i
information content
Logarithmic quantity derived from the probability of a particular event
EntityQ735075
Also known as surprisal · self-information
- Subclass of
Overview
All data
22 statements · 27% with external sources · numbers in brackets are citations
- Defining formula
\begin{align} I(x) & = \operatorname{lb}{\frac{1}{p(x)}} \, \mathrm{Sh} \\ & = \lg{\frac{1}{p(x)}} \, \mathrm{Hart} \\ & = \ln{\frac{1}{p(x)}} \, \mathrm{nat} \end{align}
- In defining formula
I(x)symbol represents: information contentpsymbol represents: probability\operatorname{lb}symbol represents: binary logarithm\lgsymbol represents: common logarithm\lnsymbol represents: natural logarithm\mathrm{Sh}symbol represents: shannon\mathrm{Hart}symbol represents: hartley\mathrm{nat}symbol represents: nat
On other databases
6 identifiers linking information content across the web's reference databases