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  2. Athanasios Papoulis - Wikipedia

    en.wikipedia.org/wiki/Athanasios_Papoulis

    Papoulis contributed in the areas of signal processing, communications, and signal and system theory.His classic book Probability, Random Variables, and Stochastic Processes [4] is used as a textbook in many graduate-level probability courses in electrical engineering departments all over the world.

  3. Probabilistic numerics - Wikipedia

    en.wikipedia.org/wiki/Probabilistic_numerics

    Bayesian optimization of a function (black) with Gaussian processes (purple). Three acquisition functions (blue) are shown at the bottom. [19]Probabilistic numerics have also been studied for mathematical optimization, which consist of finding the minimum or maximum of some objective function given (possibly noisy or indirect) evaluations of that function at a set of points.

  4. Algebra of random variables - Wikipedia

    en.wikipedia.org/wiki/Algebra_of_random_variables

    Therefore, the behavior of the different operators of the probability distribution, such as expected values, variances, covariances, and moments, may be different from that observed for the random variable using symbolic algebra. It is possible to identify some key rules for each of those operators, resulting in different types of algebra for ...

  5. 100 prisoners problem - Wikipedia

    en.wikipedia.org/wiki/100_prisoners_problem

    In the initial problem, the 100 prisoners are successful if the longest cycle of the permutation has a length of at most 50. Their survival probability is therefore equal to the probability that a random permutation of the numbers 1 to 100 contains no cycle of length greater than 50. This probability is determined in the following.

  6. Law of the unconscious statistician - Wikipedia

    en.wikipedia.org/wiki/Law_of_the_unconscious...

    If g is a general function, then the probability that g(X) is valued in a set of real numbers K equals the probability that X is valued in g −1 (K), which is given by (). Under various conditions on g , the change-of-variables formula for integration can be applied to relate this to an integral over K , and hence to identify the density of g ...

  7. Optimum "L" filter - Wikipedia

    en.wikipedia.org/wiki/Optimum_"L"_filter

    The Optimum "L" filter (also known as a Legendre–Papoulis filter) was proposed by Athanasios Papoulis in 1958. It has the maximum roll off rate for a given filter order while maintaining a monotonic frequency response .

  8. Papoulis-Marks-Cheung Approach - Wikipedia

    en.wikipedia.org/wiki/Papoulis-Marks-Cheung_Approach

    The Papoulis-Marks-Cheung approach [1] is a theorem in multidimensional Shannon sampling theory that shows that the sampling density of a two-dimensional bandlimited function can be reduced to the support of the Fourier transform of the function.

  9. Resolution (algebra) - Wikipedia

    en.wikipedia.org/wiki/Resolution_(algebra)

    In mathematics, and more specifically in homological algebra, a resolution (or left resolution; dually a coresolution or right resolution [1]) is an exact sequence of modules (or, more generally, of objects of an abelian category) that is used to define invariants characterizing the structure of a specific module or object of this category.

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