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:
“You have observed a skilful man reading Virgil. Well, that author is a thousand books to a thousand persons. Take the book into your two hands, and read your eyes out; you will never find what I find.”
—Ralph Waldo Emerson (1803–1882)
“So while it is true that children are exposed to more information and a greater variety of experiences than were children of the past, it does not follow that they automatically become more sophisticated. We always know much more than we understand, and with the torrent of information to which young people are exposed, the gap between knowing and understanding, between experience and learning, has become even greater than it was in the past.”
—David Elkind (20th century)