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Episodic Memory with Believable Forgetting
Soukup, Tomáš ; Brom, Cyril (advisor) ; Kadlec, Rudolf (referee)
Title: Episodic Memory with Believable Forgetting Author: Tomáš Soukup Department: Department of Software and Computer Science Education Supervisor: Mgr. Cyril Brom, Ph.D., DSCSE Abstract: Presented thesis introduces a model of episodic memory for virtual humans extended by believable forgetting based on rating of memories according to their importance. It is inspired by a psychological model of E. Tulving and experiments of W.A. Wagenaar and M. Linton and builds on a memory model for a human-like agent developed by Klára Pešková, which we modified for the needs of forgetting. Our model takes advantage of the level-of-detail approach to forget the parts of memories gradually. In addition to the age and particularity of memories, emotiveness is also considered during the rating of memories. A simple emotional model was created for this purpose. The functionality of our model was verified by implementing it into a prototype application, which simulates the life of a virtual human in a virtual world. Our experiments showed that the behavior of our model, when configured properly, corresponds with the psychological concepts. Keywords: episodical memory, forgetting, virtual human, emotion, believability
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Episodic Memory with Believable Forgetting
Soukup, Tomáš ; Brom, Cyril (advisor) ; Kadlec, Rudolf (referee)
Title: Episodic Memory with Believable Forgetting Author: Tomáš Soukup Department: Department of Software and Computer Science Education Supervisor: Mgr. Cyril Brom, Ph.D., DSCSE Abstract: Presented thesis introduces a model of episodic memory for virtual humans extended by believable forgetting based on rating of memories according to their importance. It is inspired by a psychological model of E. Tulving and experiments of W.A. Wagenaar and M. Linton and builds on a memory model for a human-like agent developed by Klára Pešková, which we modified for the needs of forgetting. Our model takes advantage of the level-of-detail approach to forget the parts of memories gradually. In addition to the age and particularity of memories, emotiveness is also considered during the rating of memories. A simple emotional model was created for this purpose. The functionality of our model was verified by implementing it into a prototype application, which simulates the life of a virtual human in a virtual world. Our experiments showed that the behavior of our model, when configured properly, corresponds with the psychological concepts. Keywords: episodical memory, forgetting, virtual human, emotion, believability
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The Virtual Being's Mind
Brom, C. ; Lukavský, Jiří
Virtual beings are being used in computer games, film industry, education and even in therapy. They need a functional model of mind – to process the signals from environment, to set their goals and to act. In this work we try to define the term of virtual being and to illustrate this concept in one particular project. Virtual beings in IVE Project have three remarkable features: 1) their perception is based on Gibson's theory of affordances, 2) their actions are planned using Belief-Desire-Intention theory, 3) their behavior can be dynamically simplified using Level-of-Detail technique.
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Why is the border between a virtual being and its world fuzzy
Brom, C. ; Lukavský, Jiří
In this article we first introduce the IVE project (Intelligent Virtual Environment - developed in 2005 at MFF UK, Prague) and ISMA model (Intention - Suitability - Materialisation - Advice) and describe related theoretical issues of the project. IVE is a simulator of large virtual worlds populated with virtual beings, which uses a new model called ISMA for virtual world representation. This model is inspired by Gibson's affordace theory and Bratman's theory of practical reasoning. Gradually we realized that some project results also have psychological and philosophical interpretation, which is being discussed in this article.
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