Proportional-fair rule - meaning and definition. What is Proportional-fair rule
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What (who) is Proportional-fair rule - definition


Proportional-fair rule         
In operations research and social choice, the proportional-fair (PF) rule is a rule saying that, among all possible alternatives, one should pick an alternative that cannot be improved, where "improvement" is measured by the sum of relative improvements possible for each individual agent. It aims to provide a compromise between the utilitarian rule - which emphasizes overall system efficiency, and the egalitarian rule - which emphasizes individual fairness.
Proportional division         
FAIR DIVISION THEORY PROPERTY
Proportional (fair division)
A proportional division is a kind of fair division in which a resource is divided among n partners with subjective valuations, giving each partner at least 1/n of the resource by his/her own subjective valuation.
Zaitsev's rule         
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  • Alexander Mikhaylovich Zaitsev
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EMPIRICAL RULE PREDICTING THE MAJOR PRODUCT(S) IN ELIMINATION REACTION
Saytzeff's rule; Zaitsev's Rule; Zaitsev's product; Saytzeff rule; Saytzeff's Rule; Saytzev's rule; Zaytsev product; Saytzeff Rule; Zaitsev rule; Saytsev's rule; Saytsev rule
In organic chemistry, Zaitsev's rule (or Saytzeff's rule, Saytzev's rule) is an empirical rule for predicting the favored alkene product(s) in elimination reactions. While at the University of Kazan, Russian chemist Alexander Zaitsev studied a variety of different elimination reactions and observed a general trend in the resulting alkenes.