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Neighborhood of a point, Embedding(t-SNE): Dimensionality reduction Lecture 22@ Applied AI Course 

Applied AI Course
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18 сен 2024

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Комментарии : 15   
@Humzalikhan
@Humzalikhan 4 года назад
Wow, really good explanation. Thanks!
@rajeswarithenkarai9742
@rajeswarithenkarai9742 10 месяцев назад
Tq for upolading this vedio
@Gauravkr0071
@Gauravkr0071 4 года назад
how we can decide ? how much far is far ? how to decide the thershold
@sau002
@sau002 5 лет назад
Excellent video. When applying tSNE to MNIST, are calculations of neighborhood get affect by the curse of dimensionality ? Considering that MNIST is a 28*28= 784 dimensional vector
@andresmejiazacarias6536
@andresmejiazacarias6536 4 года назад
Do you know why is it named stochastic?
@AmitTiwari-wf1xj
@AmitTiwari-wf1xj 3 года назад
How to measure/decide how far is far and is there is any formula to decide the threshold to decide this is far but this is close?
@SKAMRANPASHA
@SKAMRANPASHA 4 года назад
@Applied AI Course , If we take a point from high dimensional and place it in low dimensional ,. How're we choosing our replaced points coz otherwise we'll have same number of points in low dimensional as well ,. If we replace all high dimensional points in low dimension
@AppliedAICourse
@AppliedAICourse 4 года назад
Our objective here is not to reduce the number of points, but to reduce the dimensionality of each point so that we can visualise the lower dimensional data.
@avitejsinghchadha679
@avitejsinghchadha679 4 года назад
Is this method similar to k means
@AppliedAICourse
@AppliedAICourse 4 года назад
No. KMeans tries to cluster similar points while TSNE is trying to embed points to a lower dimensional while preserving their neighbourhoods.
@Jkauppa
@Jkauppa 2 года назад
do you understand what you are reading, do you have anything use of anything you say
@Jkauppa
@Jkauppa 2 года назад
if you handle your data as independent distributions, you can determine with confidence intervals those distributions and the total probability distributions, which histogram estimates in very high dimensions
@Jkauppa
@Jkauppa 2 года назад
if you dont have a grasp of the top down view, then you make some random non-meaningful decisions in the algorithms
@Jkauppa
@Jkauppa 2 года назад
I dont hate you, just pushing you into a more coherent direction
@Jkauppa
@Jkauppa 2 года назад
so you would see the forest (the purpose, the top view) from the trees (random stupid algorithms)
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