::“reduction (or resolution) in (of) uncertainty”::
Prediction capability. A unit of prediction (in the context of “What is important” and “What is”
::“a measure of our ignorance”:
Claude Shannon
::“the difference that makes a difference.”::
Gregory Bateson
::the logarithm of the inverse of the probability of an event::: I = log (1/Pe)
Vlatko Vedra
If something is completely predictable there is zero information
a measure of unpredictability
Wikipedia
a measure of missing information
the average amount of “surprise” associated with set of events