Computational approaches to emotional decision making

Findings on the role that emotion plays in human behavior have transformed Artificial Intelligence computations. Modern research explores how to simulate more intelligent and flexible systems. Several studies focus on the role that emotion has in order to establish values for alternative decision and decision outcomes. For instance, Busemeyer et al. (2007) argued that emotional state affects the subjectivity value of alternative choice. However, emotional concepts in these theories are generally not defined formally and it is difficult to describe in systematic detail how processes work. In this sense, structures and processes cannot be explicitly implemented. Some attempts have been incorporated into larger computational systems that try to model how emotion affects human mental processes and behavior (Becker-Asano & Wachsmuth, 2008; Marinier, Laird & Lewis, 2009; Marsella & Gratch, 2009; Parkinson, 2009; Sander, Grandjean & Scherer, 2005). As we will see, some tutoring systems have explored this potential to inform user models. Likewise, dialogue systems, mixed-initiative planning systems, or systems that learn from observation could also benefit from such an approach (Dickinson, Brew & Meurers, 2013; Jurafsky & Martin, 2009). That is, considering emotion as interaction can be relevant in order to explain the dynamic role it plays in action and cognition (see Boehner et al., 2007).

PLAGUE. Un editor visual para PDDL

Plague es un editor de archivos escritos en lenguajes de planificación como STRIPS y PDDL, que permite lanzar el algoritmo GrahPlan a partir de los archivos de dominio y problema editados y encontrar una solución al problema planteado. El objetivo del editor es eminentemente pedagógico: su uso es muy simple y viene con variados ejemplos de ambos lenguajes de planificación, de modo que el usuario pueda aprenderlos de forma paulatina. Además, la salida de la ejecución permite ir viendo paso a paso el desarrollo del algoritmo GraphPlan: los operadores que se van ejecutando, los no-ops que se han seguido, los mutex que se han aplicado en cada nivel y el tiempo empleado, además de la solución final al problema si se alcanza. El programa hace uso de dos utilidades que permiten compilar el código STRIPS o PDDL que son JavaGP y PDDL4J. Una vez ejecutado el problema de planificación, se obtiene la salida en pantalla y también se puede imprimir el problema completo incluida la solución. El objetivo ha sido crear un programa que permita al usuario editar rápidamente archivos STRIPS y PDDL, los pueda compilar velozmente y obtener el resultado en un solo sitio, con una salida mucho más clara, organizada y entendible y se evite el problema de tener que usar editores externos y una ventana de línea de comando para ejecutar GraphPlan. Plague is a text editor for files written in action languages, such as STRIPS and PDDL, which allows running the GraphPlan algorithm from the domain archives and edited problems, and finding a solution to the proposed problem. The goal of the editor is primarily for pedagogical purposes: it is simple to use and comes equipped with a variety of examples in both action languages, so that the user can gradually learn. In addition, as the editor runs it allows the user to observe the step by step development of the GraphPlan algorithm: the operators being executed, the no-ops that have been followed, the mutex applied at each level and the time spent, as well as the final answer to the problem, if reached. The program uses two utilities allowing the STRIPS or PDDL code to be compiled: JavaGP and PDDL4J. Once the planning problem has been executed, the result is shown on screen and the complete problem can also be printed, including the solution. The objective has been to create a program that allows the user to quickly edit STRIPS and PDDL archives, to compile them swiftly and obtain the solution in a single place, with a result that is clear, organised and understandable, thus avoiding the problem of having to use external editors and command prompts to execute GraphPlan.