A random walk with state space equal to Z (integer numbers) can be transient or null recurrent depending on p. If p=1/2 then it is null recurrent and in other cases it is transient. Look at the book by S. Ross (Example 4.3d).

A random walk with reflectant barrier at 0 (i.e., state space equal to non negative integers) can be transient, null recurrent or positive recurrent. Look here (local copy).

La primera clase será el 1 de octubre de 2012.

Jan 27.  From 16:00. (Seminar A23)
1.- Bio-PEPA. Estíbaliz Fraca
2.- Cellular Automata. Jorge Álvarez
3.- Random Neural Networks. José Vicente Ruiz

Feb 3. From 16:00. (Seminar A23)
4.- The Systems Biology Markup Language (SBML). Xu Wang
5.- Higher order Markov chains. Fluid Neural Networks. Miguel Aguilera

1.- Cellular Automata

2.- The Systems Biology Markup Language (SBML)

3.- Bio-PEPA

4.- Random Neural Networks

5.- Density Dependent Markov Chains

6.- Higher order Markov chains

The presentations are expected to provide a gentle introduction to the topic as well as to its potential applications.

The topics will be assigned to the students as follows: a) each student has to send an email (both to Javier Campos and Jorge Júlvez) with a list of topics he’s willing to present. The list must contain 5 topics ordered according to his preference; b) the sooner a student sends the email the higher his priority to be asigned a higly preferred topic.

The presentations will take place on Jan 27 and Feb 3 at 16:00 in the usual seminar. As soon as the topics are assigned, the schedule of the presentations will be posted in this webpage.

Instead of introducing Hidden Markov Models (HMM), these two lectures we will devoted to introduce (timed and/or stochastic) Petri net models, some analysis techniques for them (December 16th) and their application for the modeling of chemical networks (January 13th).

The students interested on HMM are encouraged to read the slides and the tutorial written by L.R. Rabiner.

Al realizarse el corte fuera del horario laboral del Personal de Administración y Servicios del DIIS capacitado para realizar las operaciones de apagado y encendido de servidores, en esta ocasión (debido a compromisos previos) no es posible ajustar al máximo el tiempo de pérdida de servicio (como se ha hecho otras veces).

Por lo tanto, el calendario de actuaciones será:

• Viernes 19, a partir de las 14:30, comienza el apagado de servidores del DIIS, quedando todo apagado (incluidos los servidores web) excepto lo mínimo imprescindible para la realización de prácticas.
• Viernes 19, a partir de las 20:00, se apaga el servidor de prácticas y resto de infraestructuras de la sala de servidores; queda todo apagado durante todo el fin de semana.
• Lunes 22, a partir de las 8:00, comienza el encendido de servidores (condicionado al funcionamiento de la infraestructura de comunicaciones); se interará que a la misma hora el SICUZ verifique también los servicios de red.