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ML/Regression polynomial regression

Posted on 2022-01-10 | In ML

[ML/Regression] λ‹€ν•­νšŒκ·€μ™€ κ³Όμ†Œμ ν•©κ³Ό κ³ΌλŒ€μ ν•©μ˜ 이해

λͺ¨λ“  관계λ₯Ό μ§μ„ μœΌλ‘œ ν‘œν˜„ν•˜λ©΄ μ’‹κ² μ§€λ§Œ 그럴 수 μ—†λ‹€.
2μ°¨ 3μ°¨ 방정식과 같은 λ‹€ν•­μ‹μœΌλ‘œ ν‘œν˜„λ˜λŠ” 것을 λ‹€ν•­νšŒκ·€(polynomial regression)라고 ν•œλ‹€.

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ML/Regression νšŒκ·€ 평가 μ§€ν‘œ

Posted on 2022-01-09 | In ML

[ML/Regression] νšŒκ·€ 평가 μ§€ν‘œ

νšŒκ·€ 평가λ₯Ό μœ„ν•œ μ§€ν‘œλŠ” μ‹€μ œκ°’κ³Ό νšŒκ·€ μ˜ˆμΈ‘κ°’μ˜ 차이λ₯Ό 기반으둜 ν•œ μ§€ν‘œκ°€ 쀑심이닀.
λŒ€λΆ€λΆ„ μž”μ°¨μ˜ μ ˆλŒ€κ°’ 평균과 μ œκ³±μ„ μ΄μš©ν•œλ‹€.
νšŒκ·€μ˜ μ„±λŠ₯을 ν‰κ°€ν•˜λŠ” μ§€ν‘œλŠ” λ‹€μŒκ³Ό κ°™λ‹€.

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ML/Regression LinearRegression

Posted on 2022-01-09 | In ML

[ML/Regression] LinearRegression

  • sklearn의 linear_models λͺ¨λ“ˆμ€ λ‹€μ–‘ν•œ μ„ ν˜•κΈ°λ°˜ νšŒκ·€λ₯Ό 클래슀둜 κ΅¬ν˜„ν•΄ μ œκ³΅ν•œλ‹€. link
  • μ˜€λŠ˜μ€ λ‹€μ–‘ν•œ μ„ ν˜•κΈ°λ°˜ νšŒκ·€λ“€ 쀑 κ·œμ œκ°€ μ μš©λ˜μ§€ μ•ŠλŠ” Linear Regression에 λŒ€ν•΄ μ•Œμ•„λ³΄μž
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ML Regression

Posted on 2022-01-07 | In ML

[ML] Regression

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Python/Greedy BOJ-1715 μΉ΄λ“œμ •λ ¬ν•˜κΈ°

Posted on 2022-01-07 | In CodingTest

[Python/Greedy] BOJ-1715 μΉ΄λ“œμ •λ ¬ν•˜κΈ°

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Python/Greedy BOJ-1339 단어 μˆ˜ν•™

Posted on 2022-01-07 | In CodingTest

[Python/Greedy] BOJ-1339 단어 μˆ˜ν•™

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ML/Ensemble Stacking

Posted on 2022-01-06 | In ML

[ML/Ensemble] Stacking

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ML Ensemble

Posted on 2022-01-06 | In ML

[ML] Ensemble

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ML Undersampling- Oversampling

Posted on 2022-01-05 | In ML

[ML] Undersampling- Oversampling

λ ˆμ΄λΈ”μ΄ λΆˆκ·œν˜•ν•œ 뢄포λ₯Ό κ°€μ§„ 데이터 μ„ΈνŠΈλ₯Ό ν•™μŠ΅ μ‹œν‚¬λ•Œ 예츑 μ„±λŠ₯의 λ¬Έμ œκ°€ λ°œμƒν• μˆ˜ μžˆλ‹€.
μ΄λŠ” 정상 λ ˆμ΄λΈ” 데이터 κ±΄μˆ˜μ— λΉ„ν•΄ 이상 λ ˆμ΄λΈ” 데이터가 λ„ˆλ¬΄ 적기 λ•Œλ¬Έμ΄λ‹€.

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ML/Ensemble LightGBM

Posted on 2022-01-04 | In ML

[ML/Ensemble] LightGBM

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