@Saad-mh8rb

i am a prodigy machine learner with python and scikit learn and 16 year old boy
i learned more in this video about dimension reduction than i could possibly learn in hours
i am now on way to reduce dimensions of my data and improve the accuracy 
thanks siraj sir
i really appreciate that u r posting educational content free of cost
allah bless you

@winviki123

This is easier to understand if you're already familiar with PCA.
This video is a summary of what i've learnt in dimensionality reduction,Thanks Siraj.

@concernedcitizen734

I am pausing this just to laugh at all the pictures and side stuff.    This is so informative and fun.  What a refreshing surprise as I am trying to research this.

@newtonisaacma

Right on time Siraj ! Just learning PCA and dimensional reduction and here you are explaining it clearly . Thanks

@tex1297

Thank you Siraj. I am an engineer from an other field. Your work helping me a lot to widen my perspective.

@777Jeetesh

Siraj,Maaaaahn I am working on my FYP on recommender systems and I was using SVD for reducing dimensions.Thanks for exposing me to PCA and the fact that how this field is breakthroufh worthy...keep up the work..#Respect

@qhkmdev

Oh my, why did i discover your channel only now?! What an amazing content and approach to teaching! Love it! Keep up the good work.

@scyfris

As someone who has worked with high-dimensional data classification, I can say that PCA is a truly powerful technique, and not at all that complicated.

Another interesting technique for dimensionality reduction is "random projection", which has the cool property of closely retaining distance relationships between high-dimensional data points in the lower dimensional space (https://en.wikipedia.org/wiki/Random_projection)

@Zzznmop

2 videos in 1 week. Thank you!!!

@lalalanding234

that rap too good!! i subbed <3
thank you for the interesting  video

@cominup85

enjoy your videos. Nice to see a wee regional link to the UK with your data. Hope you keep posting.

@dec2

keep the flavor and flourishes. it's probably why i'm subscribed. there's reading material and other sources for the dry stuff.

@scyfris

The use of memes is strong with this one.

@poojawalavalkar355

This by far the simplest and THE BEST explanation of PCA on the internet!!! Thanks Siraj!! :)

@vinayaknigam

Thanks Siraj........PCA just got demystified for me !!!!!! grt video

@ivangutierrez4135

One more amazing video from Siraj. I love this content !!!

@rougegorge3192

Stay the same Siraj, very inspirating creation and creator

@rickmonarch4552

6:01 is from Eugene. :D credit her too. Great explaination though. thx

@dannychan5242

Awesome video, keep up the great work Siraj!

@sharmadronamraju8224

Great videos! keep them coming...