Abstract
Maximum entropy methods seek to estimate an unknown density function, typically nonnegative, on the basis of some known moments — integrals of the function with respect to given weights. The estimate is chosen to minimize some measure of entropy, a convex integral functional of the density, subject to the given moment constraints. A desirable feature of such a method is that the estimates should converge to the unknown density as the number of known moments grows. We survey recent results demonstrating how various types of convergence (weak-star, weak and norm in L 1 and L p , measure, and uniform) result from various properties of the entropy (strict convexity, smoothness, and growth conditions). This investigation may be seen as an extension of the classical study of the convergence of Fourier series to the framework of maximum entropy problems. Rather than present the most general theorems known, the unified pattern of the results is illustrated on a single fairly general model problem. References are given for the more general results and their proofs.
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Borwein, J.M., Lewis, A.S. (1993). A Survey of Convergence Results for Maximum Entropy Methods. In: Mohammad-Djafari, A., Demoment, G. (eds) Maximum Entropy and Bayesian Methods. Fundamental Theories of Physics, vol 53. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-2217-9_5
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