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Apr
7
asked How to solve the least square with $L_2$ norm constraint directly?
Apr
6
answered Why are additional constraint and penalty term equivalent in ridge regression?
Jan
25
asked Equivalence of the partial least square regresssion's iterative algorithm and its optimization problem
Nov
15
answered When will $AB=BA$?
Apr
19
asked Givens rotation and retraction mapping
Mar
24
asked Generic points as coefficients of polynomial kernels?
Jan
23
asked Correspondence between an order of rational function field and a Dedekind cut
Jan
15
answered Mnemonic for cross product
Jun
17
answered Suppose that a $3\times 3$ matrix $M$ has an eigenspace of dimension $3$. Prove that $M$ is a diagonal matrix.
Apr
17
asked About the spectral radius of a kind of matrices
Apr
17
asked Prove or disprove: the spectral radius of a matrix with negative entries and row sums as 1 is larger than 1
Apr
16
asked Textbooks on modern optimization (on machine learning) with exercises
Feb
1
asked The positive-definite-ness of RBF kernel
Oct
21
asked Questions about algebraic manifold on matrices
Sep
26
answered Solve $3\sqrt{x+4}-2\sqrt{x-11}+5\sqrt{x-8}=0$
Jun
12
asked Compound Poisson process with exponential distribution
Apr
23
answered Need help solving Recursive series defined by $x_1 = \sin x_0$ and $x_{n+1} = \sin x_n$
Apr
14
asked Similarity between $I+N$ and $e^N$ when $N$ is nilpotent
Oct
17
asked How many $n$'s can make $4m^2-n^2$ a perfect square? And, triple of a perfect square?
Sep
25
asked Solution to a system of linear equations in GF(2)