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Deep Delta Learning

Deep Delta Learning์€ $\beta$ gate์— ์˜ํ•ด 3๊ฐ€์ง€ ์—ฐ์‚ฐ์œผ๋กœ residual connection์„ ๊ฐ•ํ™”ํ–ˆ์Šต๋‹ˆ๋‹ค. $\beta \rightarrow 0$์˜ ๊ฒฝ์šฐ layer๋ฅผ ํ†ต๊ณผํ•œ ๊ฐ’์„ ๋ฌด์‹œํ•˜๊ณ  ์ž…๋ ฅ์„ ์ถœ๋ ฅ์œผ๋กœ ๊ทธ๋Œ€๋กœ ๋ณด๋‚ด๋ฉฐ (identity) $\beta \rightarrow 1$์ผ ๋•Œ์—๋Š” $k$์— ๋”ฐ๋ผ ์›๋ณธ ๊ฐ’์„ ์‚ญ์ œํ•˜๊ณ , $v$๊ฐ’์„ ํ•ด๋‹น ๋ถ€๋ถ„์— ํ•ฉํ•˜๊ฒŒ ๋ฉ๋‹ˆ๋‹ค. ์ด๋•Œ $v$๋Š” mlp์™€ ๊ฐ™์ด ํ•ด๋‹น block์—์„œ ์—ฐ์‚ฐํ•˜๋Š” ์—ฐ์‚ฐ๊ณ„์ธต์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. $\beta \rightarrow 2$์ผ๋•Œ์—๋Š” $k$์— ๋”ฐ๋ผ ์›๋ณธ ๊ฐ’์„ ๋ฐ˜์‚ฌ์‹œํ‚ค๊ณ , ํ•ด๋‹น ์œ„์น˜๋ฅผ $2v$ ๋งŒํผ ๋ณ€ํ™”ํ•œ ๊ฐ’์„ ๋”ํ•ด์ค๋‹ˆ๋‹ค. ์ด๋ฅผ ํ†ตํ•ด ๊ธฐ์กด ResBlock์—์„œ๋Š” ํ• ์ˆ˜ ์—†์—ˆ๋˜ ๊ธฐํ•˜ํ•™์  ๋ณ€ํ™˜์„ ์ผ๋ฐ˜ํ™”ํ•˜๊ณ  ์žฌ์ •๋ ฌํ•˜๋Š” ๋Šฅ๋ ฅ์„ ๊ฐ–์ถœ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

January 15, 2026 ยท 5 min ยท Donghyun Han

mHC: Manifold-Constrained Hyper-Connections

๊ธฐ์กด hyper connection์€ residual connection์„ ๋Œ€์ฒดํ•˜์—ฌ ์ข‹์€ ์„ฑ๋Šฅ์„ ๋ณด์ด์ง€๋งŒ, ํ›ˆ๋ จ ๋ถˆ์•ˆ์ •์„ฑ ๋ฐ ๋ฉ”๋ชจ๋ฆฌ ์˜ค๋ฒ„ํ—ค๋“œ๊ฐ€ ํฌ๋‹ค๋Š” ๋‹จ์ ์„ ๊ฐ€์ง. ์ด๋Š” hyper connection์ด identity mapping์„ ์†์ƒ์‹œํ‚ค๊ธฐ ๋•Œ๋ฌธ์— ์ผ์–ด๋‚˜๋Š” ํ˜„์ƒ์ธ๋ฐ, $m$HC๋Š” identity mapping์„ ๋ณต์›ํ•˜๋ฉด์„œ๋„ ์ตœ์ ํ™”๋ฅผ ํ†ตํ•ด ํšจ์œจ์„ฑ์„ ๋ณด์žฅํ•˜๋Š” ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ์ œ์•ˆํ•จ.

January 6, 2026 ยท 4 min ยท Donghyun Han

Relational Visual Similarity

LLaVA์˜ corresponding์ธ ์œ„์Šค์ฝ˜์‹ ์˜ ์ด์šฉ์žฌ ๊ต์ˆ˜๋‹˜์˜ ์—ฐ๊ตฌ์‹ค์—์„œ ์ œ์•ˆ๋œ ๋…ผ๋ฌธ์œผ๋กœ visual representation์„ ์ธ๊ฐ„๊ณผ ์œ ์‚ฌํ•œ ๋ฑกํ•ญ์œผ๋กœ ์ •๋ ฌ ํ•  ์ˆ˜ ์žˆ๋„๋ก ์ œ์‹œ

December 14, 2025 ยท 3 min ยท Donghyun Han

The Collapse of Patches

๋Œ€๋ถ€๋ถ„์˜ ์ตœ์‹  ๋น„์ „ ๋ชจ๋ธ์€ ์ด๋ฏธ์ง€๋ฅผ patch ๋‹จ์œ„๋กœ ์ฒ˜๋ฆฌํ• ๋•Œ, ๊ฐ patch ๊ฐ„์˜ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๊ท ๋“ฑํ•˜๊ฒŒ ์ทจ๊ธ‰ํ•˜๊ฑฐ๋‚˜ ๋ฌด์ž‘์œ„ ์ˆœ์„œ๋กœ ํ•™์Šตํ•จ (MIM, MAE ๋“ฑ) ๊ทธ๋Ÿฌ๋‚˜ ์ด๋ฏธ์ง€์˜ ํŠน์ • ์ค‘์š” ๋ถ€๋ถ„(e.g., ๋‹ญ์˜ ๋ถ€๋ฆฌ)์„ ๋จผ์ € ๋ณธ๋‹ค๋ฉด ๋‹ค๋ฅธ ๋ถ€๋ถ„์„ ๋จผ์ € ๋ณด๋Š” ๊ฒƒ๋ณด๋‹ค (e.g., ์ž”๋”” ๊ฐ™์€ ๋ฐฐ๊ฒฝ) ๋‚จ์€ ์ด๋ฏธ์ง€์˜ ๋ถˆํ™•์‹ค์„ฑ์„ ๋” ํฌ๊ฒŒ ์ค„์—ฌ์ค€๋‹ค๊ฐ€ ํ•ต์‹ฌ. ๋”ฐ๋ผ์„œ ์ด๋ฏธ์ง€๋ฅผ ๊ตฌ์„ฑํ•˜๋Š” ์ตœ์ ์˜ ์ˆœ์„œ๋ฅผ ์ฐพ์•„๋‚ด์„œ ์ด๋ฏธ์ง€ ์ƒ์„ฑ๊ณผ ๋ถ„๋ฅ˜์˜ ์„ฑ๋Šฅ์„ ๋†’์ด๋Š” ๋ฐฉ๋ฒ•์„ ์ œ์•ˆ

December 4, 2025 ยท 3 min ยท Donghyun Han

Evolution Strategies at the Hyperscale

Evolution Strategies(ES)๋ผ๋Š” ํ•™์Šต ๋ฐฉ์‹์€ forward pass๋งŒ์œผ๋กœ ํ•™์Šต ๊ฐ€๋Šฅํ•œ ๊ฐ•๋ ฅํ•œ ์•Œ๊ณ ๋ฆฌ์ฆ˜์ธ๋ฐ, ์‹ค์งˆ์ ์œผ๋กœ LLM๊ณผ ๊ฐ™์€ huge model์—๋Š” ์ ์šฉ์ด ๋ถˆ๊ฐ€๋Šฅํ•œ limitation์„ ํ•ด๊ฒฐํ•˜๊ณ ์ž ์ œ์•ˆ.

November 26, 2025 ยท 3 min ยท Donghyun Han