Venn diagram of information theoretic measures for three variables , , and , represented by the lower left, lower right, and upper circles, respectively. The conditional mutual informations , and are represented by the yellow, cyan, and magenta regions, respectively.
In probability theory, particularly information theory, the conditional mutual information[1][2] is, in its most basic form, the expected value of the mutual information of two random variables given the value of a third.
^Wyner, A. D. (1978). "A definition of conditional mutual information for arbitrary ensembles". Information and Control. 38 (1): 51–59. doi:10.1016/s0019-9958(78)90026-8.
^Dobrushin, R. L. (1959). "General formulation of Shannon's main theorem in information theory". Uspekhi Mat. Nauk. 14: 3–104.
and 22 Related for: Conditional mutual information information
particularly information theory, the conditionalmutualinformation is, in its most basic form, the expected value of the mutualinformation of two random...
In probability theory and information theory, the mutualinformation (MI) of two random variables is a measure of the mutual dependence between the two...
In information theory, the conditional entropy quantifies the amount of information needed to describe the outcome of a random variable Y {\displaystyle...
generalization of quantities of information to continuous distributions), and the conditionalmutualinformation. Also, pragmatic information has been proposed as...
of the information content of random variables and a measure over sets. Namely the joint entropy, conditional entropy, and mutualinformation can be considered...
interpretation in algebraic topology. The conditionalmutualinformation can be used to inductively define the interaction information for any finite number of variables...
entropy measures such as Rényi entropy. Transfer entropy is conditionalmutualinformation, with the history of the influenced variable Y t − 1 : t − L...
expressed as special cases of a single inequality involving the conditionalmutualinformation, namely I ( A ; B | C ) ≥ 0 , {\displaystyle I(A;B|C)\geq 0...
Z {\displaystyle Z} are conditionally independent, given Y {\displaystyle Y} , which means the conditionalmutualinformation, I ( X ; Z ∣ Y ) = 0 {\displaystyle...
of the channel, as defined above, is given by the maximum of the mutualinformation between the input and output of the channel, where the maximization...
measures of information: entropy, joint entropy, conditional entropy and mutualinformation. Information diagrams are a useful pedagogical tool for teaching...
or source information rate is a function assigning an entropy to a stochastic process. For a strongly stationary process, the conditional entropy for...
i | Y i − 1 ) {\displaystyle I(X^{i};Y_{i}|Y^{i-1})} is the conditionalmutualinformation I ( X 1 , X 2 , . . . , X i ; Y i | Y 1 , Y 2 , . . . , Y i...
In probability theory, conditional probability is a measure of the probability of an event occurring, given that another event (by assumption, presumption...
(X_{k}|X_{k-1},\dots ,X_{1})} It is also used in the definition of mutualinformation: 21 I ( X ; Y ) = H ( X ) + H ( Y ) − H ( X , Y ) {\displaystyle...
The differential analogies of entropy, joint entropy, conditional entropy, and mutualinformation are defined as follows: h ( X ) = − ∫ X f ( x ) log ...
( A : B | Λ ) {\displaystyle S(A:B|\Lambda )} , the quantum ConditionalMutualInformation (CMI), below. A more general version of Eq.(1) replaces the...
package for computing all information distances and volumes, multivariate mutualinformation, conditionalmutualinformation, joint entropies, total correlations...
closely related to mutualinformation; indeed, it is a simple linear expression involving the mutualinformation. Unlike the mutualinformation, however, the...
In information theory, the limiting density of discrete points is an adjustment to the formula of Claude Shannon for differential entropy. It was formulated...
classical intuition, except that quantum conditional entropies can be negative, and quantum mutualinformations can exceed the classical bound of the marginal...