The Math Behind Bayesian Classifiers Clearly Explained!

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  • เผยแพร่เมื่อ 28 ก.ค. 2024
  • In this video, I've explained the math behind Bayes classifiers with an example. I've also covered the Naive Bayes model.
    #machinelearning #datascience
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ความคิดเห็น • 85

  • @BrianAmedee
    @BrianAmedee 4 ปีที่แล้ว +49

    'Clearly Explained' - and it actually was. Thanks man

  • @hayleyH997
    @hayleyH997 2 หลายเดือนก่อน +2

    How he manage to explain something that a 1-hr lecture couldn't! Thanks mate

  • @pradyumnabada5118
    @pradyumnabada5118 ปีที่แล้ว +10

    Dude.. I lost count of the videos I watched to understand this but lastly, after seeing your video the struggle ended. Thank you so much!

  • @jaster_mereel7657
    @jaster_mereel7657 3 ปีที่แล้ว +28

    This was a very clear explanation indeed. Thank you!

  • @bluestar2253
    @bluestar2253 3 ปีที่แล้ว +20

    One of the best explanations I've ever seen!

    • @NormalizedNerd
      @NormalizedNerd  3 ปีที่แล้ว +1

      Thanks mate! Keep supporting...

  • @parisaghanad8042
    @parisaghanad8042 2 ปีที่แล้ว

    That was great! I'm really glad that I found your channel. Thanks a lot 👍👍

  • @guangruli4486
    @guangruli4486 2 ปีที่แล้ว +3

    Very clearly explained, thank you!

  • @sopegue
    @sopegue 2 ปีที่แล้ว

    It was clearly explained as mentionned in the title. Thanks a bunch !!!

  • @sye9522
    @sye9522 3 หลายเดือนก่อน

    HUGE thanks for perfectly delivering the whole concept in one video bro!!

  • @EduAidClassroom
    @EduAidClassroom 2 ปีที่แล้ว +2

    LOVED IT!!!
    Awesome Explanation! Can't thank you enough...

  • @dannysammy8972
    @dannysammy8972 2 ปีที่แล้ว +2

    Yes, this was actually well explained. Thank you :)

  • @jefersondavidgalloaristiza3410
    @jefersondavidgalloaristiza3410 8 หลายเดือนก่อน

    Very nice explanation and perfect illustrations!!

  • @leolei9352
    @leolei9352 2 ปีที่แล้ว

    Very clear explanation!

  • @aurorasart9458
    @aurorasart9458 3 ปีที่แล้ว +1

    Thank you very much for your work! Nice explanation!

  • @miusukamadoto6805
    @miusukamadoto6805 ปีที่แล้ว

    Thank you very much for the video. Clearly explained indeed, the only part I couldn't get completely was the discretization.

  • @swethanandyala
    @swethanandyala 2 ปีที่แล้ว

    very nice explanation thank you so much

  • @user-wr4yl7tx3w
    @user-wr4yl7tx3w ปีที่แล้ว

    This is really well explained.

  • @sobana653
    @sobana653 ปีที่แล้ว

    Nicely explained!

  • @nikolai228
    @nikolai228 4 หลายเดือนก่อน

    Amazing video. thanks.

  • @sayonsom
    @sayonsom ปีที่แล้ว +1

    Great explanation :)

  • @dzmitryk9658
    @dzmitryk9658 2 ปีที่แล้ว

    Awesome! Thank you.

  • @fmt2586
    @fmt2586 2 ปีที่แล้ว

    hey, thanks man, very clear explanation.😀😀

  • @thebjjtroll6778
    @thebjjtroll6778 2 ปีที่แล้ว

    Amazing teaching skills

  • @telusukondifirstuu9221
    @telusukondifirstuu9221 2 ปีที่แล้ว

    I love this Exolaination 😍🥰😘
    Thanks a lot ❤

  • @atulyadav9712
    @atulyadav9712 2 ปีที่แล้ว

    Great explanation

  • @arielalvarez88
    @arielalvarez88 3 ปีที่แล้ว +1

    Really good work, congrats

  • @vojinivkovic9533
    @vojinivkovic9533 2 ปีที่แล้ว

    great explanation

  • @dpaul3447
    @dpaul3447 ปีที่แล้ว +1

    Thank you so much man!!

  • @hasben0
    @hasben0 ปีที่แล้ว

    Well done👊👊

  • @mehditavakoli2492
    @mehditavakoli2492 ปีที่แล้ว

    Thank you!

  • @radoyapanic998
    @radoyapanic998 2 ปีที่แล้ว +1

    In the last part of the video you said we can fit a known distribution to a continuous set of data. However, you continued to then write that the probabilities can be calculated by taking the product of the pdf evaluated at different values of the feature and label. The pdf does not provide probabilities however, as it needs to be integrated to inform one of the probabilities of an event. This part of the video seems imprecise.
    However, the video in general was great. Thanks.

  • @sumedha1051
    @sumedha1051 ปีที่แล้ว

    love this!

  • @adityaprasad3356
    @adityaprasad3356 ปีที่แล้ว +1

    very helpful🥺🥺

  • @SarahGhiyasi
    @SarahGhiyasi ปีที่แล้ว

    Thank u it was great.

  • @daniilsukhovv
    @daniilsukhovv 3 ปีที่แล้ว

    bro, best explanation I could find

  • @user-or7ji5hv8y
    @user-or7ji5hv8y 3 ปีที่แล้ว

    Great explanation.

  • @MrDaniel560
    @MrDaniel560 ปีที่แล้ว

    HELPFUL!!!!

  • @prar_shah
    @prar_shah 2 วันที่ผ่านมา

    Love this

  • @lucasqwert1
    @lucasqwert1 11 หลายเดือนก่อน

    in the last part at minute 11: What is the function f to fit a known distribution? Thank you for answering!

  • @aditya.singh9
    @aditya.singh9 3 ปีที่แล้ว

    truly amazing

  • @noname-anonymous-v7c
    @noname-anonymous-v7c 5 หลายเดือนก่อน

    9:37 you made conclusion based on P(X=[0,2] | Y), I think the correct way is to calculate P(Y|X=[0,2]). In case P(Y=1) is very small, the answer can be Y=0.

  • @nickgannon7466
    @nickgannon7466 2 ปีที่แล้ว

    well done

  • @AnasHawasli
    @AnasHawasli 5 หลายเดือนก่อน

    Great video man great
    herre is a sub

  • @imadeit6587
    @imadeit6587 3 ปีที่แล้ว +1

    I am appreciate your work

  • @DANstudiosable
    @DANstudiosable 4 ปีที่แล้ว +1

    Well explained, a quick revision for Naive bayes. I forgot why it was called Naive until i watched this video 😂😂

  • @zouhir2010
    @zouhir2010 3 ปีที่แล้ว

    thumbs up
    thanks

  • @PritishMishra
    @PritishMishra 3 ปีที่แล้ว +1

    If I search for any ML Algorithm I just first check your channel If you have created the video on the same... You are my first preference for ML/DL Algo Explanation. Just a request please make a video on Deep Learning Algorithm too like CNN, RNN & LSTM "from scratch". It will really help people who want to become practitioners in AI like me.

    • @NormalizedNerd
      @NormalizedNerd  3 ปีที่แล้ว +1

      Thank you so much ❤
      Writing CNNs and RNNs from scratch are pretty hectic...maybe some day I'll try.

    • @PritishMishra
      @PritishMishra 3 ปีที่แล้ว

      @@NormalizedNerd Waiting... you are our only hope who can teach us Mathematics of ML with cool animation, That's why requested you! Thanks.

  • @muhammadzubairbaloch3224
    @muhammadzubairbaloch3224 4 ปีที่แล้ว +3

    sir please more lectures.
    I am seeing after too days later your lectures
    made some advance NLP and CV lectures or AI lectures thanks

    • @NormalizedNerd
      @NormalizedNerd  4 ปีที่แล้ว +1

      I will try my best to upload more frequently.

  • @aymericalixe1310
    @aymericalixe1310 3 ปีที่แล้ว +4

    Maybe i'm wrong but I think the hypothesis is not that X1 and X2 are independant but that X1 and X2 are conditionnaly independant. It was very clear otherwise thank you !

    • @NormalizedNerd
      @NormalizedNerd  3 ปีที่แล้ว

      In naive Bayes every feature is treated as an independent feature that's why it's called naive.

    • @chitranghosal879
      @chitranghosal879 ปีที่แล้ว

      I think the hypothesis is that you assume each feature to be (w.r.t other features)
      1) globally independent (in the global sample space)
      2)conditionally independent w.r.t the occurence of each class label (under the subset sample space where the particular class event has occured)
      If these assumptions are not met, then it does not seem possible to build the mathematics, because as far as I see,
      if events A and B are independent, that does not naturally imply conditional independence between events (A|C) and (B|C)

  • @high_fly_bird
    @high_fly_bird ปีที่แล้ว

    The explanation is so cool! But it would be even cooler if you added some examples with continious features and fitting a distribution, this part wasn't so clear...

  • @mahirjain8898
    @mahirjain8898 8 หลายเดือนก่อน +1

    so goood

  • @sayantansadhu6380
    @sayantansadhu6380 4 ปีที่แล้ว +2

    It was like a revision for class 12 probability 😁😁

    • @NormalizedNerd
      @NormalizedNerd  4 ปีที่แล้ว +1

      Yeah simple yet effective concept.

  • @signature445
    @signature445 3 ปีที่แล้ว +1

    Sir is this like
    Bayesian classifier deals with conditional probability ?
    Naïve bays classifier deals with joint probability ?
    Thanks in advance.....

  • @joaomatheusnascimentogonca7633
    @joaomatheusnascimentogonca7633 21 วันที่ผ่านมา

    10:51 How does this work? wouldn't the probability that Xi = xi be zero, given we're using a continuous distribution? Because of the "=" sign

  • @quanghuynh1570
    @quanghuynh1570 ปีที่แล้ว

    you saved me

  • @Fuktron13
    @Fuktron13 2 ปีที่แล้ว

    I wish you were my professor

  • @kunalsoni7681
    @kunalsoni7681 11 หลายเดือนก่อน

    Nice ⭐⭐⭐⭐⭐

  • @Ilham-lj3me
    @Ilham-lj3me ปีที่แล้ว

    and how aboit gaussian NB?

  • @plumSlayer
    @plumSlayer ปีที่แล้ว

    You areee Amazing. I love your Indian Bengali accent ( just a guess hehe make me a voice analyzer if i am right XD
    )

  • @harshitdtu7479
    @harshitdtu7479 3 หลายเดือนก่อน

    10:37

  • @xritzx
    @xritzx 4 ปีที่แล้ว +1

    3b1b's bro is here

  • @pushandeb187
    @pushandeb187 9 หลายเดือนก่อน

    liked that

  • @abdulkarim.jamal.kanaan
    @abdulkarim.jamal.kanaan 3 ปีที่แล้ว

    Hello people from the future! :D

  • @anon_148
    @anon_148 2 ปีที่แล้ว

    independant moment

  • @davidmurphy563
    @davidmurphy563 9 หลายเดือนก่อน

    Ok, I've given up on the video after 45 secs. You said "stated clearly", if you hadn't I'd have kept watching.
    You point to an array of features called X. What are they? Are they features of the array itself (its size / rank / dimension?), are they features of the thing the array of describing (measurements in a house?), or a list of possible attributes (the ingredients on a pizza?) Then you introduce a label. So what, is this like a python dictionary?
    Plus, I've no idea what sort of issue we're supposed to be tackling? Is it probability? Is it rationality with limited knowledge? I only guess that because I've heard of Bayes before.
    Instead you launch into calculations when I have not the first idea what you're calculating. Why would I listen to that?
    Tell you what, I'll give it another 30 secs. If there's no illustrative example / clear explanation of what the hell you're covering I'm gone.

    • @davidmurphy563
      @davidmurphy563 9 หลายเดือนก่อน

      Nope, 30 secs later and it's absolute horseshit.

  • @mahedihassanrafin7493
    @mahedihassanrafin7493 9 หลายเดือนก่อน

    just quit confusing people