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amoeba
  • Member for 11 years, 4 months
  • Last seen this week
  • St. Petersburg ⇨ Freiburg ⇨ London ⇨ Lisboa ⇨ Tübingen
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About

Born but to die, and reas'ning but to err.

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Top posts
View all questions and answers
answer
1966
Making sense of principal component analysis, eigenvectors & eigenvalues
Mar 6, 2015
answer
769
Relationship between SVD and PCA. How to use SVD to perform PCA?
Jan 20, 2015
question
630
Relationship between SVD and PCA. How to use SVD to perform PCA?
Jan 20, 2015
answer
242
How to reverse PCA and reconstruct original variables from several principal components?
Aug 9, 2016
answer
236
What is the difference between a neural network and a deep neural network, and why do the deep ones work better?
Dec 3, 2015
question
175
How to reverse PCA and reconstruct original variables from several principal components?
Aug 9, 2016
answer
147
At each step of a limiting infinite process, put 10 balls in an urn and remove one at random. How many balls are left?
Nov 25, 2017
answer
142
What is the relation between k-means clustering and PCA?
Dec 16, 2015
answer
118
Is there any good reason to use PCA instead of EFA? Also, can PCA be a substitute for factor analysis?
Nov 7, 2014
answer
114
What is the difference between ZCA whitening and PCA whitening?
Oct 1, 2014
Top Meta posts
50
116
34
Are we seeing a dramatic drop in answers per question?
28
Let us merge [mixed], [mixed-effect] and [mixed-model] tags
24
$\LaTeX$ macros for expectation, variance and covariance?
23
2017 Moderator Election Q&A - Questionnaire
20
Why do some not-particularly-deep questions get SO popular, and is it a problem?
Top network posts
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27
Is any unconscious person capable of full splits?
12
Do spinal cord reflexes (such as the knee-jerk reflex) continue to function under general anaesthesia?
8
Do spinal cord reflexes (such as the knee-jerk reflex) continue to function under general anaesthesia?
7
Does a plane curve with polar equation $r=\lambda_1\cos^2\theta+\lambda_2\sin^2\theta$ have a name?
6
Trace of symmetric positive semidefinite matrix when diagonalized (as a bilinear form) in a non-orthogonal basis