# ๐Ÿ—„๏ธ Bayesian Evolution: Andrew vs Vikash์˜ ์ •๋ณด ํ†ตํ•ฉ ์•„ํ‚คํ…์ฒ˜ ## ํ•ต์‹ฌ ๋น„๊ต: Word to World์˜ ๋‘ ๊ฒฝ๋กœ | ์ฐจ์› | Andrew (Bayesian Workflow) | Vikash (Word to World Models) | |------|---------------------------|------------------------------| | **์ •๋ณด ํ†ตํ•ฉ์˜ ์ •์˜** | Tangled workflow of iterative modeling | Rational meaning construction | | **๋น„์šฉ์˜ ์›์ฒœ** | ๋ชจ๋ธ ๊ตฌ์ถ•-๊ฒ€์ฆ-์ˆ˜์ •์˜ ๋ฐ˜๋ณต | ์ž์—ฐ์–ด โ†’ PLoT ๋ฒˆ์—ญ์˜ ๋ฌธ๋งฅ ์˜์กด์„ฑ | | **ํ†ตํ•ฉ ๋ฉ”์ปค๋‹ˆ์ฆ˜** | Prior/Posterior predictive checks | LLM + Probabilistic programs | | **๋ถˆํ™•์‹ค์„ฑ ์ฒ˜๋ฆฌ** | ๊ณ„์ธต์  ๋ชจ๋ธ๋ง์œผ๋กœ propagation | ํ™•๋ฅ ์  ์ถ”๋ก  + ์‹ฌ๋ณผ๋ฆญ ๋ชจ๋“ˆ | ## ์ •๋ณด ํ†ตํ•ฉ ๋น„์šฉ(i)์˜ ๊ตฌ์ฒด์  ๊ตฌํ˜„ | ๋‹จ๊ณ„ | Andrew ์ ‘๊ทผ | Vikash ์ ‘๊ทผ | ์šฐ๋ฆฌ ๋ชจ๋ธ๊ณผ์˜ ์—ฐ๊ฒฐ | |------|------------|------------|------------------| | **1. ์ •๋ณด ์ž…๋ ฅ** | ๋ฐ์ดํ„ฐ ๊ด€์ฐฐ | ์ž์—ฐ์–ด ๋ฐœํ™” | ์‹œ์žฅ ์‹ ํ˜ธ | | **2. ๋ณ€ํ™˜ ๋น„์šฉ** | ๋ชจ๋ธ specification | LLM ๋ฒˆ์—ญ ๋น„์šฉ | ์•ฝ์† ์–ธ์–ด๋กœ ๋ณ€ํ™˜ | | **3. ํ†ตํ•ฉ ๊ณผ์ •** | MCMC ์ƒ˜ํ”Œ๋ง | ํ™•๋ฅ  ํ”„๋กœ๊ทธ๋žจ ์‹คํ–‰ | ฯ„ ์กฐ์ • | | **4. ๊ฒ€์ฆ ๋น„์šฉ** | SBC, LOO-CV | Coherence checking | ํ”ผ๋ด‡ ๊ฐ€๋Šฅ์„ฑ ํ‰๊ฐ€ | | **5. ์—…๋ฐ์ดํŠธ** | Posterior ๊ฐฑ์‹  | World model ์ˆ˜์ • | ฯ† ์žฌ์กฐ์ • | ## ๊ณตํ†ต์ : ๊ณ„์‚ฐ์  ํ•ฉ๋ฆฌ์„ฑ์˜ ์ถ”๊ตฌ ### ๋ฉ”ํƒ€-์ธ์ง€์  ๊ตฌ์กฐ - **Andrew**: "We fit many models, only subset relevant" - **Vikash**: "Context-sensitive mapping to thought" - **์šฐ๋ฆฌ**: "Promise before aspiration before uncertainty" ### ๋น„์šฉ-ํŽธ์ต ํŠธ๋ ˆ์ด๋“œ์˜คํ”„ - **Andrew**: Computational cost vs Inference quality - **Vikash**: Translation fidelity vs Reasoning efficiency - **์šฐ๋ฆฌ**: Information precision vs Adaptation flexibility ## ์ฐจ์ด์ : ์•„ํ‚คํ…์ฒ˜์˜ ์ดˆ์  | ํŠน์„ฑ | Andrew | Vikash | ํ•จ์˜ | |-----|--------|--------|------| | **์ฃผ์š” ๋ณ‘๋ชฉ** | ๊ณ„์‚ฐ ๋ณต์žก๋„ | ์˜๋ฏธ ๊ตฌ์„ฑ | i์˜ ๋‹ค๋ฅธ ์ธก๋ฉด | | **ํ•ด๊ฒฐ ์ „๋žต** | Reparameterization | Modular integration | ฯ„ ์ตœ์ ํ™” ์ ‘๊ทผ | | **์ถœ๋ ฅ ํ˜•ํƒœ** | ํŒŒ๋ผ๋ฏธํ„ฐ ๋ถ„ํฌ | ์„ธ๊ณ„ ๋ชจ๋ธ | ์•ฝ์†์˜ ํ˜•ํƒœ | ## ์šฐ๋ฆฌ ๋ชจ๋ธ์—์˜ ์‹œ์‚ฌ์  ### ์ •๋ณด ํ†ตํ•ฉ ๋น„์šฉ i์˜ ์„ธ๋ถ„ํ™” ``` i = i_computation + i_translation + i_validation ``` - **i_computation**: Andrew์˜ workflow cost - **i_translation**: Vikash์˜ meaning construction cost - **i_validation**: ์šฐ๋ฆฌ์˜ promise verification cost ### ฯ„ ์„ ํƒ์˜ ํ•ฉ๋ฆฌํ™” - ๋†’์€ i โ†’ ๋‚ฎ์€ ฯ„ ์„ ํ˜ธ (Rational ignorance) - Andrew: "Quick suboptimal better than slow optimal" - Vikash: "Approximate translation sufficient for action" ## ์‹ค๋ฌด์  ํ•จ์˜ | ์ƒํ™ฉ | Andrew ์ฒ˜๋ฐฉ | Vikash ์ฒ˜๋ฐฉ | ํ†ตํ•ฉ ์ฒ˜๋ฐฉ | |------|------------|------------|----------| | **์ดˆ๊ธฐ ๋‹จ๊ณ„** | Prior predictive checks | Broad language model | ๋‚ฎ์€ ฯ„, ๋†’์€ ํƒ์ƒ‰ | | **์„ฑ์žฅ ๋‹จ๊ณ„** | Hierarchical modeling | Domain-specific modules | ฯ„ ์ ์ง„์  ์ฆ๊ฐ€ | | **์„ฑ์ˆ™ ๋‹จ๊ณ„** | Model comparison | Refined world model | ๋†’์€ ฯ„, ๊นŠ์€ ๋ชฐ์ž… | ## ํ•ต์‹ฌ ํ†ต์ฐฐ: ๋‘ ๊ฑฐ์žฅ์˜ ์ˆ˜๋ ด ๋‘ ์ ‘๊ทผ ๋ชจ๋‘ **"์™„๋ฒฝํ•œ ์ •๋ณด ์ฒ˜๋ฆฌ๋Š” ๋ถˆ๊ฐ€๋Šฅํ•˜๊ณ  ๋ถˆํ•„์š”ํ•˜๋‹ค"**๋Š” ๊ฒฐ๋ก ์— ๋„๋‹ฌ: - Andrew: Workflow์˜ tangled nature ์ˆ˜์šฉ - Vikash: Approximate reasoning์˜ ์ถฉ๋ถ„์„ฑ - ์šฐ๋ฆฌ: Rational ignorance์˜ ์ „๋žต์  ๊ฐ€์น˜ *"์ •๋ณด๋ฅผ ์ง€์‹์œผ๋กœ ๋ฐ”๊พธ๋Š” ๋น„์šฉ์ด ๊ทธ ๊ฐ€์น˜๋ฅผ ์ดˆ๊ณผํ•  ๋•Œ, ๋ฌด์ง€๋Š” ํ•ฉ๋ฆฌ์  ์„ ํƒ์ด ๋œ๋‹ค."*