University of Twente Student Theses


Towards believable characters in the virtual storyteller

Bragt, Jasper (2010) Towards believable characters in the virtual storyteller.

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Abstract:The Virtual Storyteller is a multi-agent automated story generation application that can generate stories by simulating a virtual world in which character agents pursue their goals. The goal of this research has been to make the characters of the Virtual Storyteller more interesting and believable and also to give the reader of the stories more insight in the mind of the characters. This thesis describes a new form of goal management for the Character Agents of the Virtual Storyteller. Where previously, characters chose randomly between possible goals, this work proposes an implementation solution (based on the PSI theory) to the goal of providing the characters with self-motivation in order to enable them to make informed decisions based on their characteristics. Personality traits and interests have been identified as the main factors of self-motivation and have been incorporated in a motivational goal management algorithm. In addition to the character's self-motivation, the Virtual Storyteller's fabula model has been extended to incorporate a dramatic choice data structure, which embodies an interesting branching point in the storyline where characters are posed with choices that are often exclusive. Dramatic choice has been integrated in the Virtual Storyteller's fabula structure allowing the presentation layer to incorporate such situations in the Virtual Storyteller's stories in the future. The stories will then be able to communicate a character's choices and motivations to the reader.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Interaction Technology MSc (60030)
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