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Issue No. 06 - June (1971 vol. 20)
ISSN: 0018-9340
pp: 691-694
The switching variables in a switching circuit are considered as binary random variables. The input signals are given joint probabilities, from which the output signals' probabilities are known. The joint entropy, or average information content, of subsets of variables is defined, and a proof is given that a set of these entropies are characteristic invariants of the PCN equivalence classes.
Equivalence classes, invariants, joint entropy, random variables, switching circuits.
W.S. Matheson, "PCN Equivalence Class Invariants and Information Quantities", IEEE Transactions on Computers, vol. 20, no. , pp. 691-694, June 1971, doi:10.1109/T-C.1971.223329
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