Machine Learning Fundamentals: The Confusion Matrix

[@statquest]

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[@TheBluesFlame]

Understood the concept within 2 mins, something my professor was not able to achieve in a three hour lecture, and this video is free to watch. Thank you for the informative and extremely helpful video!

[@statquest]

Awesome! :)

[@ravimishra8564]

Lol

[@tsunamio7750]

This is the magic of KZbin. Shorter videos are often more information-dense and have "less noise" -> Less text = less things that you will mistakenly focus on instead of the true Banger concept. Teachers spend 30s explaining what we will learn. Everybody misses this part and are confused for th rest of the course. Here, we have a full 2-5min explanation of what we are talking about, then we delve in the subject.

[@LeSandWhich]

MERICA BABY!!!

[@godspowerchukwuma2248]

This is me watching this 5 years after graduating from higher institution and I am understanding it completely for the first time....school was truly annoying, they made even the simplest things feel so complicated and hard to understand

[@katwoods8514]

I realize you should know: half of the time I like your videos, it's not because of the teaching. It's just me loving your songs and how you whisper excitedly "StatQuest!" at the beginning. It's the best!

[@statquest]

bam!!! :)

[@gyulboxing]

If my software venture succeeds, then I hugely owe it to you. Your pedagogical approach in the topic will benefit many individuals/teams like me. Thank you, sir!

[@statquest]

Wow, thank you!

[@etornamtsyawo6407]

Statquest is simply a lifesaver!

[@read89simo]

the Confusion matrix is not so confusing anymore

[@statquest]

Nice! :)

[@thud93factory51]

I see what you did there

[@yv6358]

@@thud93factory51 Everyone can see what he did there.

[@Dineshkumar-bf7wi]

😂😂😂😂

[@thehermitthetower1126]

I'm now double certified in data science, and singly so in digital forensics. I began with stat quest, and I keep using it for refreshers if I have a meeting or interview. Here I am, prepping for possible interview questions that come up a lot.

[@statquest]

Good luck with your interview! :)

[@taheralipatrawala7300]

By double certified you mean dual degree?

[@thehermitthetower1126]

@@taheralipatrawala7300 no, i was in a coding boot camp but they kept dropping the ball so i was stuck waiting for long periods of time while they fixed mistakes and put the curriculum on hold so i enrolled in another course and they both ended up finishing around the same time. Then i enrolled in something else after, all the while i have a growing project portfolio full of cool projects people like discussing, which is pretty big if you are good at the interview stage. Tech is an interesting field in this respect: experience and education are both good, but both is great.

[@braulioandre2918]

What are sort of questions come up a lot during interviews for a data science role?

[@harkirehal258]

Came across Statquest after almost giving up on learning ML. Things are starting to make sense and are fun now! Amazing channel with amazing explanations!

[@statquest]

Great to hear!

[@thepraisejames]

This is the best video on confusion matrix I have watched. Once again, analogies and storytelling to the rescue

[@statquest]

Thanks!

[@venkydk]

The Intro song gives a great relief for us to get rid of confusion...

[@statquest]

:)

[@f.s.8443]

Thank you so much! You explained in 8 minutes what my Data Science Professor took forever to explain. It was so clear and concise.

[@statquest]

Glad it was helpful!

[@JingwenZhou]

You made me start loving maching learning and statistics, thank you!

[@statquest]

Hooray! :)

[@ronyroy2049]

I keep coming back for the BAAAMMMM !!!

[@statquest]

Hooray! :)

[@josevaldes7493]

Thank! I speak spanish and I'm learning english. Your videos are amazing and I'll tried to make videos of statistics in spanish. You are an inspiration to me thanks soo much

[@statquest]

bam! :)

[@SoftwareTICs]

I needed to understand confusion matrix as soon as possible. I learned in less than 10 minutes... great!

[@statquest]

Bam! :)

[@hendsaud134]

I was miserable but you boosted my mood, the intro is on point, BAM!

[@statquest]

bam! :)

[@mahbleh404]

5 years old videos and still super useful and one of the best playlist. thank u for the videos

[@statquest]

Thanks!

[@samarthtandale9121]

Awesome and Easy Explanation !!!

[@statquest]

Thank you!

[@pablouribe1522]

I really liked how you mixed the sentiments in the bams, depending on the results! Great videos!

[@statquest]

Thank you! :)

[@mostinho7]

1:30 To test how each machine learning model performs with our test data, we can use a confusion matrix. Let’s say we have two outcomes from our classification model, either true or false, then the rows can be the predicted values for our model (true and false) and the columns can be the actual truth results of our data (true and false) Data points can be classified by our model as true positive (both predicted and actual are true) or false positive (predicted is true but actual is false) or false negative (predicted is false but output is true) or true negative (predicted is false and actual is false) 4:30 using confusion matrix to compare random forest and logistic regression. 5:15 confusion matrix for multiple class classification, the diagonal represents number of true positives

[@jaiganeshjayaraman]

Mind Blowing Explanation !! Even a primary school kid could understand these concepts. Take a bow, Josh !!!

[@statquest]

Thanks!

[@vivekakaviv]

"In this case the machine learning algorithm didn't do very well, but can you blame it?, These are all Terrible movies!!... BAM" I laughed like hell. Love StatQuest.

[@statquest]

Thank you! :)

[@NM-vw6xq]

BAM!

[@nickgarciacrawford]

HAHAHAH same!!! BAM!!!

[@TheMediinaa]

Very nice, I'm dealing with the Kuzushiji-49 dataset, and so I have a 49x49 confusion matrix. Helped clear things out a lot!

[@statquest]

bam!

[@vijaikannan3143]

WOW .... Beautiful Explanation in a simple and Understandable way with diagrams... Thanks a lot. Helped me a lot to understand in a crystal clear way.

[@statquest]

bam! :)

[@unpatel1]

Confusion Matrix is really confusing but you clearly explained it! Great job, Josh!! Thank you.

[@statquest]

Glad it was helpful!

[@agentanakin9889]

A Harvard course introduced the confusion matrix to me and it was thoroughly confusing. You explained it within the first 2 minutes of this video.

[@statquest]

Awesome! :)

[@thechesslobster2768]

I just want to say thank you so much man, i've been sucking ass in my machine learning class, and you've helped me out so much, I love how you explain things.

[@statquest]

Thank you! Good luck with your class.

[@cajogos]

Woah, this whole confusion matrix finally made sense in my head, only took 6mins! I watch at 1.25x speed ;) gotta learn fast! Thanks a lot Josh, subscribed!

[@statquest]

Hooray! I'm glad the video was helpful. :)

[@achus76]

your videos are so enjoyable, makes it a joy to learn the stuff...esp the BAM :)

[@statquest]

Glad you like them!

[@jessstuart7495]

False Positive - Type 1 Error - Reject a true null-hypothesis. False Negative - Type 2 Error - Fail to reject a false null-hypothesis.

[@lck2978]

Wow very straight forward and clear to understand! I really appreciate the table of contents and bookmarks you've laid out as well. Even for just a short video! There is so much, even too much, information out there on various topics. And too many people just give a talk, pouring out their expertise without considering how fast they're going, where their audience is coming from. I felt that wasn't as much the case here. Great job!

[@statquest]

Thank you! :)

[@londonstudioliving]

Suffering on my CS DEGREE. You are a saviour thanks! totally made this topic clear for me

[@statquest]

I'm glad my videos are helpful.

[@arunavabhattacharya571]

I rewatched the bootcamp recording which explained confusion matrix for 20 minutes and was still left confused until statquest came in an explained the concept in less than 7 minutes. BAM !!!

[@statquest]

BAM!!! :)

[@blessingadeyemi1289]

I was drawn from the get go. The concepts were clearly explained and it was a good watch.

[@statquest]

Bam! :)

[@shinyskystar]

Statquest is here to explain things very well, leaving me worry-free. Thank you, Mosh, for being here.

[@statquest]

bam!

[@blessinglotus]

Thank you for explaining the Confusion Matrix! This is super helpful. I keep coming back for more of your videos! THANK YOU.

[@statquest]

Glad it was helpful!

[@whomisac4616]

I come back for the BAM.

[@yangwang6805]

Very clearly explained, thank you! As good as always!

[@statquest]

Hooray! :)

[@Test-vj4ee]

¡Gracias!

[@statquest]

De nada!!! Thank you for supporting StatQuest!!! TRIPLE BAM! :)

[@lawrencetaulk7898]

you made me so clear with Confusion Matrix. Great job, BAM .

[@statquest]

Glad it was helpful!

[@etornamtsyawo6407]

I didn't sweat it at all! I just moved to youtube and searched: Statquest confusion matrix 😀😀😀

[@statquest]

TRIPLE BAM! :)

[@wanderingseeker2932]

Guy just simplified "THEEE CONNFFUSION MAATTRIXX" (reverberating sound) Thanks Josh :)

[@statquest]

bam! :)

[@akashdeep5088]

Sir, I am from India , I was enrolled in a Data Science programme which costed me 45k the python and SQL courses were nice but then also I had to put a lot of effort mastering it , but the ML classes was not at all good, currently my class is going on ML when I am writing this comment but I am not attending it and rather watching your video , I don't want to waste my time there just to satisfy myself that I have paid a huge amount of money rather I want to utilise my time into the video where I can really understand something. Lastly I want to thank you for providing such awesome content , currently I am not working so I have some limitation for spending money, but when I will get a job in data Science and ML I will surely contribute to this channel ."Thank You Again ....." Love from INDIA . " Jai Shree RAM "

[@statquest]

Thank you and good luck with your course! BAM! :)

[@PSTWFB]

#confusion#matrix#machinelearning#deep#precision#recall F1 #score#accuracy#true#positive #negative! kzbin.info/www/bejne/j52pmKaXrcaajpI

[@fedriknefario]

hey this is my first time watching your video, and thank you for your explanations about confusion matrix i like it. i'm still student

[@statquest]

Glad it was helpful!

[@NastyMonke]

I have no idea how such a beautiful content have so low views and subscribers. Josh, you da best my man ❤

[@statquest]

Thanks!

[@KIMNEG]

Unconfused way of explaining the Confusion Matrix. Thanks !!!

[@statquest]

Bam! :)

[@yudhisthirsingh8401]

The matrix returned by the sklearn's confusion_matrix is in opposite order. Just wanted to point it if someone is thinking, got me confused for a little while. Great explanation Josh!

[@statquest]

Yep, I originally based this on a confusion matrix that I got from R. Different APIs give different orientations.

[@shivamsood8385]

awesome explanation. loved the BAM!!

[@statquest]

Glad you liked it!

[@tsunamio7750]

My terrible joke apart, your explanations are wonderful. I can't thank you enough! Done once, forever and for everyone. Who knows, your name might survive the corroding waves of history. A little something often takes unexpected proportions, even long after the author is gone.

[@statquest]

Thanks! :)

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you are a great teacher no can match your standard at least on youtube

[@statquest]

Thank you very much! :)

[@nossonweissman]

Your content is so beautiful, it makes me want to cry

[@statquest]

Thank you!

[@BMSKARATE]

Me: learning ML and trying decision trees. YOU: explaining exactly what I'm doing step by step in 1 video.

[@statquest]

bam! :)

[@AlphaVijayan]

Its very clear and easy to understand. God bless you sir

[@statquest]

Thank you!

[@Redox_Adi]

Thanks for helping me to get out of this problem,as today is my Artificial intelligence exam,love from India.

[@statquest]

Good luck! :)

[@gabrielkalb]

this series of videos are just amazing, thank u so much

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Thank you!

[@DataScienceAI-rf4kx]

revise the concepts ! hooray ! tiny bam , big bam!! love you joshu

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:)

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Gotta smash that like and subscribe button, this channel is golden.

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Thank you!

[@NM-vw6xq]

I'm here for the BAM! ... and awesome learning experience.

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BAM! :)

[@cruzmonte4614]

Best channel, duly explained

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Thanks!

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OMG!!! You explain each and everything very explicitly.. Thanks buddy. I Subscribed...

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Hooray! Thank you! :)

[@editedrectangle1385]

I hope your knowlege and wisdom can help me ace my sem finals and get my degree

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Good luck!

[@npraneeth5844]

Very clean and clear cut explanation👍🏻

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Thank you!

[@suixinTHU]

Bam... I found your video and it made my day....

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Hooray! :)

[@wasifallvi5468]

Superv Explanation, Understand it very well. Thanks a lot StatQuest

[@statquest]

Glad it was helpful!

[@ceciliaserafini]

BAM!!! Thank you! Original and clear explanation!

[@statquest]

Hooray! You're welcome. :)

[@pranavpatil.7]

What an amazing video with the perfect explaination

[@statquest]

Thank you! :)

[@pranavpatil.7]

@@statquest I should be thanking you for saving me on my exam-day! 😄 Thanks! Btw you still liking and replying to comments on an old video is a sign of a truly grateful and humble KZbinr!❤️

[@statquest]

@@pranavpatil.7 Good luck with your exam! I hope it goes well. :)

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This video saved my life. Thank you so much

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Bam! :)

[@moones2012]

감사합니다!! thank you... this video is really helpful for my categorical data analysis class.. from south Korea,,,,,,,,,,,,,,,,,

[@statquest]

Thank you! If you like this video, check out the korean translation of my book: www.yes24.com/Product/Goods/117173369

[@jessssssie]

your explanation is fabulous!!!!

[@statquest]

Thank you! :)

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This helped so much right when I needed to know this!!

[@statquest]

Bam!

[@MrKingoverall]

I love StatQuest, StatQuest I love.

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BAM! :)

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Thank you! This clarified a new concept for me once again!

[@statquest]

bam! :)

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I laughed at that < bam. > I am a big fan of your BAM videos! lool

[@saranayakumar]

Why didn't I stumble upon your videos earlier. Quality content.

[@statquest]

Thank you!

[@jessiedeemarkgingo6074]

Thank you for making confusion matrix not confusing at all. :)

[@statquest]

Thanks! :)

[@ming8238]

This video helped me a lot. Thank you so much.

[@statquest]

Thanks!

[@pricillajeyapaul]

thank u so much.i am so messed up with this topic.un explained me very easily

[@statquest]

Happy to help

[@pricillajeyapaul]

@@statquest :))))

[@Pilotamericano]

thanks! this was very informative and fun and easy as well

[@statquest]

Glad it was helpful!

[@Bjorn_R]

Man Im going through grueling hours of datamining in my masters. I keep thinking am I just not interested? or does it have to be this hard and boring?. And in comes Josh Starmer and clears the topic in mere minutes. Bought your book by the way. Hope you go into the math in there, Looking at math formulas is like reading hebraic to me

[@statquest]

Thank you! And thank you for supporting StatQuest! BAM! :)

[@PSTWFB]

#confusion#matrix#machinelearning#deep#precision#recall F1 #score#accuracy#true#positive #negative! kzbin.info/www/bejne/j52pmKaXrcaajpI

[@sayak]

BAM! that cleared the confusion. Double BAM!

[@statquest]

YES! :)

[@amitshah1651]

Trillion BAM. Wonderful Guru, Fun learning.

[@statquest]

Thanks!

[@PunmasterSTP]

I think the term "confusion matrix" just sounds cool!

[@statquest]

Totes!

[@brpawankumariyengar4227]

Yet another Amazing Video ….. 👍🏻👍🏻👍🏻

[@statquest]

Thank you so much 😀

[@kiouria90]

You are the best by far!

[@statquest]

Thank you!

[@maryameboutkhil6909]

Thank you so much for your explanation! Very very informative and easy to understand!

[@statquest]

Glad you enjoyed it!

[@robertkissinger6050]

StatQuest is my hero 🎹

[@statquest]

Thanks!

[@timepassbox]

Great 👍🏻🎉 Thanks for your support and Video

[@statquest]

Thanks!

[@nicoleluo6692]

Bam!!! I fully understand now. Thank you!

[@statquest]

Bam! :)

[@badoiuecristian]

Note! In skelearn, confusion_matrix is the other way round. Actuals are on the left and predicted on top. Just in case your model preforms amazing.. for some reason :))

[@statquest]

True!

[@venkteshmutalik2518]

Great Video , Thank you . Really helped .

[@statquest]

You're welcome!

[@BySixa]

Thank you. This has really helped me

[@statquest]

bam!

[@hadishaaben3665]

thanks for the clear explanation

[@statquest]

Thanks!

[@amralaarag4563]

Really very good explanation , Thank you :)

[@statquest]

Glad it was helpful!

[@keepflying7137]

Such a wonderful explain

[@statquest]

Thank you! :)

[@MehmetMustafaICER]

Very good explanation. Thanks.

[@statquest]

Thank you!

[@afkghost9758]

I'm so so glad that Howard the Duck was not in the Confusion Matrix as you declared the other movies in the matrix terrible. Because Howard the Duck is the greatest movie ever made. Ever. After Trollhunters...

[@statquest]

Ha! Howard the Duck is a.... unique movie. ;)

[@samnguyen-nhp]

Woww what a nice chanel, i wish i met you sooner. Thank you very much.

[@statquest]

Thanks!

[@ajinkyaadhotre5336]

need an extended version of the intro song , i loved it ! :D

[@statquest]

Ha! Thanks! :)

[@bashiransari6258]

the best on internet

[@statquest]

Thank you!

[@msctube45]

Thank you for this informative and well explained video.

[@statquest]

Thanks!

[@masterpogi1818]

I love your short intro music, keep it 👆 up

[@statquest]

Thanks, will do!

[@Opkopen]

The whisperr at first is very addictive.. 😂 statsquest

[@statquest]

bam! :)