Naslednji
But what is cross-entropy? | Compression is Intelligence Part 2 34 min 
Weeds - The MILF Next Door + Silas (S4E6) | Movieclips 2 min 
这么会挑对手啊？天哭道友 #凡人修仙传 #国漫 #shorts #donghua #madebybilibili【加入会员专享最新集】 1 min 
Money Follows My Brother (Official Video): Ravi Kishan | Surjit Bindrakhia,Mellow D,Atul S,Vigyaanik 3 min 
【本季完结】《百日成王》第25话：现在我要夺回失去的一切！【奇幻 | 战斗 | 搞笑 | Made By Bilibili】 12 min 
《盗妖行》第58话：定数【玄幻 | 战斗 | 搞笑 | Made By Bilibili】 8 min 
【ENGSUB】🧪⚽出生即被安排，成为被寄予厚望的最强球员！一脚定乾坤？结果天赋技能全点错...《神之一脚》合集 151 min 
AI Slop if finally OVER! (Runway Aleph 2.0) 1 min 
《时光代理人 第三季》第5话花絮：刘枭等人身上的标识，竟是沙罗会【加入会员享最新集】 5 min 
《万古至尊：李云霄传》第16话：武王之威 12 min 
Can Tech Transform my Body in 3 Months? 13 min 
The Way Will Follow You 4 min 
iPhone 18 Pro - Does variable aperture matter? 1 min 
BREAKING: YouTube Just Changed Monetization 20 min 
Mac vs Windows - It's not close in 2026! 22 min 
DJI Pocket 4P vs Insta360 Luna Ultra: Which Is Actually Better? 21 min 
Someone Finally Made a Wireless Podcast Mic! 17 min 
THE SLOW BLADE 4 min 
Void II 3 min 
They Left The Tourist Trail: Kris Kremers and Lisanne Froon | Fascinating Horror 11 min 
DAUGHTER = tower😈🗼what’s your height?🔥 1 min 
I Opened A FAKE Apple Store 18 min 
titan speakerman vs. astros (skibidi toilet 81) 1 min 
Sean McVay on handling the pressure of NFL success #shorts 1 min 
Traditional Business Owner vs AI-Powered Owner #shorts 1 min 
Huge Copyright Strike Situation 18 min 
Solo Deep in the Ozarks 77 min 
Defunctland: The Awful Wiggles Dark Ride 40 min 
Defunctland: The American Idol Theme Park Experience 68 min 
Disney Channel's Theme: A History Mystery 92 min 
Transform Your Bedroom into a YouTube Studio! 12 min 
I took a long walk on a dangerous beach. 27 min 
Ads in Video Games 20 min 
The Real Cause of Hot Flashes and Night Sweats (Not Menopause) 7 min 
Why are people spending $1,000 for old iPods 16 min 
OpenAI talks GPT-6 Astra and Millenium Prize, researchers create WeWorm exploit & IBM’s US Open app 34 min 
Cybersecurity's Telephone Game Problem📞 1 min 
Why YouTube Videos are Getting Longer 1 min 
What is a "Body Farm"? | Fascinating Horror Shorts 1 min 
The Mysterious Swiss Lake Monster | Fascinating Horror Shorts 1 min 
Claude Fable 5 is smarter💡 1 min 
Would You Ride an UNDERWATER Slide? | Fascinating Horror Shorts 1 min 
I'm so glad this hidden monorail broke down. 28 min 
Spider-Man’s Tough-Guy Act Doesn't Go As Planned | Spider-Man: Homecoming 4 min 
The Deadliest Anaconda Attacks | Best Scenes | Anacondas: The Hunt for the Blood Orchid 11 min 
A Family Climb Turns Terrifying | Vertical Limit 6 min 
Van Helsing’s Terrifying Exorcism of Lucy | Bram Stoker’s Dracula 5 min 
Minions & Monsters (2026) 4K - Behold! Phillips and Howard! (8/11) | Movieclips 3 min 
Practical Magic (1998) - Gillian & Sally Kill Jimmy (2/11) | Movieclips 2 min 
Jackass: Best and Last (2026) 4K - The Box Downstairs Prank (5/10) | Movieclips 2 min 
NOCTARI War battle scene - Sci-fi action adventure series, battle scene with Kung-fu swords fight 1 min 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 Part 1: https://youtu.be/l6DKRf-fAAM If you want to learn more about Lagrange Multipliers, I made multiple videos and articles for the topic back in my Khan Academy days: https://www.khanacademy.org/math/multivariable-calculus/applications-of-multivariable-derivatives/lagrange-multipliers-and-constrained-optimization/v/constrained-optimization-introduction 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 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
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