How Data Science Works
1:00:24
2 жыл бұрын
How k-nearest neighbors works
26:20
3 жыл бұрын
Пікірлер
@Sandydaysofficial
@Sandydaysofficial 5 күн бұрын
Best Knowledge for real. The video is very helpful. ❤
@khuebner
@khuebner 10 күн бұрын
Great presentation, Brandon. I prefer your simple graphics and pace over the highly distracting, animated videos from other educators.
@BrandonRohrer
@BrandonRohrer 10 күн бұрын
Thanks! I appreciate that
@davidcarci6718
@davidcarci6718 14 күн бұрын
You will spent hours trying to find the right video, this 26 min clip is all you need.
@terryliu3635
@terryliu3635 15 күн бұрын
Great explanation!!
@shairurafif1922
@shairurafif1922 24 күн бұрын
Thanks for such an amaizing video
@liviumircea6905
@liviumircea6905 27 күн бұрын
Very good
@pptmtz
@pptmtz 28 күн бұрын
thanks
@John-wx3zn
@John-wx3zn Ай бұрын
The first one put down is in the wrong spot.
@penponds
@penponds Ай бұрын
Now in 2024, and I can’t imagine the degree of triggering all these assumption examples would give a certain disturbed minority of the population… Also I guess it’s only because statistics inhabits the furthest recesses of YT land that someone hasn’t called for it’s banning or demonetisation at the very least!
@John-wx3zn
@John-wx3zn Ай бұрын
Hi Brandon, when giving it an unseen image, how do you know whether to draw a line from the vote percentage to the x or to the o?
@jameshopkins3541
@jameshopkins3541 Ай бұрын
You are not suppose to copy code from vid
@jameshopkins3541
@jameshopkins3541 Ай бұрын
What is i_conv: i_conv
@qjunhui21
@qjunhui21 Ай бұрын
It's great. However, the purpose of ReLU is to introduce non-linear functions rather than normalization.
@jameshopkins3541
@jameshopkins3541 Ай бұрын
Your PDF version please
@adnanhashem98
@adnanhashem98 Ай бұрын
I hope you find the below annotated summary of the explained method of "opening the box" helpful😊 In the process of going through the steps of the method, think about the following questions*: q1: What is the "box" design for? (e.g. What is the purpose of SVM?) q2: What is the "box" used for? (e.g. What is SVM used for?) q3: How to visualize the key concepts? (e.g. How to visualize SVM kernel trick?) q4: How the underlying Math works? I'd like to think of the below "steps" as strategies that I can select from and mix together (depending on the box I'm trying to open). Steps: 1. Read the original source that explains the "box" (e.g. scikit-learn docs).** 2. Read good Tutorial(s). 3. Watch good KZbin videos. 4. Read some good (blog) posts. 5. Explain the "box" to yourself and try to draw illustrations of the key concepts. 6. Choose a toy example (i.e. simple example that preserved the fundamental features of the "box".). 7. Explain it to a 12 year old (to avoid using jargon and to get to the essence of the "box"). 8. Understand the weaknesses of the box. (e.g. What conditions make SVM a poor method of choice?) So, that's it! This is how you open a box 🙂 Footnotes: * Of course some of the questions are not applicable to some "boxes" :) ** Be aware that this step might not be accessible to beginners.
@syedmurtazaarshad3434
@syedmurtazaarshad3434 Ай бұрын
Loved the analogies with real life philosophies, brilliant!
@akk2766
@akk2766 Ай бұрын
Nice explanation of how Machines Learn via Neural Networks. However, a downside of this video is that it is still teaching subconsciously that white is good and black is bad and all the racial connotations that go with that! It would have been so much better if the chosen colours had been say any colour that has no ties to race - say blue and green! I know I'll be lambasted for this but it is how I feel whether and nothing changes that...
@BrandonRohrer
@BrandonRohrer Ай бұрын
You are absolutely right. It's on the list of reasons I cringe when I watch my past videos and things I am careful to avoid in new work. Thanks for the callout.
@akk2766
@akk2766 Ай бұрын
@@BrandonRohrer Thanks for your candid acknowledgement. I also note that my frame of mind was torn as I changed how I was bringing this up to avoid being lambasted. That last sense was meant to be: "I know I'll be lambasted for this but it is how I feel whether it happens or not and nothing changes that..."
@Karim-nq1be
@Karim-nq1be Ай бұрын
That's a masterpiece, not only have I learned how in detail convolutional neural networks work, but also I've learned how I should explain hard subjects to others. Thank you.
@RonicTheEgg
@RonicTheEgg Ай бұрын
3:33 why did -1.075 become positive?
@alirezagumaryan8301
@alirezagumaryan8301 Ай бұрын
very good explain. thanks :)
@yashsharma6112
@yashsharma6112 Ай бұрын
Very very rare way to explain a neural network in such a great depth. Loved the way you explained it ❤
@estifanosabebaw1468
@estifanosabebaw1468 Ай бұрын
the depth of the explanation and visualization, there is no word to describe how much it express and help to grasp the most fundamental and core concept of Neural Networks. THANKS Bra
@jameshopkins3541
@jameshopkins3541 2 ай бұрын
NO CREO Q FUNCIONE
@adahaj
@adahaj 2 ай бұрын
Just awesome @brandon I do have a question though, input image of 9x9 and filter of 3x3, how did we end up with feature map of 9x9 ? Shouldnt it be smaller than 9x9
@igorg4129
@igorg4129 2 ай бұрын
Nice. Very nice actualy But I can think of 2 questions having an answer to which in this video would make the video from very nice to perfect. 1) In 1D, 2d, or 3d cases, is the process of fitting the separating line (or plane) iterative while some loss is being calculated just like in Neural networks? Or it is more like in Linear Regression where I can fit the line iteratively though, but there is no need to do it since there is a straightforward formula to find the slope and the intercept of the best-fitted line. 2) What is the advantage of the observation space being bent instead of bending the "cutting plane"? Thank you very much
@xarisalkiviadis2162
@xarisalkiviadis2162 2 ай бұрын
What a diamond of a channel i just found ... incredible!
@StayTech-Rich
@StayTech-Rich 2 ай бұрын
I had a diffi ultrasound time understanding the convolution layer, this course is the best among all courses I saw on KZbin, keep the good work, you saved me , I was struggling understanding and now I'm completely clear. Thanks alot
@lukas-hofer
@lukas-hofer 2 ай бұрын
insanely good explanation, never seen anything like this. thanks a lot
@jonathanhadiprasetyanto521
@jonathanhadiprasetyanto521 2 ай бұрын
How do you calculate the partial derivative of the loss in regards to the output?
@khachlu5506
@khachlu5506 2 ай бұрын
Hello, I have a project on building a Deep k-Nearest Neighbors (DkNN) model for image recognition. Can you guide me on the steps needed to build the model?thank you!
@chernettuge4629
@chernettuge4629 2 ай бұрын
Respect Sir, Thank you so much- I am more than satisfied with your lecture.
@chandrahaasvemula7251
@chandrahaasvemula7251 2 ай бұрын
its clear till 17:57 , but i just lost it at 18:01, just didnt understand why each lines there changed from 1.0 to -0.2 , 0.0 , 0.8 , -0.5.......can someone explain ?
@victoraguirre7486
@victoraguirre7486 2 ай бұрын
Hot damn this video is soo goood
@heidielhadad9860
@heidielhadad9860 3 ай бұрын
The way you explain is amazing! And visually seeing the convolution step by step was just brilliant! Thank you so much! ❤
@VictorGoncharov-ln1dp
@VictorGoncharov-ln1dp 3 ай бұрын
Nice video, the best one I've seen yet about the concept of partial autocorrelation!
@frbaucop
@frbaucop 3 ай бұрын
Bonjour Q1 : At 5:42. Where the .96 comes from? The square "says" P(woman==0.2 , P(man) = .98. Should we read P(man AND long) = P(man) * P(man | long) = 0.98 * 0.04 = 0.04 Q2 : At 17:00 I understand the mean of the normal distribution in the back is 17. OK, but what is the standard deviation. Is it equal to the one calculated with the 3 values (13.9, 17.5, 14.1) , do we use the standard error or something else? This is not yet clear for me. Merci
@mastersdubai4729
@mastersdubai4729 3 ай бұрын
Its not working,, any other options
@AurL_69
@AurL_69 3 ай бұрын
This channel is a goldmine ty
@user-ge1xg7wz9s
@user-ge1xg7wz9s 3 ай бұрын
не могу слушать это "хвайт"
@ThePowerofInspiration-ym7vr
@ThePowerofInspiration-ym7vr 3 ай бұрын
Hi, Thank You so much. I want to be a Data Scientist. How do I go through your playlist. Can you please help me what to do first -last ?
@alexandrek.6024
@alexandrek.6024 3 ай бұрын
The ice tea part killed me 🤣🤣
@jimjackson4256
@jimjackson4256 3 ай бұрын
I wonder what he thought about the probability of talking snakes.
@brucemurdock5358
@brucemurdock5358 3 ай бұрын
Within the first 10minutes when you explain 'convolution', aren't you TRYING to explain 'cross correlation'? I say 'trying' because it doesn't look like 'cross correlation' either since you averaged the result of the summation. So technically, what you just explained within that time frame is a cross correlation step, after which you implicitly applied a box averaging filter. Correct me if I'm wrong.
@betiglulemma4582
@betiglulemma4582 3 ай бұрын
I have a question. how did the value of weighded connection from -1.075 becomes possitive 1.075.
@pafingl
@pafingl 3 ай бұрын
Marvelous explanation, made simple and concise, yet not oversimplified to a level that would render it pointless. I could not have imagined a better way to bring the loose pieces in my head together. Thanks a lot for this.
@chrisidema
@chrisidema 3 ай бұрын
"degrees" is not a unit
@aqqalularsen3322
@aqqalularsen3322 4 ай бұрын
this was very comprehensible
@sophiafunworldatthepark6740
@sophiafunworldatthepark6740 4 ай бұрын
Very good tutorial. Learn so many things
@zholud
@zholud 4 ай бұрын
If I want yes/no answer say if there is a puppy in the 500x500 image - and I have a bunch of images with puppies - and I want to train CNN from scratch on those - how do I know what features of the puppy are or how many should there be? Like in X and O example you knew the “/“ and “\” features beforehand but what if you want for example to classify a cactus in a desert and it’s “feature” is “v” like a vertical line and a shade from the sun on the ground or something…what’s the intuition to tune the features for the neural network to perform the best for a specific task at hand?
@lucianoinso
@lucianoinso 4 ай бұрын
Don't let the duration of this video intimidate you from enjoying this masterpiece of a presentation, just press play and begin, you'll freaking love every second of it. Thank you so much for sharing this and so much other information for free!