DeepLearning_L01 - 8BitsCoding/RobotMentor GitHub Wiki


What is?

  • ML?
  • learning?
    • supervised
    • unsupervised
  • regression?
  • classfication?

ML?

Limitations of explicit programming (explicit(๋ถ„ํ• ) ํ”„๋กœ๊ทธ๋ž˜๋ฐ์˜ ํ•œ๊ณ„์—์„œ ๋ฐœ์ƒ) Ex1> Spam filter (too mush many rules) Ex2> Automatic driving(too many rules)

ํ”„๋กœ๊ทธ๋žจ ์ž์ฒด๊ฐ€ ์–ด๋–ค ๋ฐ์ดํ„ฐ๋ฅผ ๋ณด๊ณ  ํŒ๋‹จํ•˜๊ฒŒ ํ•˜์ž!


(supervised/unsupervised) learnin?

  • supervised : learning with labeled examples - ์ •ํ•ด์ง„ ๋ฐ์ดํ„ฐ๋ฅผ ๋ณด๊ณ  ํ•™์Šต

Ex> ๊ฐ•์•„์ง€ ๊ทธ๋ฆผ์„ ๋ช‡์žฅ ์ฃผ๊ณ  ํ•™์Šต ํ›„ ๊ฒฐ๊ณผ๋ฅผ ๋„์ถœ

  • unsupervised : ๋„ˆ๋ฌด ๋‹ค์–‘ํ•œ ๋ฐ์ดํ„ฐ๋กœ ์ธํ•ด ์ •ํ•ด์ง„ ๋ฐ์ดํ„ฐ ํ•™์Šต์ด ๋ถˆ๊ฐ€๋Šฅํ•œ ๊ฒฝ์šฐ - ๋ฐ์ดํ„ฐ๋ฅผ ๋ณด๊ณ  ์ง์ ‘ ํ•™์Šต

Training data set

๋ผ๋ฒจ๋ง ๋œ ํ•™์Šต ๋ฐ์ดํ„ฐ ์…‹์„ ์˜๋ฏธ


Types of supervised learning (supervised learning์˜ ์ข…๋ฅ˜)

  • regression : Ex> ๊ณต๋ถ€ ์‹œ๊ฐ„์— ๋”ฐ๋ฅธ ๋‚ด ์„ฑ์ 
  • binary classification : Ex> ๊ณต๋ถ€ ์‹œ๊ฐ„์— ๋”ฐ๋ฅธ Pass/Fail
  • multi-label classification : Ex> ๊ณต๋ถ€ ์‹œ๊ฐ„์— ๋”ฐ๋ฅธ A, B, C ๋“ฑ๊ธ‰

์˜ˆ๋ฅผ ๋“ค์–ด ์‹œํ—˜ ์‹œ๊ฐ„์— ๋”ฐ๋ฅธ ๊ฒฐ๊ณผ์˜ ํ•™์Šต๋ฐ์ดํ„ฐ๋Š” ์•„๋ž˜์™€ ๊ฐ™์„ ๊ฒƒ ์ด๋‹ค.

์ด๋ฏธ์ง€