Поредната сбирка на Националния семинар по стохастика ще се проведе на 4 юни 2024 г. (сряда) от 14:00 часа в зала 503 на ИМИ - БАН. Доклад на тема Comparison of parameter estimation methods for a Beta-Uniform mixture model ще изнесе Николай И. Николов (ИМИ-БАН). Абстракт. The Benjamini-Hochberg (B-H) method is a procedure for controlling the false discovery rate in the problem of multiple comparisons and is one of the most cited scientific works. In this talk, a Beta-Uniform mixture is considered for approximating the distribution of the p-values before the B-H adjustment. Expectation-maximization algorithms are derived for finding the maximum-likelihood and the maximum product of spacings estimations of the parameters in the suggested model. In addition, the method of moments is also applied for [...]

Поредната сбирка на Националния семинар по стохастика ще се проведе на 3 юли 2024 г. (сряда) от 14:00 часа в зала 503 на ИМИ - БАН. Доклад на тема Control Problems for Queuing Systems with Moving Servers ще изнесе Asaf Hajiyev (Azerbaijan National Academy of Sciences, Institute of Control systems). Абстракт. For queuing systems with moving servers, the control policy which means delays of a beginning service is introduced. In the capacity of efficiency index of systems is taken a customer’s average waiting time before service. Although it seems that it is a paradoxical idea to delay the beginning of service, it has been proved that for some systems it gives a gain in a customer’s average waiting time before service. The class of [...]

Поредната сбирка на Националния семинар по стохастика ще се проведе на 4 ноември 2025 г. (вторник) от 14:00 часа в зала 503 на ИМИ - БАН. Доклад на тема Оптимално предсказване на екстремални събития ще изнесе Стилян Стоев (University of Michigan). Абстракт