gradientDescent.m Gradient Descent Implementation - Machine Learning

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This is the Programming assignment 1 from Andrew Ngs Machine Learning course.

  1. Aladdin Persson
  2. Gradient Descent
  3. Machine Learning
  4. Andrew Ng
  5. Coursera
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Комментарии
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The fact that you wrote this "by hand" using a mouse = respect. Good video Dino!

ozzyfromspace
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Again, thank you! This is extremely helpful! I was about to give up before I stumbled over your videos. Great stuff!

emcpadden
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Three years after its release and this is the ONLY video which helped me with the vectorizatin part. THANK YOU MAN!!!

kushpeter
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This is exactly what I was looking for. Thanks for showing the vector math, and the subsequent code. Brilliant stuff.

advaitathreya
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Every time you do a transpose of a matrix, it takes time. A faster implementation of ((h-y)' * X)' is X' * (h-y), which is one less transposition. For a real-world situation, this might help. In general, A' * B' = (B * A)' ☺️. Well presented video!

ozzyfromspace
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DUde this is amazing! I have been breaking my head understanding how to vectorize this part! Thanks a lot!

cristianavalos
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thx god, finally found someone can explain how the function works with plain text, appreciated man

WOKfucboi
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Thanks a lot for making this explainer video! I was having a hard time trying to tear the vectorized formula apart . This helped a ton!

lividpudding
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Brilliant. Thanks for making it very easy to understand.

easy_learner
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Thank you so much for these videos. I'm trying to transition from music to working with data and machine learning, so it's been rough. Thanks for helping me learn more about the content I'm exploring!!

MattCitrano
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Thank you so much, I was very confused about each terms, and you explain it really well.

zhangjie
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Great man! Really needed this! Thanks ...Best Explanation of this in Youtube

pranavgandhi
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Your video saved me from droppping out of the course, thank you so much :)

Terran
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thank you I was struggling so hard to figure this out, great videos

samarthrao
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you are AMAZING! thank youuu i had no idea how to even begin tackling this exercise and now I even have some ideas for the next ones.. you're the best (=

NicoleQuimper
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Thanks alot man, I spent so long on this thinking what have I done wrong...until realising that h needs to be included in the for loop.

kenbinner
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The One Video explains alot to me, thankyou...I got that how to convert equations into vectorized code

ribhusengupta
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Thank you man, I was forgetting to take the transpose of (h - y).

pragyan
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hii I did not understand how in the theta part (6:53) how was X a 97x2 in the previous part it was 97x1

almostworthy
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Hi, what is the use of J_history in the method gradientdescent.m ?

anshulanilgaur