Bias-Variance Tradeoff : Data Science Basics

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  • Опубліковано 1 лис 2020
  • What is the bias-variance tradeoff and why is it crucial to data science?

КОМЕНТАРІ • 146

  • @mathieutorchia178
    @mathieutorchia178 2 роки тому +33

    The value that you put out for free is INCREDIBLY appreciated. You are seriously helping so many students and professionals through your videos. Thank you so much on behalf of all of us.

  • @thefuzedout
    @thefuzedout 2 роки тому +11

    I don't think I've ever commented on an educational video in my 22 years cause I'm always left with a doubt at the end, but this video genuinely helped me understand the terms in detail! Thank you ritvik

  • @zuhail1519
    @zuhail1519 Місяць тому

    As always Ritvik never disappoints when it comes to breaking down a concept without relying on mathematical equations, and still giving the best overview of a concept in the most generalized way possible. Thank you!

  • @AdityaSharma-do1ho
    @AdityaSharma-do1ho 3 роки тому +6

    Hey Ritvik, I like the way you try to build up the intuitive sense around maths rather than focusing on the theorems! Great work!

  • @Aldohmie
    @Aldohmie 2 роки тому +10

    Oh my days, I struggled for the past 3 days trying to understand this concept. It all makes sense now! Thanks a ton!

  • @jannatulferdaush377
    @jannatulferdaush377 Рік тому +1

    The best video on internet about Bias Variance. Since I am interested in machine learning, I have watched hundreds of video on this topic, but haven't understood much. But your video made it easy for me. You saved my life. Thanks a lot man. I pray for your good health & wealth

  • @danspeed93
    @danspeed93 2 роки тому

    One of the clearest explanations of this tradeoff I've seen so far, thanks!

  • @DigitalOutlawed
    @DigitalOutlawed 2 дні тому

    Man, Thanks so so so so much, you have no idea how much time you save us students.

  • @HonestConsulting
    @HonestConsulting 3 роки тому +16

    Hey bro.
    You make excellent videos. Keep up the good work.

  • @nicowww89
    @nicowww89 2 роки тому

    I think you nailed it by clearly showing how model prediction vary based on the training data. Most bias-variance explanations out there never really make it clear that you're looking at the same model trained on different data
    Great job!

  • @cara1362
    @cara1362 2 роки тому +1

    Just wanted to say thank you. All of your videos I have watched are pretty understandable. I'm reviewing those terminology concepts and prepare my coming interview. If it's possible, I'm looking forward to seeing your video about L1 and L2 explanation or the overfitting solution.

  • @rahulahuja1412
    @rahulahuja1412 2 роки тому

    The pen-toss - finger-snap combo at the end was fun. 😄
    Truly appreciate this succinct summary of the concept; served as a wonderful refresher.
    Saving this in a revision playlist.

  • @Boringpenguin
    @Boringpenguin 2 роки тому

    Thank you so much. This is by far the clearest explanation I have ever come across on this topic!

  • @Moongchilove
    @Moongchilove Рік тому

    Appreciate the video. What a intuitive, straight-to-the point lecture in a perfect play time

  • @thepresistence5935
    @thepresistence5935 Рік тому +1

    This is the only video, I learnt about bias-variance tradeoff

  • @DarkShadow-tm2dk
    @DarkShadow-tm2dk 3 роки тому +3

    Bagging and Boosting ❤️
    Can u please part 2 for this video with mathematics bcoz you really are good at explaining complex things I understood pca fully bcoz of u

  • @honeyBadger582
    @honeyBadger582 3 роки тому +1

    One of the best DS tutors out there. Keep it up!

  • @stanlukash33
    @stanlukash33 2 роки тому

    And here I am - coming back to your videos even after finishing an ML course.
    Thank you

  • @subhankarghosh1233
    @subhankarghosh1233 4 місяці тому

    You are AWESOME...
    The fun part is,
    I grasped this concept earlier from some text but when I was reading some other resources about some other topics they also brought up the bias variance. From those explanations, I got completely confused and started to doubt my understanding itself.
    Thanks for your effort. It really helped me bring back my confidence.

  • @dharmharley6871
    @dharmharley6871 2 роки тому

    Pleasantly surprised to see this good of content on youtube!

  • @justin.c249
    @justin.c249 Рік тому

    Very well explained! Great work!

  • @mateoricucci1285
    @mateoricucci1285 3 роки тому +1

    This is the best youtube video I've ever seen. Thank you so much

  • @monazaizan947
    @monazaizan947 8 місяців тому

    Wow!! Very well explained!! I appreciated your effort. It is not easy to put all these together perfectly! Thank you so much!

  • @jayneabrown
    @jayneabrown Рік тому

    You are an absolutely incredible teacher!

  • @ramiscanyakar5078
    @ramiscanyakar5078 Рік тому

    amazing video pure informations well done thanks ritvik

  • @tymothylim6550
    @tymothylim6550 2 роки тому

    Wonderful video! Never really understood these terms when studying until now :) Thanks a lot!

  • @liamtarr
    @liamtarr 3 роки тому +6

    I really enjoyed this explanation. This is a must watch for anyone who wants to start working with machine learning.

    • @ritvikmath
      @ritvikmath  3 роки тому

      Glad you enjoyed it!

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      @telugujack5562 3 роки тому

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  • @harrywilkinson4826
    @harrywilkinson4826 Рік тому

    This was a fantastic explanation. Thanks for the clarity!

  • @arkophredy6836
    @arkophredy6836 Рік тому

    The explanation was super!!! Thanks for sharing this

  • @ArunKumar-yb2jn
    @ArunKumar-yb2jn 2 роки тому +1

    A wealth of wisdom in a nugget!

  • @fluxqubit
    @fluxqubit 2 роки тому

    That's one great overview! Thanks!!

  • @DrNoureddinSadawi
    @DrNoureddinSadawi Рік тому

    Great explanation Ritvik, thank you!

  • @sarfrazjaved330
    @sarfrazjaved330 2 роки тому +1

    Hey @ritvikmath,
    This man is genius. He explains the complex stuffs so simple.
    Hats off sir.

  • @amyliu2777
    @amyliu2777 11 місяців тому

    This makes so much sense! Thank you for the awesome explanation.

  • @jackvaughan7265
    @jackvaughan7265 Рік тому

    Made this crystal clear. Thank you for this content

  • @aniket1983
    @aniket1983 3 роки тому

    Thank you so much....this was one of the best explanation of variance- bias...again Thank you so much for all your videos...Respect...

  • @augustoc.romero1130
    @augustoc.romero1130 3 роки тому

    Write a book about simply explained data science. You're great at explaining things intuitively and am sure you'll have a market for such a thing. Thanks for your vids bro.

  • @yakovsushenok4009
    @yakovsushenok4009 2 роки тому

    Simply explained is best for intuition

  • @soajack
    @soajack 2 роки тому

    Great explanation ! Thanks !

  • @chuckyneoable
    @chuckyneoable 2 роки тому

    Awesome explanation. Sincere thanks

  • @andreyb7419
    @andreyb7419 2 роки тому

    Love such an easily explained complex stuff! Thx a lot!!!

  • @anjamisimovic9214
    @anjamisimovic9214 10 місяців тому

    you are just GREAT dude... you explained it sooooooo nicely i cant believe

  • @shubhamsharma-ne2ke
    @shubhamsharma-ne2ke 2 роки тому

    "Obviously", this is the best explanation of bias and variance.

  • @user-ru2pj7lk8u
    @user-ru2pj7lk8u 2 роки тому

    Best explanation on this topic! Thank you!

  • @derekfun75
    @derekfun75 3 роки тому +2

    wow. You are so good! You really help me understand the concept completely!

  • @omarz8390
    @omarz8390 Рік тому

    excellent presentation for boas and variance. Thank you

  • @AriaHarmony
    @AriaHarmony 2 роки тому

    Thank you very much this's exactly what I needed.

  • @ryansandan7897
    @ryansandan7897 2 роки тому

    this is the best explanation!

  • @r.walid2323
    @r.walid2323 8 місяців тому

    Thank you, what a great explanation

  • @keremaksoy8007
    @keremaksoy8007 2 роки тому

    Dude, u are a perfect teacher

  • @houyao2147
    @houyao2147 3 роки тому +1

    very clear about the definitions of variance and bias. It tells sth. about many models, not one.

  • @woowooNeedsFaith
    @woowooNeedsFaith 3 роки тому +1

    Subtitles of this video are rally nice. Without it I wouldn't known you speak Korean.

  • @navanarun
    @navanarun 11 місяців тому

    Thanks for simplifying such a complex topic!

  • @peterc.2301
    @peterc.2301 Рік тому

    Absolutely Perfect!!!

  • @estagidados302
    @estagidados302 2 роки тому

    great explanation. thank you, master

  • @mosama22
    @mosama22 2 роки тому

    One more GREAT video, really don't know what to say man, thank you :-)

  • @yuckbutyup
    @yuckbutyup 3 роки тому

    Thank you for the video, great job! But I have a question that based on my understanding, variance here should be the difference between prediction accuracy from different test data set. Please correct me if I am wrong. Thanks again for the video, love it.

  • @jwdex
    @jwdex 3 роки тому

    Thank you so much! Great explanations, wish I would've watched this sooner

  • @mrbeancanman
    @mrbeancanman 2 роки тому

    really great explaination thanks!

  • @Tyokok
    @Tyokok 2 роки тому

    Thanks for the great video! One question Sir, do you also have a video of mean square error decomposing to Bias + Variance? I am confused in why some expectation are constant, and what the expectation over of. Thank you so much!

  • @karimmohanad2k01
    @karimmohanad2k01 5 місяців тому

    Thanks for the effort!

  • @samirhajiyev6905
    @samirhajiyev6905 2 роки тому

    Excellent explanation

  • @kushagraagrawal7292
    @kushagraagrawal7292 2 роки тому

    FFS my university is filled with world famous research professors that dont know how to teach and couldnt explain this concept in hours of lecture :( thank you so much!

  • @kalinduabeysinghe8917
    @kalinduabeysinghe8917 3 місяці тому

    Brilliant explanation

  • @ChocolateMilkCultLeader
    @ChocolateMilkCultLeader 2 роки тому

    Fantastic explaination

  • @ataulmorshed3964
    @ataulmorshed3964 2 роки тому +1

    The wow part was the explanation on contribution of each model to learn the average 'signal' (true pattern) and 'noise' of a data.

  • @alejandrocanada2180
    @alejandrocanada2180 8 місяців тому

    what a great video, thank you very much

  • @ebateru
    @ebateru 3 роки тому +1

    Great video man! Tnx a bunch!

  • @SPeeDKiLL45
    @SPeeDKiLL45 2 роки тому

    man so good explained really.

  • @699ashi
    @699ashi 3 роки тому

    Yes, I did intuitively understood the concept. Thanks

  • @mango-strawberry
    @mango-strawberry 2 місяці тому

    wow. perfectly explained. holy moly

  • @xavecoding
    @xavecoding 2 роки тому

    Amazing explanation... tkx a lot

  • @ariellise
    @ariellise 2 роки тому

    very clean explanation

  • @jakubjan44
    @jakubjan44 7 місяців тому

    Really good explanation

  • @mprawesh
    @mprawesh Рік тому

    My course book definition was so confusing but you made it so clear. Thank You!

  • @leonhardolaye-felix8811
    @leonhardolaye-felix8811 Рік тому

    Amazing video

  • @P4ExHzLRuuiFMg3X4U3v
    @P4ExHzLRuuiFMg3X4U3v Рік тому

    Great presentation!
    You mentioned that complex models have a tendency to pick up both real patterns and noise from the dataset they are trained on, so their predictions are all different (high variance) due to the noise, but correct on average.
    I'm wondering, if you have a very large dataset, why isn't it viable to train the same very complex (strongly overfitted) model on N chunks of the dataset and use the average prediction of these N models?

  • @prathammehta4290
    @prathammehta4290 Рік тому

    Well Explained!!

  • @smilingbread22
    @smilingbread22 3 роки тому +5

    I like how u explain it, can u make videos about LASSO, SCAD and MCP, I still confused about them..

    • @ritvikmath
      @ritvikmath  3 роки тому +1

      I do have a LASSO video:
      ua-cam.com/video/jbwSCwoT51M/v-deo.html
      And thanks for the other suggestions!

  • @zephyrsurfteam
    @zephyrsurfteam 3 роки тому +1

    Well said! Keep up the good work.

  • @MNCAMANI15
    @MNCAMANI15 3 роки тому

    This man is amazing.

  • @diegososa5280
    @diegososa5280 3 роки тому

    Thank you very much, as always spot on

  • @sameerpatel4731
    @sameerpatel4731 3 роки тому +1

    Excellent explanation - thank you for this video

  • @sairabaig7272
    @sairabaig7272 3 роки тому +1

    Sir great explanation, plz make videos on statistical inference

  • @alexcessy
    @alexcessy 3 роки тому +1

    Great explanation

  • @Werdnabae
    @Werdnabae 2 роки тому

    love the marker flip at 5:39 LOL

  • @user-or7ji5hv8y
    @user-or7ji5hv8y 3 роки тому

    Recommend future video suggestion: Fisher Information.

  • @canernm
    @canernm 3 роки тому +1

    Very good video. Thanks!

  • @AhmedKhaliet
    @AhmedKhaliet 2 роки тому

    Thanks alot 👏👏

  • @arrozenescau1539
    @arrozenescau1539 Рік тому

    wow you make it so easy to understand

  • @GeoffryGifari
    @GeoffryGifari 2 місяці тому +1

    So should we strive to optimize the _product_ of bias and variance?

  • @andrzejserafin2758
    @andrzejserafin2758 2 роки тому +1

    thanks that helped a lot

  • @SSabeshVishwanathmmb
    @SSabeshVishwanathmmb Рік тому

    Thank you so much]

  • @dharmharley6871
    @dharmharley6871 2 роки тому

    Genious!

  • @reee896
    @reee896 2 місяці тому

    Awesome

  • @janarthananpoornavel
    @janarthananpoornavel 3 роки тому +1

    Thanks a lot ritvik

  • @mehadiyasameer198
    @mehadiyasameer198 2 роки тому

    thank you

  • @aniksarker7016
    @aniksarker7016 2 роки тому

    Perfect

  • @AbbaBiavati
    @AbbaBiavati 3 місяці тому

    Thanks!!

  • @mattetor6726
    @mattetor6726 Рік тому

    Thank you!