
But what is cross-entropy? | Compression is Intelligence Part 2
Where the loss function for training LLMs comes from.
Job opportunities aligned to this audience: https://3b1b.co/talent
Early views and other perks for supporters: https://3b1b.co/support
Home page: https://www.3blue1brown.com
Manim animations by Aaron Gostein and Grant Sanderson
NanoGPT animation by Clayton Rabideau
3d black-box model by Paul Dancstep
Music by Vince Rubinetti
Timestamps
0:00 - Language trees and zipping
3:02 - Recap optimal codes
5:20 - Defining cross-entropy
8:26 - Intuition and examples
12:59 - Application to language trees
14:55 - Pre-training LLMs
20:38 - What makes this loss function best?
26:13 - Distillation
30:12 - 3b1b Talent
31:35 - KL Divergence
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These animations are largely made using a custom Python library, manim. See the FAQ comments here:
https://3b1b.co/faq#manim
Music by Vincent Rubinetti.
https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown
https://open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u
------------------
3blue1brown is a channel about animating math, in all senses of the word animate. If you're reading the bottom of a video description, I'm guessing you're more interested than the average viewer in lessons here. It would mean a lot to me if you chose to stay up to date on new ones, either by subscribing here on YouTube or otherwise following on whichever platform below you check most regularly.
Mailing list: https://3blue1brown.substack.com
Twitter: https://twitter.com/3blue1brown
Bluesky: https://bsky.app/profile/3blue1brown.com
Instagram: https://www.instagram.com/3blue1brown
Reddit: https://www.reddit.com/r/3blue1brown
Facebook: https://www.facebook.com/3blue1brown
Patreon: https://patreon.com/3blue1brown
Website: https://www.3blue1brown.com
Job opportunities aligned to this audience: https://3b1b.co/talent
Early views and other perks for supporters: https://3b1b.co/support
Home page: https://www.3blue1brown.com
Manim animations by Aaron Gostein and Grant Sanderson
NanoGPT animation by Clayton Rabideau
3d black-box model by Paul Dancstep
Music by Vince Rubinetti
Timestamps
0:00 - Language trees and zipping
3:02 - Recap optimal codes
5:20 - Defining cross-entropy
8:26 - Intuition and examples
12:59 - Application to language trees
14:55 - Pre-training LLMs
20:38 - What makes this loss function best?
26:13 - Distillation
30:12 - 3b1b Talent
31:35 - KL Divergence
------------------
These animations are largely made using a custom Python library, manim. See the FAQ comments here:
https://3b1b.co/faq#manim
Music by Vincent Rubinetti.
https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown
https://open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u
------------------
3blue1brown is a channel about animating math, in all senses of the word animate. If you're reading the bottom of a video description, I'm guessing you're more interested than the average viewer in lessons here. It would mean a lot to me if you chose to stay up to date on new ones, either by subscribing here on YouTube or otherwise following on whichever platform below you check most regularly.
Mailing list: https://3blue1brown.substack.com
Twitter: https://twitter.com/3blue1brown
Bluesky: https://bsky.app/profile/3blue1brown.com
Instagram: https://www.instagram.com/3blue1brown
Reddit: https://www.reddit.com/r/3blue1brown
Facebook: https://www.facebook.com/3blue1brown
Patreon: https://patreon.com/3blue1brown
Website: https://www.3blue1brown.com
3Blue1Brown
3blue1brown, by Grant Sanderson, is some combination of math and entertainment, depending on your disposition. The goal is for explanations to be driven by animations and for difficult problems to be made simple with changes in perspective.
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