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 Chess game and Lagrange Multiplier scenes by Nishad Deulkar 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 lang