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  • 35 votes cast
Dec
22
accepted Why the largest singular value of a megic matrix is its magic constant?
Dec
20
asked Why the largest singular value of a megic matrix is its magic constant?
Jul
2
awarded  Curious
Dec
12
awarded  Popular Question
Dec
9
comment Estimate loss of information due to a low rank approximization by SVD
I would say entropy. But any hint will be appreciated.
Dec
9
asked Estimate loss of information due to a low rank approximization by SVD
Oct
21
asked Selection of Dirichlet parameters
Oct
11
accepted Function of two integers that has not repeated values
Oct
11
comment Function of two integers that has not repeated values
Just a performance issue. An equation would be faster.
Oct
11
asked Function of two integers that has not repeated values
Jun
5
comment Operations between temporal discrete intervals
Thank you vadim. If I got your point, you suggest to consider $E_1$ as a subset of $T$, therefor if I need to interset it with $E_2$, that is the usual sets intersection. That is for sure the best and simplest solution, but someonewant me to formalize the problem as if the domain is the set of couples $TT = \{<x,y> : x,y \in T \}$.
Jun
5
revised Operations between temporal discrete intervals
added 141 characters in body
Jun
4
asked Operations between temporal discrete intervals
May
14
awarded  Caucus
May
13
accepted Prove this property of the SVD
May
13
revised Prove this property of the SVD
added 276 characters in body
May
13
comment Prove this property of the SVD
Hi, I think that what you say is not correct; infact $VV^T = I$ by definition, but $V_k V_k^T$ isn't!
May
13
asked Prove this property of the SVD
Jan
20
accepted How a rows permutation affects the SVD of a matrix?
Jan
20
asked How a rows permutation affects the SVD of a matrix?