Correction: 4:16 KNN should have 10 correct and 14 incorrect. NOTE: There has been a debate if we should call the "testing dataset" a "testing dataset" or "validation dataset". In my opinion, this depends on the size of your dataset. We'd all like to have a large dataset that we can divide into three parts: Training, Validation and Testing, but that doesn't always happen in the real world. Support StatQuest by buying my book The StatQuest Illustrated Guide to Machine Learning or a Study Guide or Merch!!! statquest.org/statquest-store/

@user-wo5yf8pt5e

4 жыл бұрын

lol I stopped at that point for one minute wondering why it is 10 and 12 for which the sum is not 24

@jacksmith870

4 жыл бұрын

tiny bam!!

@ahanapal4055

4 жыл бұрын

Can you clarify what is this "Correct" and "Incorrect" indicating after each testing using different blocks of data?..what is the interpretation when correct:4 ? :( Unable to get it.. :(

@statquest

4 жыл бұрын

@@ahanapal4055 The machine learning methods that I am comparing in this video are classifying observations. Since we are training the methods, we know how the observations should be classified in advance. Thus, if the method makes the correct classification, then it is "correct". If the method makes the incorrect classification, then it is "incorrect". Does that make sense?

@ahanapal4055

4 жыл бұрын

@@statquest yes, thanks a lot for the clarification!!

My friends find me lame when I say "I learn machine learning from a guy who sings and teaches" . Lol they are missing out.

@statquest

4 жыл бұрын

That's funny. :)

@lzy909axym5

3 жыл бұрын

Tiny Bam!

@nkristianschmidt

3 жыл бұрын

yup joshuastarmer.bandcamp.com/track/love-song

@kishorekumard4911

3 жыл бұрын

I think he is got the world's best teaching skills. Trust me learning ML is not easy unless you are interested. Even if you are not at least you will not feel sleepy in his lectures.

@MrAdhito

3 жыл бұрын

Angry bam ! 😤

It’s crazy to think where we would be if every subject had videos this clear and well made.

@statquest

3 жыл бұрын

Thanks!

@khushivers3

Жыл бұрын

its crazy to think where i would be if i j had access to the net in my growing years instead of my abusive dad

@angelika87

10 ай бұрын

we can't control that assholes brought us into the world but thank goodness we have videos now to get us where we need to be

@michaellai5549

8 ай бұрын

@@khushivers3 I can understand your feelings. All I could say is to let you know you are not alone.

Dear sir/ Dear Josh, Your StatQuest series is brilliant to say the least. The internet is these days flooded with ML tutorials that teach how to run algorithms such as logistic regression or KNN using softwares, or with the lengthy incomprehensible mathematics that explains those algorithms. Yours is one of the rare materials that explains the philosophy! Philosophy, that is the deal for humans, not just feeding numbers and generating more numbers using a machine. Thanks a lot for giving me clarity on how exactly to use cross validation, and for clearing some of the nagging doubts from my tiny,less intelligent brain .

@statquest

4 жыл бұрын

Hooray! I'm glad you like my video. :)

@danielniels22

3 жыл бұрын

yes, that relates to me very much. I'm now in a Data Science bootcamp, and they just explain the maths behind each of algorithms incomprehensibly. they said that the point is just know the little math, because on the field, we just import the sklearn library, and try every model, every algorithm, which one gives the best prediction.... after listening to their statements like that, it makes me wondering. "hmm, i'm afraid that they are probably true, that there is no point at all to learn the math behind these ML Algorithms, because they just import module, choose each of existing algorithm, and done"

@BigAsciiHappyStar

28 күн бұрын

these so-called lengthy incomprehensible mathematics should be paraphrased into rap songs 😂

This guy is legend better than top university professors 😆

@statquest

3 жыл бұрын

Thanks!

@j.castro7355

Жыл бұрын

​@@statquest As a student at a top 10 uni in the world, I can confirm these are facts 😂

@hieuthepunk

9 ай бұрын

​@@j.castro7355really? 😂 Then i will no longer have an excuse that i don't have access to the best education anymore. Let's grind hard

@arenashawn772

6 ай бұрын

Couldn’t agree more. After going through machine learning course materials on virtually every educational platform like coursera, simplilearn, EdX from top universities and companies from Harvard to Google, I think none of them remotely reaches the clarity and no-bushitness here. BAM!!!!

@craigrodrigues3435

3 ай бұрын

Facts!

This is the awesome video. TRIPLE BAM!!!!!

@statquest

6 жыл бұрын

Hooray!!! :)

@jcourn1

4 жыл бұрын

What's the difference between a machine learning method and machine learning model? Is a model applying a method to a specific dataset therefore modeling how it behaves? Will you make a statquest about what is a model??? That's a triple question mark bam! Love your videos! Thank you!

@yashasvibhatt1951

3 жыл бұрын

@@jcourn1 do you still need an answer or should I just skip it, since you posted it an year ago.

@jcourn1

3 жыл бұрын

@@yashasvibhatt1951 thanks for replying! Sure! What's the implication of the terms machine learning model?

@yashasvibhatt1951

3 жыл бұрын

@@jcourn1 A Machine Learning Method is a way of teaching a machine using the data-driven approach. A Machine Learning Algorithm is a set of rules or a list of steps or a procedure to teach the machine using that methodology. A Machine Learning model is what we have received after applying the algorithm on a certain dataset to teach our machine. It represents what was learned by machine using the algorithm. Hope that helps 🙂🙂🙂

i like how you're trying to make your videos not only educational but also entertaining

@statquest

Жыл бұрын

Thanks!

probably some of the best explained stats videos i've seen on youtube. thank you josh for constantly providing us with material that we can actually understand 0:)

@statquest

4 жыл бұрын

Thank you very much. :)

The best example so far. After watching this, my lecture's notes made sense.

@Mali97779

4 жыл бұрын

Same case with me. Double Bam! :)

@PunmasterSTP

3 ай бұрын

How'd the rest of your class go? Was it a...Bam!?

Josh Starmer, you are the savior of my PhD! I rarely do this, but I'm gonna buy a shirt... THANK YOU!

@statquest

4 жыл бұрын

Hooray! And thank you very much! :)

I cannot believe how you put all these complicated theories into such an explicit way!!! Wonderful channel!

@statquest

4 жыл бұрын

Thank you very much! :)

I hardly ever comment on KZread videos, but I just wanted to say that this has been a TREMENDOUS help and I absolutely loved the breakdown, logic, humor, and visuals. Thank you for for making this brilliant video!

@statquest

2 жыл бұрын

Thank you!

NO words for you Mr Josh, hats off!! You make all the concepts so easy to learn in such a short time.

@statquest

3 жыл бұрын

Thank you!

Dude your explanations and visuals are just perfect. I will watch each and every video uploaded by you for sure.

@statquest

4 жыл бұрын

Thank you very much! :)

Thank you very much for this video, Josh! The use of visuals to explain cross validation really helps! I learnt a lot through this video about the fundamental basis behind cross validation as well as the extreme case of Leave-One-Out!

@statquest

3 жыл бұрын

Hooray!

!!! BAM !!! Finally I found a KZread trainer who shares knowledge the way I would like to learn... A big thank you :)

@statquest

5 жыл бұрын

Hooray! :)

I have a ML quiz on monday and was so worried about not grasping these concepts in time - your videos are super clear and helpful and genuinely enjoyable to watch! Thank you StatQuest with Josh Starmer

@statquest

Жыл бұрын

Hooray!!! Happy to help.

I can't imagine how my life would be without these videos! Thanks a lot!

@statquest

4 жыл бұрын

Hooray! I'm glad the videos are helpful. :)

Hey Josh! This is the first time I'm watching your videos and I love the way you teach: pausing for a second before saying the next sentence. It gives time for the listener to digest what you said before! Love it!

@statquest

2 жыл бұрын

Awesome! Thank you!

Why can't most other lecturers on this world teach like you, why can't MY lecturers teach like you, im crying now :(((( if I have to learn Stats/AI/DL/... every single day for the rest of my life, but if it's you who taught us, it's well worth it.

@statquest

8 ай бұрын

Thanks!

I finally understand machine learning and it's better explained than in class. You're the best, BAM!

@statquest

Жыл бұрын

Happy to help!

This is the best stat channel. Extremely simple to understand. Thank you!!!

@statquest

5 жыл бұрын

Thank you! :)

I just don't understand how somebody could dislike this video. It has everything I've ever wanted teaching to be.

@statquest

2 жыл бұрын

bam! :)

Actually, it is an exciting stat quest!! Thanks so much for your videos. Concise, informative and entertaining. Much appreciated.

I can read books and listen to professors for hours about a subject like this and still not understand it... then I watch a 6 minute video and it is crystal clear. Thank you StatQuest!!!!!!!!

@statquest

3 ай бұрын

bam! :)

If I pass my machine learning exam next week it will literally be all thanks to you. Either my book is completely unreadable or I'm stupid, but your videos make so much sense and I finally feel like I actually get the stuff you're talking about. Thank u!!

@statquest

5 ай бұрын

Thanks! By the way, I have a book covering this same material - so check it out if you need extra help: statquest.org/statquest-store/

@profetspurvius913

5 ай бұрын

@@statquest I PASSED!!! THANK YOU SO MUCH!!!! :D

@statquest

5 ай бұрын

@@profetspurvius913 Congratulations!!! TRIPLE BAM!!!

This is fantastic, I usually don't comment, but felt I had to from how well done this explanation is. Thank you for taking the time to make this

@statquest

5 жыл бұрын

Thank you so much! :)

I have completed Applied Machine Learning course from a University in US. The concepts I learned there are being reinforced after watching your Video Josh. Thank you so much for putting out these videos.

This is incredible! I had no idea it’s possible to explain these things so easily!

@statquest

20 күн бұрын

Thanks!

my teacher took almost 2 hours to explain this and i didn't even get it! THANK YOU I got it in under 10 Minutes !!

@statquest

3 жыл бұрын

Glad it helped!

When I am gonna make my videos, you'll be my inspiration. The way you take us through the video is like a guide taking us through a guided meditation. Edit : and at the end it make us feel satisfied and delightful.

@statquest

3 жыл бұрын

Wow, thank you!

Thank you Josh! As always, it's super fun to watch and learn with your videos.

@statquest

4 жыл бұрын

Hooray! :)

Who also liked the video upon hearing the short musical interlude at the beginning?! Your voice is very soothing. I’m preparing for an exam in about 2hours and needed to understand this concept. Thanks a lot! Every single info in this video came in my exams! I wrote with understanding!!! Thanks!

@statquest

2 жыл бұрын

Thank you very much! :)

Best concept descriptions I have found yet. Explained over-fitting in a better way that my textbook or course have. Hoping for a linear algebra course! Thanks!

@statquest

3 жыл бұрын

Awesome, thank you!

Oh my sweet lord! I couldn't have ever imagined that someone can teach data science concepts soooooooo interestingly and easily. I never ever comment!! But you made me do this first time in my life

@statquest

3 жыл бұрын

Thank you very much! :)

I struggled with the concept for a bit, it became instantly clear to me! Thanks a lot.

@statquest

5 жыл бұрын

Awesome!

Amazing! Explains basic concepts very well, wish I had seen this video when I had no clue about training/testing etc.

@statquest

4 жыл бұрын

Better late than never. :)

I'm so glad I have found your channel, extremely well explained and I was in a good mood from the start because of the epic song.

@statquest

3 жыл бұрын

Awesome, thank you!

there are a lot of teachers that have knowledge , but of them 80 percent dont know how to teach , 10 percent knows but dont care, 8 percent really care but are not succinct with their methods but 2 percent knows how to teach clearly and precisely in layman terms , they can teach anyone with their style , You are in that 2 percent category . Respect >>>>>.

@statquest

2 жыл бұрын

Thank you very much! :)

I just can't explain how much i love your teaching!!! the songs refreshen my mind every time...

@statquest

4 жыл бұрын

Hooray! :)

Oh my god this guy rocks! Clearest explanations for understanding this stuff, by far!

I loved the Tiny Bam, Sir! You Patience to go slow tell us that you have a low bias; meaning, it's easy for non-native English folks to understand the concepts clearly. Keep up the good work. I will stalk your channel and like all the videos you have every made by the end of this week. Thank you Again.

@statquest

4 жыл бұрын

BAM! :)

Your clips really save me from my lack of basic knowledge and fear of machine learning. Horay........... Triple Bam.!!!!

@statquest

3 жыл бұрын

Glad to help!

That clarity I get after watching your videos... ! BIG BAM!

@statquest

2 жыл бұрын

Thank you!

your channel is the best channel I've seen in KZread!!! Look forward for more videos!!!

@statquest

5 жыл бұрын

Thank you so much!!! :)

@hanjiang1106

5 жыл бұрын

would you like to talk about cost complexity pruning when you have time? thank you!

These videos do such an amazing job summarizing concepts that my professor has spend hours trying to explain. I was pulling my hair in frustration at his teaching until I encountered your videos. These videos are like a breath of fresh air to my knowledge and understanding of data science. A huge thanks to you Josh Starmer! Keep up the amazing work!

@statquest

Жыл бұрын

Glad to help!

@joeymediauk

Жыл бұрын

The amount of BS they try to get you to wade through when explaining concepts E.g. Instead of starting with a massive equation and the formal explaination, a simple intuitive explainatiom, then relate that to the formal process

Just saying I've watched only 3-4 of your videos and you have me hooked! Best, concise and simple explanation!

@statquest

3 жыл бұрын

Wow, thanks!

Firstly i like to thank you for explaining these concepts in such a crystal clear manner , this is one of the best video i ever witnessed. second, i request you to please make some video on backpropagation and some tedious concepts of M.L. once again thank you.

I find this crazy that before and after every (very expensive) class now I'm looking up the same info here.... I'm a top-down learner though and my class seems to be built around bottom up learners. Thank you soooo much - yes I'll get a hoodie! #statquestforlyfe

@statquest

4 жыл бұрын

BAM! I'm glad the videos are helpful! :)

Clearly explained, great video! Maybe you skip this on purpose due to its complexity, but there is a small caveat. At the end you mention 'parameter tuning' using cv, these 'parameters' are called hyperparameters, different as model parameters. In order to do so, you need to further split the data into train/validation/test set, and only use train/validation part for tuning, while still having the test set for a final estimation of model performance.

@ahmedatta6508

3 жыл бұрын

please , I have question regarding cv for ridge regression , I will try different (lamnda) in each fold for example (10 different values for lamnda ) with ten folds or should I try each (lamnda) I need to test with all 10 fold and compare in the final between them

Thank you. BOMBASTIC BAM. It's super easy to comprehend. Now I'm gonna share this video like crazy!! BAM BAM BAM

@statquest

4 жыл бұрын

Awesome!!! Thank you very much.

bought 3 of your albums today. I'm a big fan! keep up this awesome channel!!

@statquest

3 жыл бұрын

TRIPLE BAM! Thank you very much! :)

BAAAAAAAM!!! That was awesome expression. Wish you had practical examples worked on MATLAB or Phyton.

ᵗⁱⁿʸ ᵇᵃᵐ

@statquest

3 жыл бұрын

Perfect!

Thank you for simplifying cross-validation concepts. It helps me a ton for my masters. Again, thank you!

@statquest

3 жыл бұрын

Glad it was helpful!

Your videos are very helpful, much practical and simple way to explain concepts. I learned more in your videos than my grad lecture notes. Thank you so much!

@statquest

4 жыл бұрын

Awesome! :)

the easiest video on the Internet to understand this topic :)

Am I the only one who thinks that show casing 2 talents at same time is becoming new phenomenon?

by far the best video explaining this concept. Thank you!!!

@statquest

5 жыл бұрын

You're welcome! I'm glad you like it. :)

You're the best teacher ever! Your videos motivate me not to give up in Data Science!! Thanks a lot!!

@statquest

2 жыл бұрын

Thanks! I'm glad they're helpful.

Given the 1000th like to this video :)

lol at tiny bam

@statquest

5 жыл бұрын

:)

@latoyaclarke6792

4 жыл бұрын

Loool.

One of the most wholesome channels on here; absolutely love it, I'm getting motivated instantly !

@statquest

7 ай бұрын

Thank you!

first time watching your video for an exam, really felt the BAM moment! 👏 you're a wonderful teacher, please keep up the good work!

@statquest

10 ай бұрын

Thank you! 😃

some scientists should take example as you just explain , congratulations JOSH !

@statquest

5 жыл бұрын

Thanks! :)

What you do is simply amazing!!!!! Thank you!!!! Just a tiny question: when you divide your data into blocks which you use as training set, do you use each different block for a different algorithm, or do you use the same training data to train different algorithms? Thank you again!

@statquest

3 жыл бұрын

If you split your data into blocks 1, 2, and 3, then you would train all of your models on blocks 1 and 2 and test with 3. Then you would train all of your models on blocks 1 and 3 and test with 2 and then you would train all of your models on blocks 2 and 3 test with 1. bam.

@sissyspiritosanto8807

3 жыл бұрын

@@statquest Great Josh!!! Thank you very much! This channel is a life saver!

Thanks josh you are the best source for understanding the intuition behind every concept in Statistics and Machine Learning.

@statquest

2 жыл бұрын

Thank you!

You are an AWESOME Teacher !! Thanks a lot for making Machine Learning very easy for us !!

@statquest

3 жыл бұрын

Thank you! :)

BAM that subscribe button!

@statquest

5 жыл бұрын

Double BAM!!! Thank you!

Thank you for the video! Do we need to perform a loss function?

@statquest

5 жыл бұрын

The machine learning method you use might involve a loss function, but, otherwise, you don't need to use one.

OMG this is the first tiny BAM that I encounter in my whole life, I'm schocked!

@statquest

15 күн бұрын

:)

Brilliant! Loved it! Thank you so much for simplifying that, my Friend!

@statquest

3 жыл бұрын

My pleasure!

I watched 50% for ML and 50% for the BAMS!!

@statquest

3 жыл бұрын

BAM! :)

Finally, this youtube algorithm take me here.

@statquest

3 жыл бұрын

Bam! :)

You're amazing. Thanks a lot. With statquest, machine learning is child's play. Thanks Josh, your efforts very much appreciated

@statquest

3 жыл бұрын

Thank you! :)

SUPER BAM!! Awesome explanation and a wonderful sense of presentation to go hand in hand!!

@statquest

4 жыл бұрын

Thank you very much! :)

This shit is legit.

one of the best videos ever i have watched, made machine learning clear only in 1.17 min of the video, you man are very great

@statquest

2 жыл бұрын

thank you very much! :)

this Guy is a G. Just found his channel. one of the Best series of lectures out there. Thanks.

@statquest

5 жыл бұрын

Thank you!!! :)

Really great video ! Concepts are explained with many confidence. Keep it up !!!

@statquest

2 жыл бұрын

Thanks!

best stats tutorial on youtube!!! interesting delivery that sticks

@statquest

4 жыл бұрын

Wow, thanks!

I have been struggling with this concept but you cleared it within 6 mins wow thank you!!!

@statquest

4 жыл бұрын

Hooray! :)

Tiny Bam! Craked me up. Thanks!! These videos are wonderful

@statquest

2 жыл бұрын

BAM! :)

Extremely useful and helpful for me!!! Thank you!!!!

Josh your songs are so relaxing, it is like I´m stressed out, then let´s watch a StatQuest, they always start with those funny songs.

@statquest

4 жыл бұрын

Hooray!! Thank you very much.

Thank you Josh Starmer for your excellent work, I personally enjoy watching your tutorials.

@statquest

6 ай бұрын

Thank you!

Great work Josh, really great explanations and content being explained. thank you

@statquest

4 жыл бұрын

Thank you! :)

New subsciber here, I can't believe I'm late to this channel. THANK YOU SO MUCH. You have explained it in the clearest way possible!

@statquest

7 ай бұрын

Thank you very much! :)

I can't stop watching StatQuest! Thank you so much Josh and I like your silly songs :)

@statquest

2 жыл бұрын

Hooray!

This really was good Thanks for explaining so well ❤❤

Nice and super clear. Best explanation for cross validation.

@statquest

5 жыл бұрын

Thanks! :)

THIS IS SO CLEAR THANK YOU! all the way from Mexico

@statquest

2 жыл бұрын

Muchas gracias!!!

came for the topic, stood beacause of the intro that locked me in! :)

@statquest

Жыл бұрын

Bam! :)

My face hurts from smiling so much at these! Thanks so much! Your videos are so helpful for me to understand my new job!

@statquest

2 жыл бұрын

BAM! And congratulations on the new job. :)

i just found out that this channel is this awesome...BAMM!! and tomorrow is my test DOuble BAMMM!!!

@statquest

2 ай бұрын

Good luck!!

Just as I was getting seriously over my head with K Fold CV for a Numerai model... Lo and behold! My favorite statistical troubadour, Josh, appears to light the way. Bam to every which way you can validate it!

@statquest

4 жыл бұрын

BAM! :)

All the things are crystal clear, you are doing a very good job, you are amazing man....hats off.

@statquest

3 жыл бұрын

Thank you so much 😀

Concise and clear video. Thank you for posting! Bam!

@statquest

5 жыл бұрын

Hooray!!! I'm glad you like the video. :)

BAM! Thank you very much for this valuable piece of content. Cross validation is as clear as water to me now.

@statquest

3 жыл бұрын

bam!

Thanks Josh! Your videos are super helpful. You ROCK!

@statquest

4 жыл бұрын

Thank you so much! :)