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Gradient descent, how neural networks learn | Chapter 2, Deep learning Teacherflix 5 Views • 2 years ago

Enjoy these videos? Consider sharing one or two.
Help fund future projects: https://www.patreon.com/3blue1brown
Special thanks to these supporters: http://3b1b.co/nn2-thanks
Written/interactive form of this series: https://www.3blue1brown.com/topics/neural-networks

This video was supported by Amplify Partners.
For any early-stage ML startup founders, Amplify Partners would love to hear from you via 3blue1brown@amplifypartners.com

To learn more, I highly recommend the book by Michael Nielsen
http://neuralnetworksanddeeplearning.com/
The book walks through the code behind the example in these videos, which you can find here:
https://github.com/mnielsen/ne....ural-networks-and-de

MNIST database:
http://yann.lecun.com/exdb/mnist/

Also check out Chris Olah's blog:
http://colah.github.io/
His post on Neural networks and topology is particular beautiful, but honestly all of the stuff there is great.

And if you like that, you'll *love* the publications at distill:
https://distill.pub/

For more videos, Welch Labs also has some great series on machine learning:
https://youtu.be/i8D90DkCLhI
https://youtu.be/bxe2T-V8XRs

"But I've already voraciously consumed Nielsen's, Olah's and Welch's works", I hear you say. Well well, look at you then. That being the case, I might recommend that you continue on with the book "Deep Learning" by Goodfellow, Bengio, and Courville.

Thanks to Lisha Li (@lishali88) for her contributions at the end, and for letting me pick her brain so much about the material. Here are the articles she referenced at the end:
https://arxiv.org/abs/1611.03530
https://arxiv.org/abs/1706.05394
https://arxiv.org/abs/1412.0233

Music by Vincent Rubinetti:
https://vincerubinetti.bandcam....p.com/album/the-musi

-------------------
Video timeline
0:00 - Introduction
0:30 - Recap
1:49 - Using training data
3:01 - Cost functions
6:55 - Gradient descent
11:18 - More on gradient vectors
12:19 - Gradient descent recap
13:01 - Analyzing the network
16:37 - Learning more
17:38 - Lisha Li interview
19:58 - Closing thoughts
------------------

3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that).

If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended

Various social media stuffs:
Website: https://www.3blue1brown.com
Twitter: https://twitter.com/3Blue1Brown
Patreon: https://patreon.com/3blue1brown
Facebook: https://www.facebook.com/3blue1brown
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Seven Continents Song Teacherflix 6 Views • 2 years ago

A song to help kids learn the 7 continents in order from largest to smallest.
Subscribe! ➜ https://www.youtube.com/c/hops....cotchsongs?sub_confi
Visit the Hopscotch Shop! ➜ https://www.hopscotchsongs.com/shop

Download the song ➜ https://www.hopscotchsongs.com/shop/seven-continents-mp3
Listen on:
Spotify ➜ https://open.spotify.com/album..../2qaZl3G4NFQws4Yqevy
Apple Music ➜ https://music.apple.com/us/album/seven-continents-single/1270466307?uo=4&app=apple+music
Amazon ➜ https://www.amazon.com/Seven-Continents/dp/B087QQBX3G/ref=sr_1_2?dchild=1&keywords=seven+continents+hopscotch&qid=1588266487&sr=8-2
Deezer ➜ https://www.deezer.com/album/46120392
Tidal ➜ http://www.tidal.com/album/77359346
Napster ➜ https://us.napster.com/artist/....hopscotch-songs/albu

*NEW* Ukulele Tabs ➜ https://www.hopscotchsongs.com/shop/seven-continents-ukulele
Piano/Vocal/Guitar sheet ➜ https://www.hopscotchsongs.com/shop/seven-continents-pianovocalguitar-sheet
Lead sheet ➜ https://www.hopscotchsongs.com/shop/seven-continents-lead-sheet
Karaoke/backing track ➜ https://www.hopscotchsongs.com/shop/seven-continents-backing-track

Oceania Version ➜ https://youtu.be/xzWdvq_veUM
Australasia Version ➜ https://www.youtube.com/watch?v=35V2dm7JIwE

Song by Joanna and Matt Pace
Video animated by Steven Freebairn: http://www.freebreezy.com
Continent voices:
Asia & Europe: Matt Pace
Africa: Evette Dutton (https://evettedutton.com)
North America: Jessica Pace (https://www.TheHooverJam.com)
South America: Wesley Monahan (http://suitupsoldier.com)
Antarctica: Elena Dutton
Australia: the Cook kids
Title animation by Brenden Nelson: https://www.brendennelson.com

Follow Hopscotch!
Twitter: https://twitter.com/hopscotchsongs
Facebook: https://www.facebook.com/hopscotchsongs
Instagram: https://www.instagram.com/hopscotchsongs

Lyrics:
The world is split up into continents, there are seven in all
And if you get the gist, we’re gonna make a list from biggest to small:

They are:
Asia, Africa, North and South America
Antarctica, Europe, and finally Australia
Asia, Africa, North and South America
Antarctica, Europe, and finally Australia

Hey! My name is Asia,
And more than half of the world lives here, but, whatever

And I am Africa, with desert for miles
And my Nile is the longest river

North America! Start down in Panama,
Wide open spaces, all the way to Canada

I'm South America with animals galore,
Where the rainforest grows ‘cause the rain really pours

I’m Antarctica, and I’m totally ice

And I’m Europe. You’re welcome...
For the pasta, pizza, waffles, and fries

I am Australia, some call me Oceania,
I got a lot of islands, too many to explain to ya

We are
Asia, Africa, North and South America
Antarctica, Europe, and finally Australia

Copyright © 2017 Hopscotch

#SevenContinents #7Continents #HopscotchSongs