covariance matrix वाक्य

उदाहरण वाक्य

1. The covariance matrix adaptation ( CMA ) is a method to update the covariance matrix of this distribution.
2. The update equations for mean and covariance matrix maximize a likelihood while resembling an expectation-maximization algorithm.
3. In a mean-variance optimization framework, accurate estimation of the variance-covariance matrix is paramount.
4. In a practical application in portfolio optimization, accurate estimation of the variance-covariance matrix is paramount.
5. Similarly, random vectors whose covariance matrix is zero in every entry outside the main diagonal are called uncorrelated.
6. In an MPT or mean-variance optimization framework, accurate estimation of the variance covariance matrix is paramount.
7. What if the covariance matrix is not known a-priori and needs to be estimated from the data?
8. For example, in the case of a Gaussian distribution, this comprises the mean and the covariance matrix.
9. If X is a positive semi-definite square matrix, commonly referred to as the variance-covariance matrix.
10. Assuming the missing data are missing at random this results in an estimate for the covariance matrix which is unbiased.