[Probabilidad-Estadistica-Seminario] Seminario de Probabilidad y Estadística - Andrés Ferragut (Universidad ORT)

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Seminario de Probabilidad y Estadística
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Título: "The last, the least and the urgent...a story of three policies."

Expositor: Andrés Ferragut (Universidad ORT)

Resumen:
 
In several queueing systems, arriving tasks or customers have service   and
timing requirements. These systems with customer abandonment have a   long and
rich history in queueing theory, and have several applications   in task
scheduling in computer systems, operations research problems,   etc. A common
point in all of these works is that they deal with   customers reneging from the
system only while in the queue, and not   during service. However, in several
applications, customers may also   leave during service, and the partial work
performed by the system   during their stay is still useful.    We will
therefore model this new type of partial service queues with   abandonment
through a point process state representation. Building upon   the machinery of
measure-valued processes that has been the backbone of   this line of research,
we will show a common framework in which to   include several policies.
Finally, we will show that the deadline-oblivious policy (preemptive)   LCFS
achieves exactly the same performance as Earliest-Deadline-First in   the fluid
scale. This is a striking property, that makes this scenario   interesting, and
overcomes the difficulty of estimating deadlines   entirely.

Joint work with Diego Goldsztajn and Fernando Paganini.


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Viernes 29/8 a las 10:30, FING: salón híbrido 502-Azul (5to. piso)

Contacto: Alejandro Cholaquidis - acholaquidis en hotmail.com
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