Mismatched guesswork is characterized via tilted/exponential families yielding an LDP; one-to-one source coding mismatch cost is ≤ D(μ||ν) and vanishes iff ν lies in μ's tilted family, unlike prefix-free codes.
A characterization of guesswork on swiftly tilting curves,
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Mismatched Guesswork
Mismatched guesswork is characterized via tilted/exponential families yielding an LDP; one-to-one source coding mismatch cost is ≤ D(μ||ν) and vanishes iff ν lies in μ's tilted family, unlike prefix-free codes.