In this paper an optimal stopping problem is considered. Only one of two sequences of random variables which are independent copies of a known continuously distributed random variable is observed. It is necessary to stop the observation at the moment in which at most k values of the unobserved sequence are greater than the observed maximum, with maximal probability. The optimal stopping rule for the finite length of the observation is obtained.
The following version of the two-player best choice problem is considered. Two players observe a sequence of i.i.d. random variables with a known continuous distribution. The random variables cannot be perfectly observed. Each time a random variable is sampled, the sampler is only informed whether it is greater than or less than some level specified by him. The aim of the players is to choose the best observation in the sequence (the maximal one). Each player can accept at most one realization of...
We consider a sequence of independent random variables with the known distribution observed sequentially. The observation n is a value of one order statistics s : n-th, where 1 ≤ s ≤ n. It the instances following the n-th observation it may remain of the s : m or it will be the value of the order statistics r : m (of m > n observations). Changing the rank of the observation, along with expanding a set of observations is a random phenomenon that is difficult to predict. From practical reasons...
W pewnym okresie Trybuła zwrócił uwagę na zagadnienia adaptacyjnego sterowania (patrz [20, 21]). Wydaje się, że zainspirowała Go monografia Aoki [1]. Do tematu wrócił po dość długim czasie. Zauważył, że w literaturze zakłada się, iż zakłócenia w systemach stochastycznych mają charakter gaussowski, podczas gdy w praktyce sygnały, a więc i zakłócenia, są dyskretne. Przypominamy tutaj typowy model analizowany w tej serii prac jako, że współczesne zastosowania modeli liniowych w ekonomii i technice...
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