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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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EASIMEN - Sandbox pro umělé bytosti v simulovaném prostředí
Hencz, Attila ; Neruda, Roman (advisor) ; Brom, Cyril (referee)
In the present work we investigate the creation of a exible nearuniversal simulation environment for arti cial intelligence with embodiment and real-time simulation in mind. We also take a look at the problematics associated with the functioning of such an systems and the methods that can be used in a simulation of this kind. The current implementation of the simulation environment is not a complete system, but rather more separate projects which are showcases of certain aspects of the problematics at hand.
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Controlling Virtual People
Gemrot, Jakub ; Brom, Cyril (advisor) ; Dignum, Frank (referee) ; Holeňa, Martin (referee)
Title: Controlling Virtual People Author: Mgr. Jakub Gemrot Department: Department of Software and Computer Science Education Supervisor: Mgr. Cyril Brom, PhD. Abstract: In this thesis, we provide a computational formalization of reactive planning as a paradigm for decision making of intelligent virtual agents and videogame non-player characters. We formalize agent decision-making (ADM) as a process of deciding on which body actions to execute next and differentiate it from agent reasoning as a process of computing facts needed for decision making. We show that imperative programming languages are not suitable for ADM specification and explain why they are not suitable. Thereafter, we create a new computational model that we use as the basis for the definition of Behavior Design Language (BDL). We show that BDL can model decision-making specified by scripting, hierarchical finite-state machines, AgentSpeak(L), GOAL, SPOSH and Behavior trees. Importantly, BDL can model these approaches economically in terms of the number of behavior primitives. The key strengths of the BDL language are: versatility (it can mix decision making patterns of multiple languages together), extensibility (it allows developers to devise new language primitives as they see fit), and generality (it can abstract any computable...
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Integration of process modelling into the multiagent framework IVE
Návrat, Jan ; Brom, Cyril (advisor) ; Kadlec, Rudolf (referee)
The thesis focuses on a new method of designing and controlling multiagent worlds, applying the technique named "process modeling" currently used by commercial companies. The goal is to use the process procedures in order to improve and simplify designing of multiagent worlds. The thesis describes the design and implementation of a tool for process modeling extended by the possibility of IVE multiagent world simulation. The IVE multiagent world is further expanded by adding the tools for monitoring the extended processes and the possibility to use them in order to control these worlds. The thesis finally summarizes the main advantages of the new method and outlines possible further improvements. The reader of the thesis is also introduced to the area of agents, multiagent worlds and process modeling.
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Level of detail AI for a simulation of a large artificial environment
Zíta, Petr ; Brom, Cyril (advisor) ; Poch, Tomáš (referee)
Level Of Detail techniques (shortly LOD) are well known in computer graphics, but they are applied also in complex simulations and virtual worlds (aka LOD AI ). On the same principle we can simplify the simulation of behavior in less important places for user and signi cantly decrease simulation complexity and system resources. In this thesis different ways of LOD AI techniques functioning in particular applications will be studied and then the formal de nitions of LOD AI techniques usage in simulations will be introduced. We will also outline common problems that LOD AI techniques implementations usually face and propose abstract algorithms for solution. We will also introduce additional LOD AI techniques of LOD in uences and LOD expirations with its concrete implementation in framework IVE and include appropriate observations of result quality.
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Benchmarks for the project Pogamut
Danilák, Michal ; Brom, Cyril (advisor) ; Sýkora, Ondřej (referee)
In the present work we design and develop the benchmarks for the computer controlled agents (bots) into the game Unreal Tournament 2004. In the first part of the work, we try to identify the most important aspects of the bots which should be tested. In the second part we design and develop the environments for testing the selected aspects. In the third part we implement the reference solutions (bots) for each of the created environments.
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Sledování očních pohybů ve virtuální realitě
Jirásek, Jozef ; Brom, Cyril (advisor) ; Lukavský, Jiří (referee)
In this work we present an application for observing and recording data about movements of a human eye when looking at a computer screen. We use two commercially available devices: I4Control by Medicton Group Ltd. and TrackIR 4 by NaturalPoint. We build a software package which interfaces with the SpaNav system for cognitive research. We also provide an extensible framework for creating other eye tracking applications.
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Taktická hra pre viacej hráčov
Kis, Ján ; Brom, Cyril (advisor) ; Sýkora, Ondřej (referee)
The tactics single-player games like UFO from Altar Interactives are quite popular in these days. The most notable feature of UFO is that the actions of game units can be planned in advance by the player while the game is paused. During the recent boom of multiplayer games a question arose of what should a multiplayer to a game such as UFO look like. This project addresses the question and discusses several possibilities of the multiplayer design to such a game. The main contribution of the project is the actual game prototype which tests the viability and entertainment of the multiplayer design introduced by the thesis.
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Egocentric module for episodic memory
Vyhnánek, Jan ; Brom, Cyril (advisor) ; Sýkora, Ondřej (referee)
The present research in cognitive psychology concerns with the issue of how human beings remember positions of objects in space - and what mental representation of space they create. Scientists infer from experiments that human beings create several spatial representations which differ in accuracy and rate of forgetting and which are specified with respect to different spatial frames of reference. However, we do not know how exactly these representions work. As far as we know there is no computational model concerning with this issue, which would be useful for understanding of these representations. The goal of this work is to extend the model of episodic-like memory developed at MFF UK with a mechanism of creating spatial representations. We will examine how the representations are created and which representations are the most important for orientation of a human-like agent. The model was tested on simulations of a psychological experiment and it partially predicted its results. The goal of the model is not to give a full answer to this problem. It is supposed to be an attempt for starting research in the area which has not been researched this way yet. The results of this work may contribute to better understanding of how human beings represent positions of objects and it may be useful for designing...
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