๐Ÿ“š ์Šคํ„ฐ๋””/[์—ฌ๋ฆ„๋ฐฉํ•™] ์Šคํ„ฐ๋”” ๊ณผ์ œ

[์—ฌ๋ฆ„๋ฐฉํ•™] 4์ฐจ์‹œ ๋จธ์‹ ๋Ÿฌ๋‹ ๋ณต์Šต๊ณผ์ œ

๋ ค์šฐ 2023. 8. 11. 19:30

๐Ÿ”‘ ์ œ์ถœ ๋ฐฉ์‹

ipynb ํŒŒ์ผ์„ ๋ฉ”์ผ๋กœ ์ œ์ถœ (dsob2021swu@gmail.com)

 

๐Ÿ”‘ ์ œ์ถœ ์–‘์‹

[์ด๋ฆ„] 4์ฐจ์‹œ ๋ณต์Šต๊ณผ์ œ

[์ด๋ฆ„] 4์ฐจ์‹œ ๋ณต์Šต๊ณผ์ œ.ipynb

 

๐Ÿ”‘ ๊ณผ์ œ ํ’€์ด ๋ฐฉ์‹

์ฃผํ”ผํ„ฐ ๋…ธํŠธ๋ถ ํ˜น์€ ์ฝ”๋žฉ์„ ์ด์šฉํ•˜์—ฌ ์•„๋ž˜์˜ ๋ฌธ์ œ๋“ค์„ ํ•˜๋‚˜ํ•˜๋‚˜ ํ’€์–ด๋ณธ๋‹ค.

์ฝ”๋“œ๋ฅผ ์ž‘์„ฑํ•˜๊ณ  ์ฃผ์„์„ ์ถฉ๋ถ„ํžˆ ๋‹ฌ์•„์ฃผ์–ด์•ผ ํ•˜๋ฉฐ, markdown๋„ ์ด์šฉํ•˜์—ฌ ๋ณธ์ธ์˜ ์ƒ๊ฐ์„ ์ž˜ ํ‘œํ˜„ํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•œ๋‹ค.


๐Ÿ”‘ ๊ณผ์ œ ๋‚ด์šฉ

์•„๋ž˜์˜ ๋งํฌ๋Š” sklearn์—์„œ ์ œ๊ณตํ•˜๊ณ ์žˆ๋Š” ๋ฐ์ดํ„ฐ์…‹์ž…๋‹ˆ๋‹ค.

https://scikit-learn.org/stable/datasets/toy_dataset.html

 

7.1. Toy datasets

scikit-learn comes with a few small standard datasets that do not require to download any file from some external website. They can be loaded using the following functions: These datasets are usefu...

scikit-learn.org

 

1. ์œ„์˜ ๋ฐ์ดํ„ฐ์…‹ ์ค‘ ๋ง˜์—๋“œ๋Š” ๊ฒƒ์„ ๊ณจ๋ผ ๋ถˆ๋Ÿฌ์˜ต๋‹ˆ๋‹ค.

 

2. ํ•ด๋‹น ๋ฐ์ดํ„ฐ์…‹์€ supervised, unsupervised, reinforcement learning ์ค‘ ์–ด๋–ค ํ•™์Šต์— ์ ์šฉ ๊ฐ€๋Šฅํ•œ ๋ฐ์ดํ„ฐ์ธ์ง€ ์•Œ์•„๋ด…์‹œ๋‹ค.

 

3. ์–ด๋–ค ํ•™์Šต์— ์ ์šฉ์ด ๊ฐ€๋Šฅํ•œ์ง€ ์•Œ์•„๋ณด์•˜๋‚˜์š”? ๊ทธ๋ ‡๋‹ค๋ฉด class(target = label)์™€ features๋ฅผ ํ™•์ธํ•ด๋ด…์‹œ๋‹ค.

์—ฐ์†ํ˜•(continuous)์ธ๊ฐ€์š”? ์ด์‚ฐํ˜•(discrete)์ธ๊ฐ€์š”?

 

4. ๊ทธ๋ฆฌ๊ณ  ์ด ๋ฐ์ดํ„ฐ๋Š” ์–ด๋–ค ๋ชจ๋ธ์— ์ ์šฉํ•  ์ˆ˜ ์žˆ๋Š”์ง€ ์•Œ์•„๋ด…์‹œ๋‹ค.

e.g. clustering, regression, classification ...๋“ฑ๋“ฑ

 

5. ๋ถˆ๋Ÿฌ์˜จ ๋ฐ์ดํ„ฐ์˜ class(target = label)๋ฅผ ํ™•์ธํ•ด๋ด…์‹œ๋‹ค.

binary class ์ธ๊ฐ€์š”? multi class ์ธ๊ฐ€์š”? ์—ฐ์†ํ˜•์ด๋ผ binary๋‚˜ multi class๋ผ๊ณ  ๋งํ•  ์ˆ˜ ์—†๋‚˜์š”?

 

6. ํ•ด๋‹น ๋ฐ์ดํ„ฐ๋ฅผ ํ•™์Šต์‹œํ‚ฌ ๊ตฌ์ฒด์ ์ธ ๋ชจ๋ธ์„ ๋ถˆ๋Ÿฌ์™€๋ด…์‹œ๋‹ค. ์•„๋ฌด๊ฑฐ๋‚˜ ๊ดœ์ฐฎ์Šต๋‹ˆ๋‹ค. ๋‹ค๋งŒ 3, 4๋ฒˆ์˜ ๋‹ต๊ณผ ๊ด€๋ จ์žˆ๋Š” ๋ชจ๋ธ์„ ๋ถˆ๋Ÿฌ์˜ค์„ธ์š”.

e.g. Unsupervised learning์—์„œ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋Š” ๋ฐ์ดํ„ฐ์ด๋‹ˆ Unsupervised learning ๋ชจ๋ธ๋“ค ์ค‘ K-means clustering ๋ชจ๋ธ์„ ์‚ฌ์šฉํ•ด์•ผ๊ฒ ๊ตฐ!

 

7. ๋ชจ๋ธ์„ ๋ถˆ๋Ÿฌ์™€ ํ•™์Šต์‹œ์ผœ๋ณด์•˜๋‚˜์š”? ์‚ฌ์‹ค ์ด๊ฒŒ ์ค‘์š”ํ•œ ๊ฒƒ์ด ์•„๋‹™๋‹ˆ๋‹ค. ๋ถˆ๋Ÿฌ์˜จ ๋ชจ๋ธ๊ณผ ๊ด€๋ จ์žˆ๋Š” ํ‰๊ฐ€๋ฐฉ์‹๋“ค์„ ์ด์šฉํ•ด ๊ฒฐ๊ณผ๋ฅผ ํ‰๊ฐ€ํ•ด๋ณด์„ธ์š”.

 

8. ๊ฒฐ๊ณผ๊ฐ’์ด ์–ด๋–ค๊ฐ€์š”? ํ•ด์„ํ•ด๋ด…์‹œ๋‹ค.