What does surprisal mean?
A measure of the amount of surprise in a random variable, calculated as the expected value of the logarithm of the odds of an event occurring. It is a measure of the information gained when the outcome of an event is known.
Example
"The surprisal of a coin flip is higher when the coin is fair than when it is biased."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.