User Mark L. Stone - Cross Validated

Mark L. Stone

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Nonlinear Multivariate Dynamic Stochastic Global Optimum

266 Answers

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6 votes

Is it fair to say that most real-life distributions have finite variance?

answered Jul 5, 2015 at 14:40

12 votes

Free statistical textbooks

answered May 30, 2016 at 1:56

3 votes

Covariance of an estimate from optimization

answered May 25, 2019 at 0:17

15 votes

Accepted

Does there exist any univariate distribution that we can't sample from?

answered Aug 25, 2016 at 23:31

3 votes

Prove that the distribution of $Q$ is chi-squared with $p_2$ degrees of freedom

answered Jun 14, 2015 at 12:33

3 votes

Accepted

Is there an algorithm for solving a many-to-one assignment problem?

answered Aug 30, 2016 at 12:22

5 votes

Completing a $3 \times 3$ correlation matrix — $2$ coefficients of the $3$ given

answered Jan 4, 2017 at 4:08

3 votes

What is the hazard-rate of a truncated probability distribution?

answered Dec 13, 2021 at 16:47

6 votes

log-linear vs log-bilinear

answered Oct 18, 2015 at 12:24

2 votes

Accepted

Sample covariance matrix and its inverse

answered Jun 19, 2015 at 15:53

1 vote

About solving a convex optimization problem

answered Jun 26, 2017 at 11:12

50 votes

Accepted

How does the L-BFGS work?

answered Jun 13, 2017 at 12:03

0 votes

If $X$ is normally distributed, can $\log(X)$ also be normally distributed?

answered Jul 14, 2018 at 2:18

26 votes

Why is logistic regression called a machine learning algorithm?

answered Jun 25, 2015 at 18:06

3 votes

How to recover primal problem from its dual counterpart

answered Apr 6, 2019 at 16:47

9 votes

How to cross validate stepwise logistic regression?

answered Jul 24, 2015 at 0:01

3 votes

Quadratic problems with norm constraints in R

answered Apr 6, 2019 at 17:11

4 votes

Accepted

Why correlation is not "transitive"?

answered Jan 16, 2017 at 21:27

2 votes

Accepted

Why weights are not negative in Lasso regression?

answered Jul 14, 2018 at 10:46

1 vote

Accepted

Why may a matrix be singular or ill-conditioned with standard learning algorithm for linear classification?

answered Jul 3, 2018 at 17:03

8 votes

Accepted

Computing Highest Density Region given multivariate normal distribution with dimension $d$ > 3

answered Jul 2, 2018 at 11:58

7 votes

Accepted

Why is gradient descent with momentum considered an exponentially weighted average?

answered Jun 29, 2018 at 23:28

3 votes

Is it possible to calculate the probability the sum of one set of random variables equals the sum of a different set of random variables?

answered Jun 19, 2018 at 19:32

2 votes

The lack of correlation determines the second-degree cross-moments (covariances) of a multivariate distribution?

answered Jun 15, 2018 at 11:50

1 vote

Estimation of parameters from two simultaneous equations

answered Jun 10, 2018 at 18:49

1 vote

Hessian of Log of Matrix-t distribution

answered Jun 10, 2018 at 15:01

2 votes

Accepted

formula for sample covariance: Bessel's correction

answered Jun 10, 2018 at 12:16

9 votes

Accepted

Any optimization problem can be expressed as one with a linear objective

answered Jun 9, 2018 at 12:08

7 votes

Accepted

Working out error on fit parameters for nonlinear fit

answered Jun 8, 2018 at 14:16

5 votes

What is the use of the log of the sum of exponents in machine learning

answered May 25, 2018 at 16:05

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