In statistics, the observed information, or observed Fisher information, is the negative of the second derivative (the Hessian matrix) of the "log-likelihood" (the logarithm of the likelihood function). It is a sample-based version of the Fisher information.
Read more about Observed Information: Definition, Fisher Information, Applications, See Also
Famous quotes containing the words observed and/or information:
“A wise architect observed that you could break the laws of architectural art provided you had mastered them first. That would apply to religion as well as to art. Ignorance of the past does not guarantee freedom from its imperfections.”
—Reinhold Niebuhr (1892–1971)
“On the breasts of a barmaid in Sale
Were tattooed the prices of ale;
And on her behind
For the sake of the blind
Was the same information in Braille.”
—Anonymous.