machine learning study - k821209/pipelines GitHub Wiki

#Terms#

Manifolds

http://markov.tistory.com/39

๋งค๋‹ˆํด๋“œ(manifold)๋ž€, ๋‘ ์  ์‚ฌ์ด์˜ ๊ฑฐ๋ฆฌ ํ˜น์€ ์œ ์‚ฌ๋„๊ฐ€ ๊ทผ๊ฑฐ๋ฆฌ์—์„œ๋Š” ์œ ํด๋ฆฌ๋””์•ˆ(Euclidean metric, ์ง์„  ๊ฑฐ๋ฆฌ)์„ ๋”ฐ๋ฅด์ง€๋งŒ ์›๊ฑฐ๋ฆฌ์—์„œ๋Š” ๊ทธ๋ ‡์ง€ ์•Š์€ ๊ณต๊ฐ„์„ ๋งํ•ฉ๋‹ˆ๋‹ค. ๋งˆ์น˜ ์•„๋ž˜ ๊ทธ๋ฆผ์ฒ˜๋Ÿผ, ์กฐ๊ทธ๋งŒ ์œ ํด๋ฆฌ๋””์•ˆ ๊ณต๊ฐ„ ์กฐ๊ฐ๋“ค(์œก๋ฉด์ฒด ํ•˜๋‚˜๋ฅผ ๊ทผ๊ฑฐ๋ฆฌ์—์„œ ์ •์˜๋œ ์œ ํด๋ฆฌ๋””์•ˆ ๊ณต๊ฐ„์ด๋ผ๊ณ  ์ƒ๊ฐํ•˜์‹œ๋ฉด ๋ฉ๋‹ˆ๋‹ค)์ด ๋‹ค๋‹ฅ๋‹ค๋‹ฅ ๋ถ™์–ด ์ด๋ฃจ์–ด์ ธ์„œ ์ „์ฒด์ ์œผ๋กœ ๋ณด๋ฉด ๋น„์œ ํด๋ฆฌ๋””์•ˆ(non-Euclidean)์ด ๋˜๋Š” ๊ณต๊ฐ„์„ ๋œปํ•ฉ๋‹ˆ๋‹ค.