Kernel Density Estimation : Data Science Concepts

  Рет қаралды 17,351

ritvikmath

ritvikmath

Күн бұрын

All about Kernel Density Estimation (KDE) in data science.
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0:00 Why do KDE?
2:30 Good vs. Bad KDE
5:35 Intuition and Math
15:09 Bandwidth Selection Theory
19:45 Bandwidth Selection in Practice

Пікірлер: 43
@kolepugh9186
@kolepugh9186 5 ай бұрын
As a senior data science student, I want to enter the job market with as much knowledge as possible. Easy-to-follow videos like this make that goal so much easier. Thank you!
@ritvikmath
@ritvikmath 5 ай бұрын
Great to hear!
@mustafizurrahman5699
@mustafizurrahman5699 4 ай бұрын
Enthralling video on this topic. I cannot thank you more for the lucid explanation on this interacted topic.
@pipertripp
@pipertripp 5 ай бұрын
Sublime. This topic just came up in a data analytics course I'm taking (it wasn't a central theme of the lesson, but I hate not knowing the details sometimes) and this programme is a perfect complement to that. Like others have said, your style is intuitive but not over simplified. In general, I feel like you're striking a great balance between ease of understanding and mathematical rigour.
@shu5011
@shu5011 5 ай бұрын
Love the content. Easy to follow and understand. You are one of the best teachers in the data science field!
@Frijjazzo
@Frijjazzo 4 ай бұрын
Amazing video, so clear and concise. I learn better with visual and conceptual ideas first before diving into the maths. Thank you!
@ritvikmath
@ritvikmath 4 ай бұрын
Glad it was helpful!
@BlackGemuese
@BlackGemuese 4 ай бұрын
best explanation on KDE I have seen
@ritvikmath
@ritvikmath 4 ай бұрын
Thanks!
@hasnaabennis1248
@hasnaabennis1248 5 ай бұрын
Amazing video! Clearly explained with an easy to understand example. Thank you
@ritvikmath
@ritvikmath 5 ай бұрын
thanks!
@perkyfever
@perkyfever 5 ай бұрын
Quality content here. Also examples are nice and clear!
@dr_greg_mouse4125
@dr_greg_mouse4125 2 ай бұрын
Really nice explanation. Thanks a lot.
@franciscofurey4878
@franciscofurey4878 4 ай бұрын
Love it, amazing work in this video, congratS!
@ritvikmath
@ritvikmath 4 ай бұрын
Thanks a lot!
@iffatara8846
@iffatara8846 Ай бұрын
the only video i undestood without mathematical jargon.
@HemanthKumar-vl9oh
@HemanthKumar-vl9oh 5 ай бұрын
Very good and intuitive explanation
@ritvikmath
@ritvikmath 5 ай бұрын
Thanks!
@petegranneman1623
@petegranneman1623 Ай бұрын
Great explanation! Gaussian KDE is great for bimodal and skewed distributions. One downside with gaussian KDE is difficulty accurately modeling distributions with high excess kurtosis.
@luciapalacios7819
@luciapalacios7819 5 ай бұрын
Amazing video thanks!!!!
@andrashorvath2411
@andrashorvath2411 3 ай бұрын
Very clear flow of explanation, thank you. I'm thinking that it would be useful to design a hypothesis test for the chosen setup to back up the idea of the final density and so to get an extra information along with the vertical position of the chosen point as of how much proof we have for the final result that is allowed by the number and positions of the known fixed points. More research would be nice.
@Baharehhashemi-df4cv
@Baharehhashemi-df4cv 2 ай бұрын
thank you
@faustovrz
@faustovrz 5 ай бұрын
Clear explanation and easy to follow, thank you! Silly observation: "Integrate over all possible weights of fish. All the way from negative infinity to positive infinity": I'm no ichthyologist or fisherman but I feel negative weight fish ain't an option.
@pranavchandrav6071
@pranavchandrav6071 Ай бұрын
Negative infinity to positive infinity just means that you've to integrate the PDF over its domain :)
@niklasbjorkenheim1479
@niklasbjorkenheim1479 4 ай бұрын
Thank you, Great Video:)
@niklasbjorkenheim1479
@niklasbjorkenheim1479 4 ай бұрын
No Problem !
@ritvikmath
@ritvikmath 4 ай бұрын
Glad you liked it!
@winstongraves8321
@winstongraves8321 5 ай бұрын
Great video
@ritvikmath
@ritvikmath 5 ай бұрын
Thanks!
@nilkantgudpale1959
@nilkantgudpale1959 4 ай бұрын
loved the way teach
@ritvikmath
@ritvikmath 4 ай бұрын
Thanks!
@eramy1
@eramy1 4 ай бұрын
Thanks for the good explanation about KDE method. could you please make a video about prediction intervals PI that sometimes uses the KDE method? thanks!
@vallaugeri3152
@vallaugeri3152 28 күн бұрын
So helpful, better than my professor lol
@ritvikmath
@ritvikmath 28 күн бұрын
Thanks!
@_noirja
@_noirja 5 ай бұрын
very very good one pound fish
@mario1ua
@mario1ua 5 ай бұрын
Come on ladies, come on ladies
@ovren4897
@ovren4897 2 ай бұрын
great video but i am confused about why we didn't use just 1/n*(sigma(...)) for MISE formula but integral and expected value.
@deltamico
@deltamico Ай бұрын
You integrate cause you're working with continuous functions. It is already normalized since the squared difference could be at most 1. We also want a good estimsted distribution to perform well on other samples from the true distribution. That's why we take the expected error on various samples
@alihussien7935
@alihussien7935 5 ай бұрын
Wow you are great can you make full Videos about ml using book An Introduction to Statistical Learning - with Applications in R?
@ritvikmath
@ritvikmath 5 ай бұрын
Thanks! I’ll look into it
@alihussien7935
@alihussien7935 5 ай бұрын
@@ritvikmath please doit you explain things Easy and simple, given the must information of things so it's very Easy for us to remember
@TheTwerkMerc
@TheTwerkMerc 4 ай бұрын
Question, when conducting MC and sampling, can you use a KDE as a valid PDF as opposed to assuming a distribution (e.g normal, log normal, etc.)? Also, could this be considered kind of like a 1-d k means?
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