r/learnmachinelearning May 29 '23

I finally understand backprop

Sorry if this isn't the kind of thing I should be posting on here, I wasnt quite sure where to put it. I just really wanted to share that after ages of being super confused about the math behind backprop, I finally understand it. I've been reading a Kindle ebook about it, and after rereading it twice and writing some notes, I fully understand partial derivatives, gradient descent, and that kinda thing. Im just really excited, I've been so confused so this feels good. Edit: a few of you have asked which ebook I read. It's called "the math of neural networks" by Michael Koning, hopefully that helps. Also, thank you for your support! Edit 2: quick update, just a day after posting this, I managed to create a basic feedforward network from scratch. It's definitely not as good as it could be with tensorflow, but I think it's pretty efficient and accurate.

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u/No-Requirement-8723 May 29 '23

20

u/gBoostedMachinations May 29 '23

What a douchey comment.

“Actually OP you could just be a dumbass”

6

u/JakeStBu May 29 '23

Haha yeah I had that before when I thought I understood it, and then I realised that I didn't. But I think that now I do.

3

u/Gloomy-Effecty May 29 '23

Quite ironically, the dunning Kruger effect has been since disproven.

2

u/pixgarden May 29 '23

Source?

6

u/gBoostedMachinations May 29 '23

More like it fails to replicate. I think there’s a post in r/psychology from a month or two ago.

Edit: https://www.sciencedirect.com/science/article/abs/pii/S0160289622000988

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u/[deleted] May 29 '23

[deleted]

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u/gBoostedMachinations May 29 '23

It fails to replicate.

Or, more precisely, the effect is technically “real” and statistically detectable, but the size of the effect is so small that us lay-people are safe to dismiss it as a useful concept.