Dialog Systems based on Markov decision processes over two real tasks

In this work the state of the art of the automatic dialogue strategy management using Markov decision processes (MDP) with reinforcement learning (RL) is described. Partially observable Markov decision processes (POMDP) are also described. To test the validity of these methods, two spoken dialogue systems have been developed. The first one is a spoken dialogue system for weather forecast providing, and the second one is a more complex system for train information. With the first system, comparisons between a rule-based system and an automatically trained system have been done, using a real corpus to train the automatic strategy. In the second system, the scalability of these methods when used in larger systems has been tested.

Itinerarios, del espacio al plano. Descubriendo el camino de la escuela al metro.

Resumen: Este Trabajo de Fin de Grado tiene como objeto de estudio los recorridos en el espacio a través de su representación en el plano. Presentamos una propuesta educativa basada en los principios de la enseñanza matemática realista. Utilizando como contexto los recorridos en el entorno de la escuela, matematizamos un contexto en el que los niños y niñas viven y experimentan, diseñando tareas y actividades que nos permitieron relacionar los procesos matemáticos con los contenidos curriculares de esta etapa. La implementación en el centro en el que realizábamos las prácticas nos permitió analizar los resultados obtenidos que presentamos en las conclusiones.

On some new mathematical models for infective diseases: analysis, equilibrium, positivity and vaccination controls

196 p.

Visibility recovery on images acquired in attenuating media. Application to underwater, fog, and mammographic imaging

136 p.

Bessel functions and equations of mathematical physics

The aim of this dissertation is to introduce Bessel functions to the reader, as well as studying some of their properties. Moreover, the final goal of this document is to present the most well- known applications of Bessel functions in physics.