WebJan 2, 2024 · An Introductory Guide to Fano's Inequality with Applications in Statistical Estimation. Jonathan Scarlett, Volkan Cevher. Information theory plays an indispensable … Web1 Fano’s inequality We first prove an important inequality that lets us understand how well can some “ground truth” random variable X be predicted based on some observed …
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WebAug 11, 2024 · 1. In Fano's inequality, the denominator is formally log ( s u p p ( X) − 1), where s u p p ( X) is the support of X, i.e. { x ∈ X: P X ( x) > 0 }. This automatically handles the case where dummy labels with no mass are chucked into X. In fact even more is true if you're willing to make the bounds depend on the estimation process. WebFano’s inequality yields upper and lower bounds on Pe in terms of H(X Y). This is illustrated in last page, where we plot the region for the pairs (Pe,H(X Y)) that are permissible under Fano’s inequality. In the figure, the boundary of the permissible (dashed) region is given by the function napoleonic british line infantry uniform
Fano
WebJan 9, 2024 · Fano's inequality is one of the most elementary, ubiquitous, and important tools in information theory. Using majorization theory, Fano's inequality is generalized to a broad class of information measures, which contains those of Shannon and Rényi. When specialized to these measures, it recovers and generalizes the classical inequalities. … WebOct 21, 2011 · The inequality that became known as the Fano inequality pertains to a model of communications system in which a message selected from a set of possible … In information theory, Fano's inequality (also known as the Fano converse and the Fano lemma) relates the average information lost in a noisy channel to the probability of the categorization error. It was derived by Robert Fano in the early 1950s while teaching a Ph.D. seminar in information theory at MIT, and later … See more Define an indicator random variable $${\displaystyle E}$$, that indicates the event that our estimate $${\displaystyle {\tilde {X}}=f(Y)}$$ is in error, Consider See more The following generalization is due to Ibragimov and Khasminskii (1979), Assouad and Birge (1983). Let F be a class of densities with a subclass of r + 1 … See more melasma natural treatment options