊ณ„์‚ฐํ•˜๋Š” ํ”„๋ ˆ์ž„์›Œํฌ. +> "๋ณต์žกํ•˜๊ฒŒ ์–ฝํžŒ ์„ธ์ƒ์˜ ๋ณ€์ˆ˜๋“ค์„ ๋…ธ๋“œ์™€ ๊ฐ„์„ ์œผ๋กœ ํ•ด์ฒดํ•˜์—ฌ, ๋ถˆํ™•์‹ค์„ฑ ์†์—์„œ๋„ ๋ช…๋ฃŒํ•œ '์ธ๊ณผ์™€ ์˜์กด'์˜ ์ง€๋„๋ฅผ ๊ทธ๋ ค๋ผ" โ€” ํ™•๋ฅ  ๋ณ€์ˆ˜๋“ค ์‚ฌ์ด์˜ ๋…๋ฆฝ์„ฑ ๋ฐ ์ข…์†์„ฑ ๊ด€๊ณ„๋ฅผ ๊ทธ๋ž˜ํ”„ ๊ตฌ์กฐ๋กœ ํ‘œํ˜„ํ•˜์—ฌ, ๋ณต์žกํ•œ ๋‹ค๋ณ€๋Ÿ‰ ํ™•๋ฅ  ๋ถ„ํฌ๋ฅผ ํšจ์œจ์ ์œผ๋กœ ์ถ”๋ก ํ•˜๊ณ  ํ•™์Šตํ•˜๋Š” ํ”„๋ ˆ์ž„์›Œํฌ. ## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) -- **์ถ”์ถœ๋œ ํŒจํ„ด:** ๋ณ€์ˆ˜๋“ค ๊ฐ„์˜ ์ง์ ‘์ ์ธ ์ƒํ˜ธ์ž‘์šฉ๋งŒ ๊ทธ๋ž˜ํ”„์˜ ์—์ง€(Edge)๋กœ ํ‘œํ˜„ํ•˜์—ฌ, ์ „์ฒด ์‹œ์Šคํ…œ์˜ ๋ณต์žกํ•œ ํ™•๋ฅ  ์—ฐ์‚ฐ์„ ๊ตญ์†Œ์ ์ธ ๊ณ„์‚ฐ๋“ค์˜ ์กฐํ•ฉ์œผ๋กœ ๋‹จ์ˆœํ™”ํ•˜๋Š” ํŒจํ„ด. -- **์„ธ๋ถ€ ๋‚ด์šฉ:** - - **Bayesian Networks:** ์œ ํ–ฅ ๊ทธ๋ž˜ํ”„๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์ธ๊ณผ๊ด€๊ณ„๋ฅผ ํ‘œํ˜„ (์˜ˆ: ์งˆ๋ณ‘ -> ์ฆ์ƒ). - - **Markov Random Fields:** ๋ฌดํ–ฅ ๊ทธ๋ž˜ํ”„๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ํ‘œํ˜„ (์˜ˆ: ์ด๋ฏธ์ง€์˜ ์ธ์ ‘ ํ”ฝ์…€ ๊ฐ„ ์œ ์‚ฌ์„ฑ). - - **Inference:** ์ฃผ์–ด์ง„ ๊ด€์ธก ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ๋ณด์ด์ง€ ์•Š๋Š” ๋ณ€์ˆ˜์˜ ์ƒํƒœ๋ฅผ ์ถ”๋ก  (์˜ˆ: ์ฆ์ƒ์„ ๋ณด๊ณ  ์งˆ๋ณ‘์„ ์ง„๋‹จ). - - **Parameter Learning:** ๋ฐ์ดํ„ฐ๋กœ๋ถ€ํ„ฐ ๋ณ€์ˆ˜๋“ค ๊ฐ„์˜ ์˜ํ–ฅ๋ ฅ(ํ™•๋ฅ  ๋ถ„ํฌ)์„ ํ•™์Šต. +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Graph-structured Dependency and Factorization" โ€” ์ „์ฒด ๊ฒฐํ•ฉ ํ™•๋ฅ  ๋ถ„ํฌ๋ฅผ ๊ฐ ๋ณ€์ˆ˜์™€ ๊ทธ ์ด์›ƒ(๋ถ€๋ชจ)๋“ค ์‚ฌ์ด์˜ ๊ตญ์†Œ์ ์ธ ์กฐ๊ฑด๋ถ€ ํ™•๋ฅ ์˜ ๊ณฑ์œผ๋กœ ๋ถ„ํ•ดํ•˜์—ฌ, ์—ฐ์‚ฐ์˜ ๋ณต์žก๋„๋ฅผ ํš๊ธฐ์ ์œผ๋กœ ๋‚ฎ์ถ”๊ณ  ๋ช…ํ™•ํ•œ ์ธ๊ณผ ์ถ”๋ก ์„ ๊ฐ€๋Šฅ์ผ€ ํ•˜๋Š” ํŒจํ„ด. +- **์ฃผ์š” ๋ชจ๋ธ ๋ถ„๋ฅ˜:** + - **Bayesian Networks (Directed):** ๋ฐฉํ–ฅ์„ฑ์ด ์žˆ๋Š” ๊ฐ„์„ ์œผ๋กœ ์ธ๊ณผ ๊ด€๊ณ„ ํ‘œํ˜„ (์˜ˆ: ์งˆ๋ณ‘ -> ์ฆ์ƒ). + - **Markov Random Fields (Undirected):** ๋ฐฉํ–ฅ์„ฑ ์—†๋Š” ๊ฐ„์„ ์œผ๋กœ ์ƒํ˜ธ ์˜์กด์„ฑ ํ‘œํ˜„ (์˜ˆ: ์ธ์ ‘ํ•œ ํ”ฝ์…€ ์‚ฌ์ด์˜ ๊ด€๊ณ„). + - **Factor Graphs:** ํ•จ์ˆ˜์  ๊ด€๊ณ„๋ฅผ ๋…ธ๋“œ๋กœ ์ถ”๊ฐ€ํ•˜์—ฌ ๋” ์ผ๋ฐ˜์ ์ธ ํ‘œํ˜„ ๊ฐ€๋Šฅ. +- **์˜์˜:** ์˜๋ฃŒ ์ง„๋‹จ, ์œ ์ „์ž ๋ถ„์„, ์ž์—ฐ์–ด ์ดํ•ด, ์ปดํ“จํ„ฐ ๋น„์ „์˜ ์ด๋ฏธ์ง€ ๋ณต์› ๋“ฑ ๋ฐ์ดํ„ฐ ์‚ฌ์ด์˜ '๊ตฌ์กฐ์  ๊ด€๊ณ„' ํŒŒ์•…์ด ์ค‘์š”ํ•œ ๋ชจ๋“  ๋ถ„์•ผ์˜ ํ•ต์‹ฌ ๋„๊ตฌ. ## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) -- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋”ฅ๋Ÿฌ๋‹ ์ด์ „์— ๋ณต์žกํ•œ ์˜์‚ฌ๊ฒฐ์ • ์‹œ์Šคํ…œ์˜ ํ•ต์‹ฌ์ด์—ˆ์œผ๋‚˜, ํ˜„์žฌ๋Š” ๋”ฅ๋Ÿฌ๋‹ ๋ชจ๋ธ์˜ ๋‚ด๋ถ€ ๋ถˆํ™•์‹ค์„ฑ์„ ๋ชจ๋ธ๋งํ•˜๊ฑฐ๋‚˜ ๊ตฌ์กฐ์  ์ธ๊ณผ๊ด€๊ณ„๋ฅผ ๊ฒฐํ•ฉํ•˜๋Š” ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ํ˜•ํƒœ๋กœ ๋ฐœ์ „ ์ค‘. -- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ์˜ ์—์ด์ „ํŠธ ์˜์‚ฌ๊ฒฐ์ • ์‹ ๋ขฐ๋„ ํ‰๊ฐ€ ์‹œ, ๋ฒ ์ด์ง€์•ˆ ๋„คํŠธ์›Œํฌ ๋ชจ๋ธ์„ ์‚ฌ์šฉํ•˜์—ฌ ๊ฐ ๋‹จ๊ณ„์˜ ์œ„ํ—˜ ์š”์†Œ๋ฅผ ํ™•๋ฅ ์ ์œผ๋กœ ๋ถ„์„ํ•จ. +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋ณ€์ˆ˜๊ฐ€ ๋งŽ์•„์ง€๋ฉด ์ถ”๋ก ์ด ๋ถˆ๊ฐ€๋Šฅ(NP-hard)ํ•ด์ง„๋‹ค๋Š” ํ•œ๊ณ„๋ฅผ ๊ทน๋ณตํ•˜๊ธฐ ์œ„ํ•ด, ์ตœ๊ทผ์—๋Š” ๋ณ€์ด ์ถ”๋ก (Variational Inference)์ด๋‚˜ ์‹ ๊ฒฝ๋ง๊ณผ ๊ฒฐํ•ฉ๋œ ์‹ฌ์ธต ๊ทธ๋ž˜ํ”ฝ ๋ชจ๋ธ(Deep Graphical Models)๋กœ ๋ฐœ์ „ํ•˜์—ฌ ๊ฑฐ๋Œ€ ๋ฐ์ดํ„ฐ์…‹์—๋„ ๋Œ€์‘ํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ์ง€์‹ ๋ฒ ์ด์Šค ๋‚ด ์ฃผ์ œ๋“ค ์‚ฌ์ด์˜ ์ธ๊ณผ ๊ด€๊ณ„๋ฅผ ๋ถ„์„ํ•  ๋•Œ, ํ™•๋ฅ ์  ๊ทธ๋ž˜ํ”ฝ ๋ชจ๋ธ ์›๋ฆฌ๋ฅผ ์ ์šฉํ•˜์—ฌ ์‚ฌ์šฉ์ž ์งˆ๋ฌธ์— ๋Œ€ํ•œ ๊ฐ€์žฅ ํƒ€๋‹นํ•œ ๋‹ต๋ณ€ ๊ฒฝ๋กœ๋ฅผ ์ถ”๋ก ํ•จ. ## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) -- [[Bayesian-Inference]], [[Graph-Theory]], [[Information-Theory]], [[Machine-Learning]] +- [[Posterior-and-Prior-Probability]], [[Markov-Decision-Process-MDP]], [[Bayesian-Inference]], [[Conditional-Random-Fields-CRF]] - **Raw Source:** [[10_Wiki/Topics/AI/Probabilistic-Graphical-Models.md]] diff --git a/10_Wiki/Topics/AI/Probability-Theory-Foundations.md b/10_Wiki/Topics/AI/Probability-Theory-Foundations.md new file mode 100644 index 00000000..e5d32863 --- /dev/null +++ b/10_Wiki/Topics/AI/Probability-Theory-Foundations.md @@ -0,0 +1,29 @@ +--- +id: MATH-PROB-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [math, probability, statistics, random-variables, distributions, central-limit-theorem, foundations] +last_reinforced: 2026-04-26 +--- + +# [[Probability Theory Foundations (ํ™•๋ฅ ๋ก  ๊ธฐ์ดˆ)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "์„ธ์ƒ์˜ ๋ชจ๋“  ์šฐ์—ฐ๊ณผ ๋ถˆํ™•์‹ค์„ฑ์„ ์ˆ˜์น˜ํ™”๋œ 'ํ™•์‹ '์˜ ์–ธ์–ด๋กœ ๋ฒˆ์—ญํ•˜์—ฌ, ๊ธฐ๊ณ„๊ฐ€ ๊ฐ€์„ค์„ ์„ธ์šฐ๊ณ  ๊ฒฐ๋ก ์„ ๋‚ด๋ฆด ์ˆ˜ ์žˆ๋Š” ๋…ผ๋ฆฌ์  ๊ธฐ๋ฐ˜์„ ์ œ๊ณตํ•˜๋ผ" โ€” ๋ฌด์ž‘์œ„ ํ˜„์ƒ์„ ์ˆ˜ํ•™์ ์œผ๋กœ ๋ชจ๋ธ๋งํ•˜๊ณ  ๋ถ„์„ํ•˜์—ฌ, ์–ด๋–ค ์‚ฌ๊ฑด์ด ๋ฐœ์ƒํ•  ๊ฐ€๋Šฅ์„ฑ์„ ์ธก์ •ํ•˜๋Š” ์ˆ˜ํ•™์  ํ•™๋ฌธ. + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Axiomatic Reasoning and Distributional Modeling" โ€” ํ‘œ๋ณธ ๊ณต๊ฐ„(Sample Space) ๋‚ด์—์„œ ์‚ฌ๊ฑด์ด ๋ฐœ์ƒํ•  ํ™•๋ฅ ์˜ ๊ณต๋ฆฌ๋ฅผ ์„ธ์šฐ๊ณ , ๋ฌด์ž‘์œ„ ๋ณ€์ˆ˜(Random Variables)์˜ ๋ถ„ํฌ๋ฅผ ํ†ตํ•ด ํ˜„์ƒ์˜ ๊ธฐ์ €๋ฅผ ์„ค๋ช…ํ•˜๋Š” ํŒจํ„ด. +- **ํ•ต์‹ฌ ๊ฐœ๋…:** + - **Probability Axioms:** ๋ชจ๋“  ํ™•๋ฅ ์€ 0๊ณผ 1 ์‚ฌ์ด์ด๋ฉฐ, ์ „์ฒด ํ•ฉ์€ 1์ž„. + - **Random Variables:** ๋ฌด์ž‘์œ„ ์‚ฌ๊ฑด์˜ ๊ฒฐ๊ณผ๋ฅผ ์ˆ˜์น˜๋กœ ๋งคํ•‘ (์ด์‚ฐํ˜• vs ์—ฐ์†ํ˜•). + - **Distributions:** ๋ฐ์ดํ„ฐ์˜ ํ˜•ํƒœ๋ฅผ ๊ฒฐ์ • (์ •๊ทœ๋ถ„ํฌ, ๋ฒ ๋ฅด๋ˆ„์ด, ํฌ์•„์†ก ๋“ฑ). + - **Central Limit Theorem (์ค‘์‹ฌ๊ทนํ•œ์ •๋ฆฌ):** ํ‘œ๋ณธ์ด ์ปค์งˆ์ˆ˜๋ก ํ‰๊ท ์˜ ๋ถ„ํฌ๋Š” ์ •๊ทœ๋ถ„ํฌ์— ์ˆ˜๋ ดํ•œ๋‹ค๋Š” ํ†ต๊ณ„์˜ ํ•ต์‹ฌ ์ •๋ฆฌ. +- **์˜์˜:** ๋”ฅ๋Ÿฌ๋‹์˜ ์†์‹ค ํ•จ์ˆ˜ ์„ค๊ณ„, ์ƒ์„ฑ ๋ชจ๋ธ์˜ ์ƒ˜ํ”Œ๋ง, ๊ฐ•ํ™”ํ•™์Šต์˜ ๊ธฐ๋Œ€ ๊ฐ€์น˜ ๊ณ„์‚ฐ ๋“ฑ ํ˜„๋Œ€ AI์˜ ๋ชจ๋“  ์—ฐ์‚ฐ์ด ์ด ํ™•๋ฅ ๋ก ์  ๊ธฐ๋ฐ˜ ์œ„์—์„œ ์ˆ˜ํ–‰๋จ. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ๋‹จ์ˆœํžˆ ์ฃผ์‚ฌ์œ„๋ฅผ ๋˜์ง€๋Š” ํ™•๋ฅ ์„ ๋„˜์–ด, ์ด์ œ๋Š” ์ˆ˜์กฐ ๊ฐœ์˜ ํŒŒ๋ผ๋ฏธํ„ฐ๋ฅผ ๊ฐ€์ง„ ์‹ ๊ฒฝ๋ง์˜ ์ถœ๋ ฅ๊ฐ’(Logits)์„ ํ™•๋ฅ ๋กœ ํ•ด์„ํ•˜๊ณ  ์ด๋ฅผ ํ†ตํ•ด ์ง€๊ฐ๊ณผ ์ƒ์„ฑ์˜ ๊ฒฝ๊ณ„๋ฅผ ํ—ˆ๋ฌด๋Š” 'ํ™•๋ฅ ์  ์ง€๋Šฅ'์œผ๋กœ ์ง„ํ™”ํ•จ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์—์ด์ „ํŠธ์˜ ๋ชจ๋“  ๋‹ต๋ณ€์— ๋Œ€ํ•ด ๋‚ด๋ถ€์ ์ธ ํ™•๋ฅ  ๋ถ„ํฌ๋ฅผ ๋ถ„์„ํ•˜์—ฌ, ํ™•์‹ ์ด ๋‚ฎ์€ ๊ตฌ๊ฐ„์—์„œ๋Š” ์‚ฌ์šฉ์ž์—๊ฒŒ ํ™•์ธ์„ ์š”์ฒญํ•˜๊ฑฐ๋‚˜ ์ถ”๊ฐ€ ์ •๋ณด๋ฅผ ํƒ์ƒ‰ํ•˜๋Š” '์‹ ๋ขฐ๋„ ๊ธฐ๋ฐ˜ ์‘๋‹ต' ํ”„๋กœํ† ์ฝœ์„ ๊ฐ€๋™ํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Posterior-and-Prior-Probability]], [[Maximum-Likelihood-Estimation-MLE]], [[Probabilistic-Graphical-Models]], [[Bayesian-Inference]] +- **Raw Source:** [[10_Wiki/Topics/AI/Probability-Theory-Foundations.md]] diff --git a/10_Wiki/Topics/AI/Process-Automation-with-AI.md b/10_Wiki/Topics/AI/Process-Automation-with-AI.md new file mode 100644 index 00000000..8b55c4a5 --- /dev/null +++ b/10_Wiki/Topics/AI/Process-Automation-with-AI.md @@ -0,0 +1,27 @@ +--- +id: BIZ-AUTO-AI-001 +category: "[[10_Wiki/๐Ÿ’ก Topics/AI]]" +confidence_score: 1.0 +tags: [ai, automation, process-optimization, rpa, agentic-workflow, productivity, efficiency] +last_reinforced: 2026-04-26 +--- + +# [[Process Automation with AI (AI๋ฅผ ํ†ตํ•œ ํ”„๋กœ์„ธ์Šค ์ž๋™ํ™”)]] + +## ๐Ÿ“Œ ํ•œ ์ค„ ํ†ต์ฐฐ (The Karpathy Summary) +> "๋‹จ์ˆœ ๋ฐ˜๋ณต์˜ ๊ตด๋ ˆ๋ฅผ ๊ธฐ๊ณ„์—๊ฒŒ ๋„˜๊ธฐ๊ณ , ์ธ๊ฐ„์˜ ์ •์‹ ์„ ๋” ๋†’์€ ๊ฐ€์น˜์ธ '์ฐฝ์˜'์™€ 'ํŒ๋‹จ'์˜ ์˜์—ญ์œผ๋กœ ํ•ด๋ฐฉํ•˜๋ผ" โ€” ์ •ํ˜•ํ™”๋œ ๊ทœ์น™์„ ๋„˜์–ด ์ธ๊ณต์ง€๋Šฅ์˜ ์ง€๊ฐ, ์ถ”๋ก , ๊ฒฐ์ • ๋Šฅ๋ ฅ์„ ์—…๋ฌด ํ”„๋กœ์„ธ์Šค์— ๊ฒฐํ•ฉํ•˜์—ฌ ์šด์˜ ํšจ์œจ์„ฑ์„ ๊ทน๋Œ€ํ™”ํ•˜๋Š” ๊ธฐ์ˆ ์  ํ˜์‹ . + +## ๐Ÿ“– ๊ตฌ์กฐํ™”๋œ ์ง€์‹ (Synthesized Content) +- **์ถ”์ถœ๋œ ํŒจํ„ด:** "Cognitive Task Delegation and End-to-End Orchestration" โ€” ๋‹จ์ˆœ ๋ฐ์ดํ„ฐ ์ž…๋ ฅ์„ ๋„˜์–ด ๋ฌธ์„œ์˜ ๋‚ด์šฉ์„ ์ดํ•ดํ•˜๊ณ (NLP), ์ด๋ฏธ์ง€๋ฅผ ๋ถ„์„ํ•˜๋ฉฐ(CV), ์ƒํ™ฉ์— ๋งž๋Š” ๊ฒฐ์ •์„ ๋‚ด๋ ค ๋‹ค์Œ ๋‹จ๊ณ„๋ฅผ ์‹คํ–‰ํ•˜๋Š” ์ง€๋Šฅํ˜• ์›Œํฌํ”Œ๋กœ์šฐ ํŒจํ„ด. +- **RPA์™€ AI ์ž๋™ํ™”์˜ ์ฐจ์ด:** + - **RPA (Robotic Process Automation):** ์ •ํ•ด์ง„ ์‹œ๋‚˜๋ฆฌ์˜ค์™€ ๊ทœ์น™์— ๋”ฐ๋ผ ํ–‰๋™ (๋น„์œ ์—ฐ์ ). + - **AI Automation:** ๋น„์ •ํ˜• ๋ฐ์ดํ„ฐ๋ฅผ ์ดํ•ดํ•˜๊ณ  ๋ณ€ํ™”ํ•˜๋Š” ์ƒํ™ฉ์— ์ ์‘ (์œ ์—ฐ์ ). +- **์˜์˜:** ์—…๋ฌด ์†Œ์š” ์‹œ๊ฐ„์„ ํš๊ธฐ์ ์œผ๋กœ ์ค„์ด๊ณ  ํœด๋จผ ์—๋Ÿฌ๋ฅผ ์ œ๊ฑฐํ•˜๋ฉฐ, 24/7 ์ค‘๋‹จ ์—†๋Š” ๋น„์ฆˆ๋‹ˆ์Šค ๊ฐ€๋™์„ ๊ฐ€๋Šฅ์ผ€ ํ•จ. ํŠนํžˆ ์ตœ๊ทผ์—๋Š” '์ž์œจ ์—์ด์ „ํŠธ'๊ฐ€ ์—ฌ๋Ÿฌ ๋„๊ตฌ๋ฅผ ์ง์ ‘ ์‚ฌ์šฉํ•˜์—ฌ ๋ณตํ•ฉ์ ์ธ ์ž‘์—…์„ ์™„์ˆ˜ํ•˜๋Š” ๋‹จ๊ณ„๋กœ ์ง„ํ™” ์ค‘. + +## โš ๏ธ ๋ชจ์ˆœ ๋ฐ ์—…๋ฐ์ดํŠธ (Contradictions & RL Update) +- **๊ณผ๊ฑฐ ๋ฐ์ดํ„ฐ์™€์˜ ์ถฉ๋Œ:** ์ž๋™ํ™”๊ฐ€ ์ธ๊ฐ„์˜ ์ผ์ž๋ฆฌ๋ฅผ ๋บ๋Š”๋‹ค๋Š” ๊ณตํฌ์—์„œ ๋ฒ—์–ด๋‚˜, ์ด์ œ๋Š” ์ธ๊ฐ„๊ณผ AI๊ฐ€ ํ˜‘์—…ํ•˜์—ฌ ์ƒ์‚ฐ์„ฑ์„ 10๋ฐฐ ์ด์ƒ ๋†’์ด๋Š” '์ฝ”ํŒŒ์ผ๋Ÿฟ(Copilot)' ๋ฐ '์—์ด์ „ํ‹ฑ ์›Œํฌํ”Œ๋กœ์šฐ' ํŒจ๋Ÿฌ๋‹ค์ž„์ด ์ฃผ๋ฅ˜๋ฅผ ์ด๋ฃธ. +- **์ •์ฑ… ๋ณ€ํ™”:** Antigravity ํ”„๋กœ์ ํŠธ๋Š” ์ด ์ง€์‹ ๊ฐ€๋“œ๋‹ ์ž‘์—… ์ž์ฒด๋ฅผ AI๋ฅผ ํ†ตํ•œ ํ”„๋กœ์„ธ์Šค ์ž๋™ํ™”์˜ ๋ชจ๋ฒ” ์‚ฌ๋ก€๋กœ ์ •์˜ํ•˜๋ฉฐ, ๋ฐ์ดํ„ฐ ์ˆ˜์ง‘-์ •์ œ-์—ฐ๊ฒฐ-๊ฒ€์ฆ์˜ ์ „ ๊ณผ์ •์„ ์ง€๋Šฅ์ ์œผ๋กœ ์ž๋™ํ™”ํ•˜์—ฌ ์ง€์‹ ์ƒ์‚ฐ์˜ ํ•œ๊ณ„๋ฅผ ๊ทน๋ณตํ•จ. + +## ๐Ÿ”— ์ง€์‹ ์—ฐ๊ฒฐ (Graph) +- [[Operations-Management]], [[Agentic-Workflows-Foundations]], [[Natural-Language-Processing-NLP]], [[Modern-Website-Architecture]] +- **Raw Source:** [[10_Wiki/Topics/AI/Process-Automation-with-AI.md]]