[PY 0201] ไบบๅทฅ็ฅ่ฝใฎใใใฎPythonใฌใใซ1
Pythonใฎๅบๆฌ็ใชๆๆณใซใคใใฆใๅคใใฎๆผ็ฟใ่กใ่ฌๅบงใงใใ Pythonใฎๆๆณใจๅใใใฆใๆฉๆขฐๅญฆ็ฟใใใฃใผใใฉใผใใณใฐใซ็จใใใใๅฎ่ทตๆผ็ฟใ่กใ่ฌๅบงใงใใ
ๅ่ฌ็ 255ๅ
้ฃๆๅบฆ ๅ ฅ้
ๅ่ฌๆ้ ็กๅถ้
ใ็ฅใใ
9 ไปถ
ใใใซใกใฏๅ่ฌ็ใฎ็ใใ๐
ๅบ็คใใๅฐ้ใฌใใซใพใงไฝ็ณป็ใซใใฃใผใใฉใผใใณใฐใๆฑใ[็ฅ็ตๆคใฎใใฃใผใใฉใผใใณใฐ]ๅ็ช็ฎใฎ่ฌ็พฉใงใใ[Gradient-based Linear Regression (2)]ใใชใผใใณใใใพใใใฎใงใ็ฅใใใใพใ๏ผ
๏ผ่ฌ็พฉใชใณใฏ๏ผhttps://inf.run/ymv1P๏ผ
ๆฌGradient-based Linear Regression (1)ใง็ดๆฅๅฎ่ฃ ใใใณใผใใใPyTorchใฎๆฉ่ฝใๅฉ็จใใฆๅฎๆฆใณใผใใจใใฆๅฎ่ฃ ใใๆนๆณใๅญฆใถ่ฌ็พฉใงใใใพใใใใผใฟๅๅฆ็ใฎๅฟ ่ฆๆงใ็่ซใๅญฆ็ฟใซไธใใๅฝฑ้ฟใ็่ซ็ใซๅญฆใณใๅฎๆฆใณใผใใงๅฎ่ฃ ใใ่ฌ็พฉใงใใ
็งใฎAll About AIใซใชใญใฅใฉใ ใซๅพใฃใฆๆฅใใใๆนใฏใใชใผใใณๅฒๅผๆ้ใๅฉ็จใใใใจ่ฏใใจๆใใพใ๐
่ฟฝๅ ใงๆฅ้ฑไธญใซๅพ็ถ่ฌ็พฉใงใใ[Gradient-based Linear Regression (3)]ใใชใผใใณไบๅฎใงใใ
ไธ็ทใซไธ็ๆธๅฝใใฃใผใใฉใผใใณใฐใฎไธ็ใไฝใไธใใฆใใใใใใใใคใๆๅใๅฐฝใใใพใ๏ผ
ใใใใจใใใใใพใใ
็ฅ็ตๆคใใ
ใใใซใกใฏๅ่ฌ็ใฎ็ใใ๐
ๅบ็คใใๅฐ้ใฌใใซใพใงไฝ็ณป็ใซใใฃใผใใฉใผใใณใฐใๆฑใ[์ ๊ฒฝ์ใฎใใฃใผใใฉใผใใณใฐ]ใฎ3็ช็ฎใฎ่ฌ็พฉใงใใ[Gradient-based Linear Regression (1)]ใใชใผใใณใใใพใใใฎใงใ็ฅใใใใพใ๏ผ
(่ฌ็พฉใชใณใฏ: https://inf.run/KgQoQ)
ๆฌ่ฌ็พฉใฏไปฅๅๅ ฌ้ใใใ[Gradient Descent]ใๅบใซใๆใใทใณใใซใชใขใใซใใใผใฟใซๅญฆ็ฟใใใ้็จใๆฑใใพใใ
็พๅจใชใผใใณ่จๅฟตๅฒๅผไธญใงใใฎใงใ็งใฎใซใชใญใฅใฉใ ใซๆฒฟใฃใฆๅญฆ็ฟใใใๆนใฏใใใฎๆ้ใๅฉ็จใใฆๅ่ฌ็ณใ่พผใฟใใใฆใใ ใใ๐
่ฟฝๅ ใงไป้ฑไธญใซๅพ็ถ่ฌ็พฉใงใใ[Gradient-based Linear Regression (2)]ใใชใผใใณไบๅฎใงใใ
ไธ็ทใซไธ็ๆธๅฝใใฃใผใใฉใผใใณใฐใฎไธ็ใไฝใไธใใฆใใใใใใๅธธใซๆๅใๅฐฝใใใพใ๏ผ
ใใใใจใใใใใพใใ
็ฅ็ตๆคใใ
ใใใซใกใฏๅ่ฌ็ใฎ็ใใ๐
ๅบ็คใใๅฐ้็ใชใฌใใซใพใงไฝ็ณป็ใซใใฃใผใใฉใผใใณใฐใๆฑใ[์ ๊ฒฝ์ใฎใใฃใผใใฉใผใใณใฐ]ใฎไบ็ช็ฎใฎ่ฌ็พฉใงใใ[Gradient Descent]ใใชใผใใณใใใพใใใฎใงใ็ฅใใใใพใ๏ผ
(่ฌ็พฉใชใณใฏ: https://inf.run/bK5xe)
ใใฎ่ฌ็พฉใฏไปฅๅๅ ฌ้ใใใ[Gradients and PyTorch's Autograd]ใๅบ็คใจใใฆใใใฃใผใใฉใผใใณใฐใฎๆใๆ ธๅฟ็ใชๅญฆ็ฟใขใซใดใชใบใ ใงใใ
gradient descentใ้ไธญ็ใซๆฑใใพใใ
็พๅจใชใผใใณ่จๅฟตๅฒๅผไธญใงใใฎใงใ็งใฎใซใชใญใฅใฉใ ใซๅพใฃใฆใใ ใใๆนใฏใใใฎๆ้ใๅฉ็จใใฆๅ่ฌ็ณ่ซใใ้กใใใพใ๐
ใใใซไป้ฑๆซใซๆฌกใฎ่ฌ็พฉใงใใ[Gradient-based Linear Regression (1)]ใใชใผใใณใใใไบๅฎใงใใ
ไธ็ทใซไธ็ๆธๅฝใใฃใผใใฉใผใใณใฐใฎไธ็ใไฝใไธใใฆใใใใใใใใคใๆๅใๅฐฝใใใพใ๏ผ
ใใใใจใใใใใพใใ
็ฅ็ตๆคใใ
ใใใซใกใฏๅ่ฌ็ใฎ็ใใ๏ผ
ๆฌๆฅใใๆฌๆ ผ็ใชใใฃใผใใฉใผใใณใฐ่ฌ็พฉใซใชใญใฅใฉใ ใ้ๅงใใใพใใฎใงใๆกๅ ใใใใพใ๐
็งใ็ดๆฅไฝๆใใ[็ฅ็ตๆคใฎใใฃใผใใฉใผใใณใฐ(ShinDL)]ใซใชใญใฅใฉใ ใฏใใใฃใผใใฉใผใใณใฐใๅบ็คใใๅฎ้ใฎ่ซๆใฌใใซใฎ่ฌ็พฉใพใงไฝ็ณป็ใซๆฑใใ
ใใฃใผใใฉใผใใณใฐๆ่กใ็ดๆฅใในใฆๅฎ่ฃ ใใฆใฟใชใใใๅฎ็งใซใใฎๆ่กใ็่งฃใใใใจใ็ฎๆจใจใใใซใชใญใฅใฉใ ใงใ๏ผ
ใพใใใใฃใผใใฉใผใใณใฐใฎๅ้ใ้ๅธธใซๅบใใใใๅคงใใชใใชใฅใผใ ใฎ่ฌ็พฉใใใใขใธใฅใผใซๅใใฆ็นๅฎใฎใใใใฏใๆฑใ่ฌ็พฉใงๆงๆใใใพใใ
ไปๅใชใผใใณใใ่ฌ็พฉใฏ[็ฅ็ตๆคใฎใใฃใผใใฉใผใใณใฐ]ใซใชใญใฅใฉใ ใฎๆๅใฎ่ฌ็พฉใจใใฆใใใฃใผใใฉใผใใณใฐใๆญฃใใ็่งฃใใใใใซ
ๅฟ ้ ใฎๆฐๅญฆ็ๅบ็คใงใใใๅพฎๅใใจPyTorchใใฌใผใ ใฏใผใฏใฎautogradๆ่กใๅญฆใถ่ฌ็พฉใงใใ
[ๅพ้ ใจPyTorchใฎAutograd]ใงใใ
(่ฌ็พฉใชใณใฏ: https://inf.run/wZoxE)
ไปๅพใฏๅบๆฌ็ใชใใฃใผใใฉใผใใณใฐๆ่กใ ใใงใชใใใใฃใผใใฉใผใใณใฐ่ซๆใๅบใซๅฎๆฆใใญใธใงใฏใใพใง้ฒ่กใใไบๅฎใงใใฎใงใ
ใใฃใผใใฉใผใใณใฐๅญฆ็ฟใๆบๅใใใฆใใๆนใฏใไปๅใฎ่ฌ็พฉใใไธๆญฉใใคใซใชใญใฅใฉใ ใซๆฒฟใฃใฆ้ฒใใฆใใใ ใใใฐใจๆใใพใ๐
ใใใซๆฅ้ฑใ2็ช็ฎใฎใใฃใผใใฉใผใใณใฐ่ฌ็พฉใงใใ[Gradient Descent]่ฌ็พฉใใชใผใใณไบๅฎใงใใฎใงใใๅ่ใใ ใใ๏ผ
ไปๅพใใใ่ฏใ่ฌ็พฉใๆไพใงใใใใๆๅใๅฐฝใใใพใ๏ผ
ใใใใจใใใใใพใใ
็ฅ็ตๆคใใ
่ฌ็พฉใชใผใใณๆกๅ
ใใใซใกใฏ๏ผ็ฅ็ตๅผ่ฌๅธซใงใ๐
ๆฅใ2025ๅนดไธๅนดใฎ็ใใใ็ๆงใๆใฟใฎใใจใใ้กใใใพใใ
ไปๆฅใฎใใผใฟใๆฑใไบบใซใจใฃใฆๆใ้่ฆใชใฉใคใใฉใชใงใใMatplotlib่ฌ็พฉใๆฑใ่ฌ็พฉใใชใผใใณใใพใใ๏ผ
่ฌ็พฉใฎใฟใคใใซใฏ[ใใผใฟๅฏ่ฆๅใฎใใใฎPython - Matplotlib Master Class]ใงใใ
ใใใใ็งใฎ่ฌ็พฉใ ใใงใชใใใใผใฟใตใคใจใณในใๅญฆใใงใใ ใใๆนใ ใซใจใฃใฆๅฟ ้ ใชใฉใคใใฉใชใงใใใ ใใซใ
ใชใผใใณๅฒๅผๆ้ใๅฉ็จใใฆๅ่ฌ็ณใ่พผใฟใใๅงใใใพใใ๏ผ
ใคใใณใๆกๅ
ใใฎๆฌกใฎ่ฌ็พฉใงๆฌๆ ผ็ใซใใฃใผใใฉใผใใณใฐ่ฌ็พฉใๅงใใ่จ็ปใงใใ
ไปใฎใใฃใผใใฉใผใใณใฐๆ่ฒใณใณใใณใใจๆฏ่ผใงใใชใๅ ๅฎนใไธ็ๆธๅฝๆบๅใใฆใใพใใ
ใใ ใใใใฎใใฃใผใใฉใผใใณใฐ่ฌ็พฉใฎๅ ๅฎนใใในใฆ็ใใใๆใฃใฆใใใใใซใฏ
Pythonใฎๅบ็คๆๆณใ ใใงใชใใNumPyใจMatplotlibใฎๅบ็คใๅผทใใชใใใฐใชใใพใใใ
ใใชใใใใฃใผใใฉใผใใณใฐใฎๅฐ้ๅฎถใซใชใ้็จใๅฟๆดใใใใใซใๆฌกใฎใคใใณใใ่กใใพใ๐
2025ๅนด2ๆ28ๆฅใพใงใซ[NumPy Master Class]ใ[Matplotlib Master Class]ใใในใฆ้ ๅผตใๆนใธ
ใใฃใผใใฉใผใใณใฐใซใชใญใฅใฉใ ใฎๆๅใฎ่ฌ็พฉใงใใ[Gradient Descent Algorithm]ใฎโญ๏ธ50 ๏ผ ๅฒๅผใฏใผใใณโญ๏ธใใใฌใผใณใใใพใใๆฌใคใใณใใฏๆฉๆขฐๅญฆ็ฟใใใฃใผใใฉใผใใณใฐใๅๅผทใใใๆนใๅคๅฐใซใผใธใฅใซๆใใใใๅบๆฌๅบใๅบใใ้็จใฎ
ใใๆฐใๅฐใใงใๅทฎใไธใใใใใซ้ฒใใพใใ
ใใฒใฟใใชใคใใณใ้ๆใใฆใใ ใใ๐
ๅๅ ๆนๆณ
ๆฌกใฎGoogleใใฉใผใ ใ็ขบ่ชใใฆใใ ใใใ
https://forms.gle/JVGE4M1scVeeFXPq6
Outroใ
ไปๅพไฝใใใใใฃใผใใฉใผใใณใฐ่ฌ็พฉใฏใๆฌกใฎใซใชใญใฅใฉใ ใๅ่ใซใใฆใใ ใใ๏ผ
https://miro.com/app/board/uXjVNJ8PZSs=/
ใกใชใฟใซใ็พๅจใฎๆฆ็ฅ็ใชใใฃใผใใฉใผใใณใฐๅบ็คใฎ่จญ่จใฏ็ตใใฃใ็ถๆ ใงใใใ
object detectionใimage segmentationใtransformerใชใฉ
่ฉณ็ดฐใชๅ ๅฎนใ็ด ๆฉใๆบๅใใใใๅชๅใใพใใ๏ผ
ใฟใใชใงใใกใคใใฃใณใฐใใฆใใ ใใ๐
ใใฅใผใฉใซใใชใผใ
ใใใซใกใฏๅ่ฌ็ใฎ็ใใ๏ผ
ๆฅ้ฑไธญใซใๆฉๆขฐๅญฆ็ฟใใใฃใผใใฉใผใใณใฐใๅญฆใถใใใฎๆใ้่ฆใชใฉใคใใฉใชใงใใใใใณใใค๏ผNumPy๏ผใใ้ไธญ็ใซๅญฆใถใใใณใใกใคใในใฟใผใฏใฉในใ่ฌ็พฉใใชใผใใณใใไบๅฎใงใใ
ใใใซๅใใใฆ่ฌ็พฉใชใผใใณ่จๅฟตใงๅ่ฌ่ฉใคใใณใใ้ฒใใใ
็พๅจใคใณใใฉใซใชใผใใณใใฆใใ็งใฎใในใฆใฎ่ฌ็พฉๅ่ฌ็ใฎๅฏพ่ฑกใจใใฆใไธๅฏงใชๅ่ฌ่ฉใๆฎใใฆใใใ2ๅใๆฝ้ธใใ่ฉฒๅฝ่ฌ็พฉ๏ผ45000ใฆใฉใณ็ธๅฝ๏ผใฎ็กๆใฏใผใใณใ็บ่กใใใใพใใ
๏ผใใ ใใใขใใฅใผใธใณใฐใ้ฒใใใใซ30๏ผ ไปฅไธใฎใ้ฒๅบฆ็ใใ้ๆใใไธใงไฝๆใ้กใ่ดใใพใ๏ผ๏ผ
ๅ่ฌๅพใๆฌกใฎGoogleใใฉใผใ ใซใคใณใใฉใณIDใจ็กๆใฏใผใใณใๅใๅใEใกใผใซใขใใฌในใๅ ฅๅใใฆใใ ใใใ
https://forms.gle/RcHcsbFrPAPYayAo6
ๅฝ้ธ่ ใฏๆฅ้ฑใฎ่ฌ็พฉใใชใผใใณใใ็ฟๆฅ็บ่กจใใพใ๐
ใใคใ็งใฎ่ฌ็พฉใไฟกใใฆ้ ๅผตใฃใฆใใใๅ่ฌ็ใฎ็ใใใซๅฟใใๆ่ฌใใพใใ
ใใใใใ้ ๅผตใฃใฆ่ฏใ่ฌ็พฉใไฝใใใจๅชๅใใพใ๏ผ
ๆณจ๏ผ็พๅจใชใผใใณใใฆใใ่ฌ็พฉใฎใชในใ
ๆฐๅญฆใใไบบ้กใ่ช็ฑใซใใ๏ผๅบ็คไปฃๆฐๅญฆ็ทจ๏ผ
ๆฐๅญฆใใไบบ้กใ่ช็ฑใซใใ(ๅพฎ็ฉๅๅญฆ Part.I) - ๅพฎๅ
ๆฐๅญฆใใไบบ้กใ่ช็ฑใซใใชใใ(็ทๅฝขไปฃๆฐๅญฆ Part.I) - ใใฏใใซๅนพไฝๅญฆ
ๅผใไฝๆใใใใใฎLaTeXใใฅใผใใชใขใซ
ไบบๅทฅ็ฅ่ฝใฎใใใฎPythonใฌใใซ1
ไบบๅทฅ็ฅ่ฝใฎใใใฎPythonใฌใใซ2
Pythonใใใใฐใฎๅบ็ค
ไบบๅทฅ็ฅ่ฝใฎใใใฎPythonใฌใใซ3 - ้ขๆฐ
ไบบๅทฅ็ฅ่ฝใฎใใใฎPythonใฌใใซ4 - ใชใใธใงใฏใใจใฏใฉใน
Pythonไปฎๆณ็ฐๅขใจใขใใณใณใ
๏ฝฅ
ไฟฎๆญฃๆธใฟ
sum([u_el** 0.5 for u_el in u])**0.5
ใง0.5ใ2ใซๅคๆดใใ
sum([u_el** 2 for u_el in u])**0.5
ใฎใใใซๆธใๅฟ ่ฆใใใใพใใ
ใใใซใกใฏๅ่ฌ็ใฎ็ใใ๏ผ
ใคใใซ็งใๆฌๅฝใซใใผใซใใใใใใใ็ทๅฝขไปฃๆฐๅญฆ่ฌ็พฉใฎๆๅใฎ่ฌ็พฉใงใใ[ใใฏใใซๅนพไฝๅญฆ]่ฌ็พฉใใชใผใใณใใใพใใ๐
่ฉฒๅฝ่ฌ็พฉใฏ่ฉฒๅฝใชใณใฏใใ็ขบ่ชใงใใพใ๏ผ https://inf.run/cNPJa
ไปๅพใๆฌกใฎ็ทๅฝขไปฃๆฐๅญฆ่ฌ็พฉใใงใใใ ใๆฉใ็ซใกไธใใไบๅฎใ ใใ๏ผ1ใถๆไบๆณ๏ผใ็ใใใไธ็ทใซๆฉใ็ทๅฝขไปฃๆฐๅญฆใๅ ้ ใใฆใปใใใงใ๏ฝ๏ผ
็พๅจใชใผใใณๅฒๅผๆ้ใงใใฎใงใๅ่ฌ็ใฎ็ใใใฏใชใผใใณๅฒๅผใๅฉ็จใใฆๅ่ฌใใใใจใใใใใใใพใใ
ใงใฏใไปๅพ็งใๆ้ซใฎๆฐๅญฆ่ฌ็พฉใๆไพใงใใใใใซ้ ๅผตใใพใใ
ใใใใจใใใใใพใใ
ใใฅใผใฉใซใใชใผใ