๊ด€๋ฆฌ ๋ฉ”๋‰ด

๋ชฉ๋ก์œ ํด๋ฆฌ๋””์•ˆ ๊ฑฐ๋ฆฌ (1)

DATA101

[NLP] ๋ฌธ์„œ ์œ ์‚ฌ๋„ ๋ถ„์„: (2) ์œ ํด๋ฆฌ๋””์•ˆ ๊ฑฐ๋ฆฌ(Euclidean Distance)

๐Ÿ“š ๋ชฉ์ฐจ1. ์œ ํด๋ฆฌ๋“œ ๊ฑฐ๋ฆฌ ๊ฐœ๋…2. ์œ ํด๋ฆฌ๋“œ ๊ฑฐ๋ฆฌ ์‹ค์Šต1. ์œ ํด๋ฆฌ๋“œ ๊ฑฐ๋ฆฌ ๊ฐœ๋…์ˆ˜ํ•™์  ๊ด€์  ์ ‘๊ทผ์œ ํด๋ฆฌ๋“œ ๊ฑฐ๋ฆฌ(Euclidean Distance)๋Š” ๋‘ ์  ์‚ฌ์ด์˜ ๊ฑฐ๋ฆฌ๋ฅผ ๊ณ„์‚ฐํ•˜๋Š” ๊ธฐ๋ฒ•์ž…๋‹ˆ๋‹ค. ๋‘ ์  \(p\)์™€ \(q\)๊ฐ€ ๊ฐ๊ฐ \((p_1, p_2, ..., p_n)\), \((q_1, q_2, ..., q_n)\) ์ขŒํ‘œ๋ฅผ ๊ฐ€์งˆ ๋•Œ, ๋‘ ์  ์‚ฌ์ด์˜ ๊ฑฐ๋ฆฌ๋ฅผ ์œ ํด๋ฆฌ๋“œ ๊ฑฐ๋ฆฌ ๊ณต์‹์œผ๋กœ ํ‘œํ˜„ํ•˜๋ฉด ์•„๋ž˜์™€ ๊ฐ™์Šต๋‹ˆ๋‹ค. $$ \sqrt{(q_1 - p_1)^2 + (q_2 - p_2)^2 + ... + (q_n - p_n)^2} = \sqrt{\displaystyle\sum_{i=1}^{n}(q_i - p_i)^2}$$ ๋‹ค์ฐจ์›์ด ์•„๋‹Œ 2์ฐจ์› ๊ณต๊ฐ„์—์„œ ์œ ํด๋ฆฌ๋“œ ๊ฑฐ๋ฆฌ๋ฅผ ์‰ฝ๊ฒŒ ์•Œ์•„๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค(๊ทธ๋ฆผ 1 ์ฐธ๊ณ ). ๋‘ ์  \..