10 weird algorithms

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Fireship

Fireship

Күн бұрын

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@Yhoshua_B
@Yhoshua_B 11 ай бұрын
I don't always understand everything being talked about. I just appreciate being exposed to the knowledge.
@liffidmonky1216
@liffidmonky1216 11 ай бұрын
U can get far then mate
@rubncarmona
@rubncarmona 11 ай бұрын
that's the mindset
@gurunugget
@gurunugget 11 ай бұрын
that's because you only watch it once, watch it one time on a faster speed then again on a slower. now you actually understand
@pajemx8569
@pajemx8569 11 ай бұрын
Same here😅
@Mikolaj_Kapusta
@Mikolaj_Kapusta 11 ай бұрын
Don't worry, probably there is a parallel universe where you understand this video.
@wlockuz4467
@wlockuz4467 11 ай бұрын
Fireship was helping programmers to add tech to their resumes with 100 second series, now he is helping interviewer with new questions for the interviews.
@abhishekpankar
@abhishekpankar 11 ай бұрын
🤣 I literally thought of asking these questions in interviews
@curious_banda
@curious_banda 11 ай бұрын
Better than memorizing leetcode
@Jubinmail
@Jubinmail 11 ай бұрын
Or maybe the programmer can do a reverse uno on the interviewer.
@madhououinkyoma
@madhououinkyoma 11 ай бұрын
0:00 - Intro 0:43 - Wave Function Collapse 1:41 - Diffusion 2:40 - Simulated Annealing 3:40 - Sleep Sort 4:19 - Quantum Bogosort 4:59 - Shor's 6:10 - Marching Cubes 6:48 - Byzantine Fault Tolerance 7:46 - Boids 8:17 - Boyer Moore
@yash1152
@yash1152 11 ай бұрын
thanks a lot
@Suman-bd1tc
@Suman-bd1tc 11 ай бұрын
Ahh so much better with your comment thank you so much ❤❤❤
@tylrfilms
@tylrfilms 11 ай бұрын
Video isn't that big that you need timestamp tho
@limpiadora
@limpiadora 11 ай бұрын
Here is the other legend, thanks a lot
@studybuddy7060
@studybuddy7060 11 ай бұрын
For the sleep sort one, what if we take the biggest element and scale all elements down by that number. Then, it would take atmost 1 second to sort. Though still it would leave the sorting to the CPU scheduler.
@GSBarlev
@GSBarlev 11 ай бұрын
My favorite algorithm is probably Perlin Noise. You touched on procedural generation in your wavefunction collapse portion, but the fact that the result is _deterministic_ (based on the initial seed) and independent of the order of the observations is just mind-blowning.
@sjoerdev
@sjoerdev 11 ай бұрын
simplex noise is far better
@112BALAGE112
@112BALAGE112 11 ай бұрын
Perlin (and Simplex) Noise work by using a pseudo random generator such as Mersenne Twister.
@nicolasreinaldet732
@nicolasreinaldet732 11 ай бұрын
Haaa yes here we have a minecraft enjoyer.
@madhououinkyoma
@madhououinkyoma 11 ай бұрын
Using a seed for procedural generation is mind blowing?
@paladynee
@paladynee 11 ай бұрын
@@sjoerdev Ken Perlin invented them both.
@awiewahh
@awiewahh 11 ай бұрын
Diffusion was not first developed at openai. Diffusion as we know it as an image generation technique started as the Denoising Diffusion Probabilistic Models (DDPM) paper that came out from UC Berkley with Ho et al in 2020. Dall-e 1 wasn't even diffusion, it wasn't until far later that openai joined the diffusion scene.
@en9717
@en9717 10 ай бұрын
Wrong
@awiewahh
@awiewahh 10 ай бұрын
@@en9717 My other comment seems to have been deleted, so I wont try to link the paper again. But the original image generating diffusion model has the arxiv code of arXiv:2006.11239 There have been previous diffusion models before that too, but not to the same extent as the DDPM paper. Regardless, none of them were through OpenAI.
@PrintScreen.
@PrintScreen. 10 ай бұрын
@@awiewahh yeah i don't think someone that only replied "wrong" knows what they're talking about, just a troll
@Audisknfj
@Audisknfj 10 ай бұрын
Pieter Abbeel, the doctoral advisor of Ho was one of the main advisors of OpenAI. While diffusion models were developed in Berkeley, it didn’t take long for openAI to join the party even though dalle took some time to release
@shanesmithau
@shanesmithau 5 ай бұрын
@@awiewahh Links in KZbin comments tend to get auto-filtered out, and if they aren't seen by the creator within 30 days and approved, get deleted as spam. Generally it's best to avoid links entirely and try to reference things without them (as you've done above)
@Equalisys
@Equalisys 11 ай бұрын
*Algorithm* (noun) : Word that programers use when they don't want to explain what they are doing
@capta1nseal
@capta1nseal 11 ай бұрын
These days it's getting increasingly common that the programmer doesn't know either
@pedrobigboss
@pedrobigboss 11 ай бұрын
LMAO @@capta1nseal
@javabeanz8549
@javabeanz8549 11 ай бұрын
​@@capta1nseal"that's what they taught us to do, I don't know why it works..."
@welcomespiritual
@welcomespiritual 11 ай бұрын
As a mechanical engineer that later became software developer, it's nice for once to see concepts i actually studied like thermodynamics or metallurgy being related to programming
@cristophermoreno2290
@cristophermoreno2290 11 ай бұрын
same
@devon9374
@devon9374 11 ай бұрын
Same here
@3xpl0i79
@3xpl0i79 11 ай бұрын
Mechanical engineers work as anything but mechanics.
@mubx4323
@mubx4323 11 ай бұрын
actually, every engineering problem/topic can be somehow be related to programming
@MarkEichin
@MarkEichin 11 ай бұрын
Videos like this show why developers really need to pay more attention to the *history* of computer science - Simulated Annealing was a cool new idea in *1983*, Boyer-Moore is from the late 70s, Marching Cubes is from 1987 - I recently coded up the Shoelace Formula for something because I learned it from an architect doing concrete-foundation estimation back in the 1980s, but it goes back to 1769 :-)
@AdidasDoge
@AdidasDoge 11 ай бұрын
I might have to memorise all these algorithms in case it comes up in an interview
@abhijeetas7886
@abhijeetas7886 11 ай бұрын
its never a problem if you never knew, but its a problem now that you know these exist but cant remember when need comes to be
@BlueJDev
@BlueJDev 11 ай бұрын
@@abhijeetas7886 soo , it's better to have it and not need it, than need it and not have it?
@lowzyyy
@lowzyyy 11 ай бұрын
doubt you will ever understand this algos, let alone remember...
@alastairtheduke
@alastairtheduke 11 ай бұрын
I'll just use the boyer moore algorithm to searh this channel for the word 'algorithm' @@abhijeetas7886
@HT79
@HT79 11 ай бұрын
If you get these algorithms asked in the interview, you're either secretly getting hired by the Illuminati or you're not getting hired at all
@andrewallbright
@andrewallbright 11 ай бұрын
My favorite algorithms ATM are ones for video games. You see, video games are in the category of “real time simulation” meaning what you see is actually being computed live. That means that there really isn’t a bunch of resources to use; algorithms must be highly effective. The work of optimization is handled by trying to pre-compute things or fake things. My favorite example are oceans. The best water simulation (like in Sea of Thieves) is faked by pulling past data from real science buoys and essentially replaying real water (lol). Otherwise computing water in real time is terribly expensive. It’s a hack but an example of how a resource constrained environment produces creative solutions.
@ric6611
@ric6611 11 ай бұрын
That's actually hilarious, so often nowadays we just forget the simplest solution.
@jyggalag_
@jyggalag_ 11 ай бұрын
That acerolas video on it is amazing
@yoloswaginator
@yoloswaginator 11 ай бұрын
I hope the field will make a huge leap once generative AI has been incorporated into NPC behavior, 3D texture generation, on-the-fly adjustments of the vibe/music/storyline/difficulty levels etc. Soon games could come out that may play out in ways totally unexpected to the developerts due to the increased degrees of freedom.
@LuisSierra42
@LuisSierra42 11 ай бұрын
I used a similar hack for my mobile 2d game
@Vaeldarg
@Vaeldarg 11 ай бұрын
@@yoloswaginator A.I model-training combined with the algorithms behind 3D photogrammetry/light-fields has been leading to some magical results lately.
@kbobkpop
@kbobkpop 11 ай бұрын
Happy to see you covering algorithms! I feel like that is an area of software engineering / computerscience that deserves more love!
@gus473
@gus473 11 ай бұрын
🍻 Thinking it's about time the Cooley-Tukey FFT algorithm had its own special commemorative day, with festivities! 😎✌️
@icitry
@icitry 11 ай бұрын
I've actually had bogosort run successfully a couple of times and even showed it to others, but for some reason nobody seems to remember that...
@marcelreiter181
@marcelreiter181 6 ай бұрын
Just choose n = 1 then to repeat your success :)
@josephmalham725
@josephmalham725 11 ай бұрын
Just a footnote for anyone who sees it, real world wavefunction collapse isn’t dependent on looking at particles. The word observation is used but that’s a catch all term for some form of physical interaction with the particle. Human vision and perception doesn’t have the ability to magically cause collapse, but if we want to look at it, it has to first collapse.
@hashdankhog8578
@hashdankhog8578 11 ай бұрын
that graphic you showed which explains the difference between scalers, vectors, matrices, and tensors is incredibly underrated.
@binarymystic
@binarymystic 11 ай бұрын
scalar* (even though the video itself made this typo several times!)
@lolatmyage
@lolatmyage 8 ай бұрын
@@binarymystic scales
@GameWorldRS
@GameWorldRS 11 ай бұрын
Apprently a guy named Oded Regev just discovered a major improvement to Shor's algorithm. Shor himslef agreed that it vastly improved on his original method.
@muraliavarma
@muraliavarma 11 ай бұрын
Right, the KZbin channel "Quanta Magazine" just released a video about Computer Science Breakthroughs of 2023 and this improvement was one of them. But like mentioned in both videos, it is not yet practical from what I could understand.
@oggolbat7932
@oggolbat7932 11 ай бұрын
Shor, Mara, Dibella, Kynareth, Akatosh. Divines, please help me.
@mihailovasic4623
@mihailovasic4623 11 ай бұрын
​@@oggolbat7932I love you 😂
@devon9374
@devon9374 11 ай бұрын
Make sure you frequent Quanta's website. It's one of the best for tech and science​@@mihailovasic4623
@hedlund
@hedlund 11 ай бұрын
@@mihailovasic4623 That's gotta be the best random-ass lore snippet insertion I've seen in years.
@Coudnt_think_anything
@Coudnt_think_anything 9 ай бұрын
I like the idea that there’s a universe where pogosort works every single time and nobody knows why
@amitnakash1642
@amitnakash1642 11 ай бұрын
Sleep-Sort made me pause, smile, and go “f*king genius” 😂😂😂
@Internetzspacezshipz
@Internetzspacezshipz 5 ай бұрын
Honestly laughed my ass off at that one
@BillyBraga
@BillyBraga 5 ай бұрын
It's basically Spaghetti Sort, but slower 😂
@holthuizenoemoet591
@holthuizenoemoet591 11 ай бұрын
wave form collaps is not really related to quantum physics but is cool anyway. An algorithm that i miss is the stochastic gradient descent algorithm, what propelled us into the AI area.
@brucewayne2480
@brucewayne2480 11 ай бұрын
Any good course about it ?
@isodoubIet
@isodoubIet 11 ай бұрын
Yeah it's just monte carlo sampling of a distribution defined implicitly in terms of local consistency rules. The quantum BS probably helped its marketing though.
@chaotickreg7024
@chaotickreg7024 11 ай бұрын
It might be more accurate to call it something like "Random field collapse" because it's unrelated to the quantum wave function. But still cool!
@dukemagus
@dukemagus 11 ай бұрын
I was expecting something related to Signed Distance Fields... Graphics programming has some insanely ways of overcoming challenges
@cajonesalt0191
@cajonesalt0191 11 ай бұрын
Pedantry warning: SGD is an amazing optimization algorithm, but it is not correct to say that SGD is what propelled us into the current AI era - that would be backpropagation. If you want to assign credit to a single algorithm, it would be more appropriate to assign it to backprop, since backprop is what allows SGD to solve the credit assignment problem in the first place. Without backpropagation, a network cannot learn. Backprop is the algorithm that SGD relies on in neural networks to actually train them. So, it's not SGD but backprop that let us do AI. That being said, the real winner is raw compute power. Things like SGD and backprop have been around for 40+ years (backprop over 50) and were already used in AI as far back as the 1980's. The problem is that you couldn't handle anything with any meaningful depth until the mid-to-late 2000's because the compute power and memory just weren't there. The explosive advancement of AI really is just a matter of hardware advancement, especially anything that allows for parallel computing. Thank you, video games, for getting someone to invent discrete GPUs.
@itsmemario1298
@itsmemario1298 11 ай бұрын
Me scared af because some of the "Interesting" algorithms are in my Syllabus
@Yougottacryforthis
@Yougottacryforthis 5 ай бұрын
What course was it? Finishing my degree and never encountered any of these
@Gaak967
@Gaak967 11 ай бұрын
Loving the consistency of these videos. Keep up the good work.
@edbrito-swdev
@edbrito-swdev 11 ай бұрын
I was listening to this on my car on my way back home. This was the kind of stuff that made me love learning computer science and made me go to masters and then PhD (which I never finished). Nowadays I work doing bullshit software that I hate 99% of the time. Doing enterprise software development is atrocious for the mind and soul.
@o0QuAdSh0t0o
@o0QuAdSh0t0o 11 ай бұрын
What made you stop the PhD? Curious as a CS major working towards Bachelor’s atm
@edbrito-swdev
@edbrito-swdev 11 ай бұрын
@@o0QuAdSh0t0o I was with heavy clinical depression and probably burn out, too. I was completely disillusioned with the bureaucracy of research grants, the "office politics " at the university, the way my supervisors didn't support or supervise, having to teach first year students (which I liked) while doing all else, including review papers that were supposed to be reviewed by my supervisor... Everything was just too much.
@noth606
@noth606 4 ай бұрын
You can add spice to software development too, I used to do that. Finding an excessively elegant way to do something, only comment what it does without any clue to how, and leave it there. Not a very good example but you can check if password rules are followed (mostly) with one quite short regex. Comment it with 'password rule check' and leave it to beaver to then at some later point try to figure out what the password rules actually are, most people don't know regex ;-). You'll have someone ask at some point later, possibly, but they may have a sleepless night over it first. Leave easter eggs that are very hard to find. Use convoluted data models that are defensible as justifiable. Etc ;-).
@anon1963
@anon1963 3 ай бұрын
​@@noth606you know that won't get past the code review
@linuxguy1199
@linuxguy1199 11 ай бұрын
I think i'm gonna start using sleep sort in my production apps, wpuld work wonders to minimize the CPU usage of my apps. I currently use quantum bogosort, but it's a little too CPU intensive.
@HT79
@HT79 11 ай бұрын
Hey look, it's the I Hate Myself Dev!
@nomadshiba
@nomadshiba 10 ай бұрын
sleep sort is basically counting sort
@xenostim
@xenostim Ай бұрын
make sure you document the metrics well so you get yourself a raise!
@jsjeevasaravanan9298
@jsjeevasaravanan9298 11 ай бұрын
Weird algorithms summary: Wave Function Collapse (0:43): Procedurally generates maps for video games by collapsing possibilities upon observation. Represents an initial map in superposition, selecting tiles based on consistent rules. Diffusion Algorithm (1:41): Derived from thermodynamics, reverses the process of spreading particles to generate coherent images. Used in image generators like DALL·E and Stable Diffusion, with potential for audio and video generation. Simulated Annealing (2:40): Optimization algorithm inspired by metallurgy, balances exploration and exploitation. Offers a metaphor for a developer's journey from exploring diverse technologies to specializing in one. Sleep Sort (3:40): Unconventional sorting algorithm that delegates sorting to the CPU scheduler through thread sleep times. Genius yet impractical, as it relies on the scheduler to execute the sorting process. Quantum BOGO Sort (4:19): Theoretical sorting algorithm leveraging quantum mechanics and multiverse theory. Hypothetically relies on observing parallel universes to find a pre-sorted array, requiring a portal gun. Shor's Algorithm (4:59): Quantum algorithm for integer factorization, potentially threatening RSA encryption. Leverages quantum concepts like qubits, superposition, and entanglement to perform parallel calculations. Marching Cubes Algorithm (0:00 & 6:10): 3D mesh generation algorithm used for rendering MRI data in 3D. Processes a 3D scalar field to create a mesh by considering neighboring points and predefined polygons. Practical Byzantine Fault Tolerance (PBFT) (6:48): Distributed consensus algorithm essential for maintaining network integrity in the face of node failures. Enables nodes to reach a consensus on executing changes despite up to one-third of nodes behaving unpredictably. Boyd's Artificial Life Program (7:46): Simulates flocking behavior of birds using three simple rules: avoid crowding, align with the average heading, and move towards the center of mass. Demonstrates emergent complexity and beauty arising from simple rules, reflecting natural phenomena. Boyer-Moore String Search Algorithm (8:17): Efficient string search algorithm that becomes faster with larger search strings. Scans text from right to left, utilizing pre-processed tables for skipping characters based on bad character rules and mismatch occurrences.
@nikkehtine
@nikkehtine 11 ай бұрын
This might be my favorite Fireship video to date. The quality, the explanations, the humor, the subject, they are all near-perfect!
@kielbarry1789
@kielbarry1789 11 ай бұрын
I agree - high quality, low bs! How KZbin should be. 11 -> fire ship info/density algo
@senzmaki
@senzmaki 11 ай бұрын
Let's see Paul Allen's favourite fireship video
@Cristopherdreamer
@Cristopherdreamer 11 ай бұрын
Based ena pfp
@mathematicsclub961
@mathematicsclub961 11 ай бұрын
same
@lpsinko9705
@lpsinko9705 11 ай бұрын
because its ai ,its hard for humans .WAKE UP FROM THE MATRIX!!!!!
@TheSnero3
@TheSnero3 11 ай бұрын
I love the fact that he continues the simulation story line through every video!
@skipperallen205
@skipperallen205 5 ай бұрын
Or how he mention to kill your look a like version of you self..( 😂) portal jump to steal their advancement and bring it back.. 😮
@KimOyhus
@KimOyhus 11 ай бұрын
I actually did invent a simpler improved variant of the marching cubes algorithm, while sleeping. And the dream was so vivid I thought I had programmed it, but I could not find the code when awake. So I had to write the code again while awake, and it was so easy the second time.
@HT79
@HT79 11 ай бұрын
r/thathappened
@Fran-kc2gu
@Fran-kc2gu 11 ай бұрын
Link to the repo or didn't happen
@KimOyhus
@KimOyhus 11 ай бұрын
I use it on my own 3D-printer projects. Code is secret for now@@Fran-kc2gu
@lgbtthefeministgamer4039
@lgbtthefeministgamer4039 11 ай бұрын
you aren't special, Kim.
@KimOyhus
@KimOyhus 11 ай бұрын
I have several world records.@@lgbtthefeministgamer4039
@sandorvasas611
@sandorvasas611 11 ай бұрын
I DID have dreams about extracting polygonal meshes from isosurfaces when I was 15! Worked on a destructible pseudo-infinite 3D landscape first-person "game" at the time. Marching tetrahedrons was the answer.
@mediumrarechicken837
@mediumrarechicken837 11 ай бұрын
Don’t forget about the algorithm that controls us all
@apacheaccountant9757
@apacheaccountant9757 11 ай бұрын
Differential evolution?
@teddy_gramz
@teddy_gramz 11 ай бұрын
One of your most fascinating videos yet! The fact that you relate so many of these to other fields (quantum physics, medicine, thermodynamics, metallurgy) is really cool. I'd love to see more videos of you relating computer science/programming concepts to other fields and real-world phenomena!
@R2D21111W
@R2D21111W 11 ай бұрын
In the lecture 'Logic of living systems' that included Boids we also covered so called 'Core Wars'. Basically its about different assembler code fighting over memory via replication and 'killing' other code. Maybe you are also interested in this subject 😊
@noth606
@noth606 4 ай бұрын
What determines which code wins? I mean is it always going to end the same regardless of architecture or is there something system related that influences the outcome? I tried to find the lecture but there are many with that same name... I could see uses for a system like code snippets fighting over memory...
@isbestlizard
@isbestlizard 10 ай бұрын
Nature-inspired optimisation is SO COOL i love things like ant colony and particle swarms and genetic algorithms o.o
@latenightenjoyer
@latenightenjoyer 11 ай бұрын
when it comes to the factorization problem and other mathematical problems that most modern cryptographic systems use, there are already out there new algorithms that will replace what is currently in use and that are not breakable/exploitable by paralell/quantum computing (these new algorithms use lattice theory).
@stockandoptionstrading
@stockandoptionstrading 11 ай бұрын
@stephanenouafo 1 day ago 0:00 - Intro 0:43 - Wave Function Collapse 1:41 - Diffusion 2:40 - Simulated Annealing 3:40 - Sleep Sort 4:19 - Quantum Bogosort 4:59 - Shor's 6:10 - Marching Cubes 6:48 - Byzantine Fault Tolerance 7:46 - Boids 8:17 - Boyer Moore
@monkeibusiness
@monkeibusiness 11 ай бұрын
Shors Algo has recently been improved by Oded Regev. It was basically out of nowhere!
@lordew9476
@lordew9476 10 ай бұрын
One day, after watching a video from the Veritasium channel, I was inspired to create the same formula they demonstrated in the video. The next day, I woke up in a cold sweat from a nightmare. In the dream, I was writing the same line repeatedly, unable to stop, as if my hands were glued to the keyboard. It was a creepy experience.
@augustday9483
@augustday9483 11 ай бұрын
Wave function collapse is awesome, procedural-generation in general is a really interesting topic of computer science to me.
@112BALAGE112
@112BALAGE112 11 ай бұрын
Here's a string search algo faster that Boyer-Moore: the FM-index. For searching pattern P in text T, Boyer-Moore has runtime O(|P|+|T|) but FM-index is O(|P|). That's right, it doesn't depend on the length of the text. You can search gigabytes of text just as fast as kilobytes, provided that you've built the FM-index for it.
@Linkman8912
@Linkman8912 11 ай бұрын
The speedcubing reference with CFOP is perfect
@aritradattagupta9181
@aritradattagupta9181 5 ай бұрын
You should be given some kind of an award man. For years now you have been producing high quality content and your meme choices are just absolutely perfect.
@brainxyz
@brainxyz 11 ай бұрын
Particle Life is another amazing algorithm. It's similar to boids but it's simpler and produces way more complex and emergent behaviors.
@Ceelvain
@Ceelvain 10 ай бұрын
AFAIK, grep was originally written by Ken Thompson. Yes, the one that was involved in Unix and C and make a significant contribution to running regular expressions.
@0e0
@0e0 11 ай бұрын
I believe this year someone improved Shor's algorithm by making it multi-dimensional
@eatfruitsalad345
@eatfruitsalad345 11 ай бұрын
I remember reading a comment on some other CS related vid that said that back in the old days of coding, programs were like masterful works of art kind of like Baroque music - meant to fulfill a certain task as efficiently and basically not be touched after creation. Probably this led to some really great algorithms being created during that time (though I’m not saying we should revert back to unmaintainable obscure “art” code)
@conradmbugua9098
@conradmbugua9098 11 ай бұрын
so this is where the saying "if it works don't fix it" originates from
@julians3danimations
@julians3danimations 10 ай бұрын
4:14 that's clever as hell
@JoshuaGottlieb-oz4er
@JoshuaGottlieb-oz4er 11 ай бұрын
High quality content sir. That was a tasteful blend between memes and informative information
@AyanAlam
@AyanAlam 7 ай бұрын
Hey I used the BOIDS algorithm to design a student-faculty management system for our uni glad to see it mentioned here
@DrakiniteOfficial
@DrakiniteOfficial 11 ай бұрын
I actually used Wave Function Collapse recently, helping a friend with his project. It was a machine learning class, and the project involved training a neural network to create the *rules* for wave function collapse to do its thing. It wasn't very successful 😆
@HT79
@HT79 11 ай бұрын
Thank God it failed. Otherwise that would've been the first step to create the Generals for our AI overlords
@grossgrandpa
@grossgrandpa 5 ай бұрын
0:50 that’s actually a common misconception, it doesn’t change when you look at it but instead when you MEASURE the particle
@isodoubIet
@isodoubIet 11 ай бұрын
The figure at 6:22 is incorrect. A tensor is not a 3d matrix, it's a more general concept. A scalar is a type of tensor. A vector is a type of tensor. A matrix is a type of tensor. A 3d array is a type of tensor. Tensors are, very informally, objects with n indices that satisfy certain transformation rules.
@Jang09
@Jang09 11 ай бұрын
You're confusing the definitions for math and computer science. They are all essentially arrays of numbers in programming and are just given the names scaler, vector and tensor because they are representations of those objects. In math, a matrix is a linear transformation, and a tensor is a multilinear map (given a basis). The "informal" definition you mentioned is the one usually given in physics and it's only for the components of a tensor (which is typically all you have to worry about since physics should be background independent) but not the object itself.
@isodoubIet
@isodoubIet 11 ай бұрын
@@Jang09 No, I am not. First of all, there isn't really a "definition" of tensor specific for computer science, since the term was just lifted from math and physics without much thought and no further theory was developed, and secondly, even if there was, it would still be the case that a tensor has an arbitrary number of indices _because that is the practice where the term tensor is used_ e.g. in machine learning. If you really want to drop the transformation properties, go ahead, but it's pretty silly to come up with a synonym for array. What you cannot do is say it must be 3d, because nobody uses it that way and that's a definition used only by you. " it's only for the components of a tensor" That is incorrect. It is the definition of the object. A single component of a tensor is not a very useful object.
@Jang09
@Jang09 11 ай бұрын
@isodoubIet The transformation law is for the components of a tensor the indices are labeling the components this is pretty standard in physics. The word tensor in computer science is used for multidimensional arrays.
@isodoubIet
@isodoubIet 11 ай бұрын
@@Jang09 "The "informal" definition you mentioned is the one usually given in physics and it's only for the components of a tensor " Is what you said above. You said it's _only_ for the components and not for the whole object, which is definitively incorrect. The transformation laws obviously operate on the components, but that's not what you said, nor is it something relevant or useful to bring up. "The word tensor in computer science is used for multidimensional arrays." I literally just explained this. 1. The word tensor is not used productively, its just a cute word that people who don't understand what tensors are decided to use for multidimensional arrays 2. computer science already had multidimensional arrays and 3. "multidimensional" means with an arbitrary number of indices, not just 3, precisely as I stated. You're trying to be absurdly pedantic, which I can appreciate, but you're also failing miserably. Just stop.
@Jang09
@Jang09 11 ай бұрын
@isodoubIet I'm literally just stating that the same word is used in different fields to mean different things 😅 so your first comment doesn't make sense since your trying to use the physics definition on a CS video. And yes the transformation law only refers to the components of the tensor as the tensor itself is invariant to a change of basis.
@anmolsharma9539
@anmolsharma9539 10 ай бұрын
This is overwhelming amount of information in just 10 min. Thanks Fireship for such quality content.
@kaanosmanoglu1506
@kaanosmanoglu1506 11 ай бұрын
I love any video where you don't mention that I'm going to be unemployed.
@sachindraragul1094
@sachindraragul1094 11 ай бұрын
MRI scan is crazy. It's one of the highest form of engineering the world has ever seen.
@zaytham760
@zaytham760 11 ай бұрын
Could you apply that last one to the library of babel algorithm and find anything? Seems like an interesting project.
@Eokoi
@Eokoi 11 ай бұрын
Bogosort being basically gambling amazes me
@YounesWinter
@YounesWinter 11 ай бұрын
While watching this video i had a panic rithms!
@Tapahtumahorisontti
@Tapahtumahorisontti Ай бұрын
The double slit experiment isn't about whether you look or not at something. The term "observation" is really misleading and refers to an act of measurement which always requires disruption or destruction of one kind of information as a cost of another kind information.
@hisshame
@hisshame 11 ай бұрын
Fireship is the tinfoil-hat-wearing older brother we all need.
@Ulissescars
@Ulissescars 11 ай бұрын
Wow, what a coincidence, I was reading about Boyer-Moore algorithm yesterday.
@4mb127
@4mb127 11 ай бұрын
@0:09 yes, actually
@somebodysomewhere4670
@somebodysomewhere4670 3 ай бұрын
Same, lol
@corster8221
@corster8221 11 ай бұрын
I was hoping you would cover bloom filters
@perpetu
@perpetu 11 ай бұрын
Ive realised Algorithm designing first easens coding step instead of directly going to code
@realchrishawkes
@realchrishawkes 11 ай бұрын
Fireship, you're killing it.
@phoneix24886
@phoneix24886 11 ай бұрын
My favourite is fast inverse square root. Never seen a more weird algorithm than that in my life. Its just so random but also so useful.
@desmond-hawkins
@desmond-hawkins 11 ай бұрын
The one used in Quake III Arena? It's dark magic, the original code even has a line in this function that's commented out with a note that says // 2nd iteration, this can be removed.
@muelleer
@muelleer 11 ай бұрын
My favorit sorting algorithm is Starling sort. Simply delete any element which is not in order.
@desmond-hawkins
@desmond-hawkins 11 ай бұрын
The input to the marching cubes algorithm is a *scalar* field, not a *scaler* field. A scalar field is just a set of numbers associated to points in space. Each scalar can be a vector, like if you knew the measurements of wind speed and direction at regular intervals within a 3D area you'd be dealing with scalar fields. If it's about 3D modeling the number could be 1 or 0 to represent the presence of an object, or a quantity representing its color or texture, etc. A scaler is something that scales (resizes) something.
@gerardmccalloe4049
@gerardmccalloe4049 10 ай бұрын
A field of vector isn’t a scalar field, it’s a vector field
@ghosts857
@ghosts857 9 ай бұрын
You are really good at computer science not only creating website you understand deeply inside of computer science
@cip0llo
@cip0llo 11 ай бұрын
i have a bot that likes every one of my comments
@umbreonben
@umbreonben 11 ай бұрын
your comment has one like - seems accurate
@Eddio0141
@Eddio0141 11 ай бұрын
I'd like to imagine there's only 1 bot and it likes your comments once and nothing else
@pixiedev
@pixiedev 11 ай бұрын
realy ?
@abhijay_hm
@abhijay_hm 11 ай бұрын
no wonder the video mentions most algorithms worth going into dumpsters 🫠
@AdidasDoge
@AdidasDoge 11 ай бұрын
Lol
@lynxlagoon
@lynxlagoon 11 ай бұрын
Honestly, Proof of Work is one of the most beautiful consensus algorithm, it's so simple.
@draido-dev
@draido-dev 11 ай бұрын
there is no way jeff is using algorithms, it's all AI, right?
@nazramirez
@nazramirez 11 ай бұрын
Soooo much content that by the end of your videos I can’t remember what you said at the beginning of the video. Pretty entertaining! Thanks!
@jafrex
@jafrex 11 ай бұрын
Am I trippin or does Fireship's voice sound AI generated?
@thomasedwardpeterson
@thomasedwardpeterson 11 ай бұрын
I'm high as hell right now, you got feeling paranoid now lol
@d7ffab979
@d7ffab979 11 ай бұрын
Oh yeah, Boyer Moore Horspool, had that one in first semester in Informatics. We also programmed Haskell lol.
@Adomas_B
@Adomas_B 11 ай бұрын
Hey Jeff, since you mentioned weird algorhitms any ideas about extraciting readings in a base-plate of prefabulated aluminite surmounted by a malleable logarithmic casing?
@kaustubhKapse
@kaustubhKapse 11 ай бұрын
go sleep
@ChrisT_
@ChrisT_ Ай бұрын
Easily my favorite video of yours!
@Awindow
@Awindow 11 ай бұрын
I feel proud as a science student and understanding 95% of everything in the video
@urban8499
@urban8499 9 ай бұрын
Dude I absolutely love your humor and you need to do programmer stand up , such a unique humor I love it !
@tulliusexmisc2191
@tulliusexmisc2191 8 ай бұрын
I should point out the Byzantine Generals problem is not about correcting errors. In its general form, so to speak, it is to ensure the group follows the correct course of action when up to 1/3 of its members are actively conspiring to subvert it.
@sirflimflam
@sirflimflam 11 ай бұрын
Wave function collapse has been my favorite algorithm for a while now. It's really neat, and it has a badass name.
@icoudntfindaname
@icoudntfindaname 11 ай бұрын
Tbh best fireship video ever... Pls make more of such videos
@trevorsg
@trevorsg 11 ай бұрын
Moore was one of my college professors. Loved seeing him pop up at the end!
@petergriffon8520
@petergriffon8520 11 ай бұрын
don't understand much and sometimes i feel like this is all gibberish, but i like it
@TheTrippyTerminal
@TheTrippyTerminal 11 ай бұрын
Wow, I worked with CT and MRI for 3 years... but never knew about marching algo.
@lupirite6373
@lupirite6373 10 ай бұрын
Immediately my favorite 2 algorithms of all time, I'm definitely watching through this video.
@roelwestrik2956
@roelwestrik2956 11 ай бұрын
For my major at uni I studied the WFC, Simulated Annealing, Marching Cubes and boids. I never thought I would hear about those ever again but here we are.
@thygrrr
@thygrrr 11 ай бұрын
I wonder if sleep sort actually doesn't have an amazing premise. With the right sort of scheduler, it could be an o(n) algorithm. However, it's basically a radix sort.
@Daniil-gs2wt
@Daniil-gs2wt 11 ай бұрын
Love this video, very educational
@DEOXY777
@DEOXY777 6 ай бұрын
sleep sort just made my day
@7edim
@7edim 11 ай бұрын
Wow thank you man, that double slit aws finally makes sense.
@udith
@udith 11 ай бұрын
Isn't kmp more wierd and efficient than Boyermoore?
@LiquidSpider
@LiquidSpider 11 ай бұрын
sleep sort has to be the funniest algorithm i've ever seen
@eel_from_north_sentinel_island
@eel_from_north_sentinel_island 2 ай бұрын
2:36 That's not Brandenburg Gate, That's Arc de Triomphe!
@hfa7927
@hfa7927 11 ай бұрын
Cutting down on AWS bill is highly compelling explanation for the collapse of the wave function; it makes perfect sense.👏
@ArcanePath360
@ArcanePath360 9 ай бұрын
That bird flocking 3 rules system, I heard it was 3 different rules: 1. Flock together 2. Keep equidistant apart 3. Avoid predators. This last one is what creates the spectacular patterns we see when a large crowd looks almost like smoke from a distance.
@thesleepykoala
@thesleepykoala 11 ай бұрын
Sweet Roguelike Tutorial my dude
@filiformis
@filiformis 11 ай бұрын
I've actually been looking for something like simulated annealing to help me solve a problem I've been working on. Thanks.
@marshallcapps3084
@marshallcapps3084 11 ай бұрын
Crazy to see Boyer-Moore mentioned. I fondly remember their CS class at UT.
@tom-MKvGBPQC5fv9
@tom-MKvGBPQC5fv9 10 ай бұрын
I HAVE "woken up in the middle of the night in a panic wondering how to extract a a polygonal mesh of an isosurface from a three dimensional discrete scalar field". I wrote a Java program that displayed molecular orbits that used the marching cube algorithm. That required lots of patience and discipline. Amazing algorithm, though. Your a different programmer after you implement it. Great subject for a video!
@MikeStoneJapan
@MikeStoneJapan 11 ай бұрын
I love how Terry always pops up. Gotta keep the legends alive.... So bitter sweet
@TheInvestmentCircle
@TheInvestmentCircle 10 ай бұрын
Boyer Moore is quite interesting, nice find Sir Ship of Fire.
@gourav7315
@gourav7315 11 ай бұрын
We want 100 second video, please
@lancemarchetti8673
@lancemarchetti8673 11 ай бұрын
Cool upload! I've been working on a new digital image Steganography idea that doesn't rely on an algorithm, but leaves the target image untouched and applies a given co-ordinate reference to the target bytes for extraction in the correct sequence. So technically, I could extract a 300KB GIF image of a fishing boat from a 124KB Jpeg image of a wedding dress. So basically you could never extract the boat bytes without the coordinate sequence. Because the boat has not been algoritmically 'worked into' the target image (wedding dress). I'm pretty excited about my findings...
@kiko7247
@kiko7247 Ай бұрын
That sounds interesting!
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