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Bagging and Boosting 

Machine Learning- Sudeshna Sarkar
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21 окт 2024

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Комментарии : 36   
@uchennanwosu5327
@uchennanwosu5327 2 года назад
You are absolutely the best teacher I have run into since my foray intyto data science. Bravo!
@tigrayrimey6418
@tigrayrimey6418 3 года назад
Correction! @8:30: The probability of an instance getting excluded or being not selected in the nth draw is: (1-1/n)^n. So, it needs a little bit of correction.
@umang9997
@umang9997 2 года назад
True!
@capuleto126
@capuleto126 6 лет назад
Thank you, dear Sudesha. It is very good to see women teaching ML topics, most of the videos are from men.
@pragun1993
@pragun1993 5 лет назад
Wrong at 6:20, Replacement means that for every bag, samples are drawn from the complete datatset regardless of what went inside previous bag. It does not mean that inside each bag you will have repeated observations.
@PratikPrajapati84
@PratikPrajapati84 5 лет назад
Is there any playlist for these lectures or we have to do boosting in random forest ?
@aditya16688
@aditya16688 5 лет назад
hhaha!!
@deepakkumarshukla
@deepakkumarshukla 4 года назад
A bit late but Complete lecture series is available at nptel.ac.in/courses/106/105/106105152/
@ashifkasala6897
@ashifkasala6897 6 лет назад
Mam u r god i passed this subject caz of u only....guruji u r great
@SaurabhGupta-id4tw
@SaurabhGupta-id4tw 6 лет назад
Liked the wy the weights in Boosting were explained
@siddharthmagadum16
@siddharthmagadum16 3 года назад
7:59 how come the probability will be as mentioned if we are considering both sample size and dataset size as n, then all the instances are chosen, so probability will be 1. right??
@augustine8142
@augustine8142 Год назад
I also have the same doubt
@sripatimukhopadhyay5504
@sripatimukhopadhyay5504 4 года назад
Thank you Madam for such a lecture on this topic. Prof Sripati, AoT
@anirudhsrivastava3530
@anirudhsrivastava3530 2 года назад
Maam where are you now, 2022 needs you
@operatingsystem4996
@operatingsystem4996 2 года назад
good explanation madam
@joowlee
@joowlee 7 лет назад
At 2:43, the learner will underfit, not overfit with the small dataset?
@joowlee
@joowlee 7 лет назад
Vivek Viswanath got it.. thanks!
@tolifeandlearning3919
@tolifeandlearning3919 2 года назад
Awesome.
@sunderrajan6172
@sunderrajan6172 7 лет назад
Why the lectures are all over the place, there is no sequence. If a title for the video is given, it would be easy to search and view what is required to view.
@joelphilip2942
@joelphilip2942 3 года назад
nptel.ac.in/courses/106/105/106105152/ you can follow this course.
@saurabhchoudhary4572
@saurabhchoudhary4572 Год назад
Ma'am please consider the feedback in the comments section, you are hampering the image of IIT
@sureshch3667
@sureshch3667 5 лет назад
mam,iam invented bagging machine i have some doubts
@debojyotisaha196
@debojyotisaha196 6 лет назад
At 8:30 the probability will be 1 - that quantity
@gregoryjester5167
@gregoryjester5167 6 лет назад
That's what confused me when I watched. The formula she was mentioning should be the probability that it is excluded rather than included in my opinion.
@AS-hm9km
@AS-hm9km 6 лет назад
@@gregoryjester5167 You're right
@jaggu_007i
@jaggu_007i 4 года назад
The probability will be 1/8
@umang9997
@umang9997 2 года назад
@@gregoryjester5167 Yes! Thank you!
@Rochanism
@Rochanism 6 лет назад
Thank you very much mam
@harshalbiradar569
@harshalbiradar569 6 лет назад
Please mam provide notes for every topic
@bosepukur
@bosepukur 5 лет назад
The formula is wrong it should be 1 - (1- 1/n) ^ n
@kedarnath4777
@kedarnath4777 4 года назад
no, this is the equation of non existence of a data point in a sample set, while she mentioned the existence equation.
@AmitSingh-jo8ob
@AmitSingh-jo8ob 4 года назад
Yes. Formula at 8 55 is wrong. That's indicating , if one sample is not getting selected in di.
@asjad4u
@asjad4u 6 лет назад
Horrible english. Could not understand some words.
@awesome_harish
@awesome_harish 5 лет назад
@​@Data Crunching , well said every 1 of 10 we meet these ppl who comment abt language than subject @ asjad4 , if meaning understood forget about grammar
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