Bogdan Okreša Đurić

• PhD in Information and Communication Sciences
• Research Assistant at University of Zagreb

Cognitive agents are artificial intelligence systems that are able to communicate in a way that is as much as possible acceptable to humans. Technologies like natural language processing (NLP), text to speech (TTS), speech to text (STT) and motion capture (MoCap) are usually applied to provide such an interface. In this work-in-progess paper we pre...

Internationalization is a global trend of society development. In order to get on board with this trend, universities are making great efforts to create possibilities for students to participate in mobility and exchange programs and learn from others. Students’ decision to take this great step get out of their comfort zone and manage their stay in...

Interactive fiction (IF) is a type of computer game in which players use text commands inside a literary narrative in order to influence the environment, the story and/or characters. We have developed an agent based game engine layer that allows us to introduce intelligent agents into such games including but not limited to chatbots, autonomous age...

An intelligent virtual environment simulates a physical world inhabited by autonomous intelligent entities. Multi-agent systems have been usually employed to design systems of this kind. One of the key aspects in the design of intelligent virtual environments is the use of appropriate ontologies which offer a richer and more expressive representati...

A short review on the idea of a synergy of knowledge management and conceptual modelling methods is given in this paper. Innovative systems fostering knowledge management in modern businesses are necessary for safe and efficient knowledge management and are a welcome addition to slowly changing business models in a turbulent socio-economical enviro...

Knowledge management is the concept that can turn the tide in the context of market competitiveness and competitive advantage in any area of organised activity. The benefit knowledge management may bring to an organisation is not tied to human organisations only though, as artificial agents, initially created as an imitation of humans, can benefit...

The research proposed here aims at providing a novel organisational metamodel for Large-Scale Multiagent System (LSMASs), with special emphasis on modelling organisational dynamics. Ontology used for the metamodel will comprise selected concepts of human organisation applicable to LSMAS and a particular application domain thereof, Massively Multi-p...

This chapter provides an overview of modeling techniques for large-scale systems in the Internet of Things (IoT) environment with a special accent on smart self-sustainable cities. The authors present a framework for modeling Large-Scale Multi-Agent Systems (LSMASs) including a graphical modeling language, and a tool, that aim to facilitate develop...

In this paper, a new application case of the novel organizational metamodel for Large-Scale Mul-tiagent Systems (LSMASs) being developed is going to be presented. The mentioned metamodel is being tested on a new computer game of Role-Playing Game (RPG) genre by developing a game quest scenario through the model-driven approach. This new application...

The paper summarizes a number of recent application domains (ADs) for large-scale multiagent systems (LSMASs) including the Industry 4.0, cooperative intelligent transport systems (C-ITSs), smart grids, smart cities, virtual & augmented reality (VAR) and electronic sports (eSports). These ADs intentionally overlap to show some of the basic building...

An overview of the Large-Scale Multi-Agent Modelling of Massively Multi-Player On-Line Role-Playing Games (ModelMMORPG) project financed by the Croatian Science Foundation is provided. ModelMMORPG aimed on studying Massively Multi-player Online Role-Playing Games (MMORPGs) using a combined computer science Multiagent System (MAS) and a social scien...

The research presented in this paper is a thesis proposal with the main goal of defining an ontology comprising chosen organisational concepts applicable to large-scale multiagent systems (LSMAS), and building a metamodel for modelling selected organisational features in such systems. The method of applying aspects of human organisations to multiag...

Massively multi-player on-line role-playing games (MMORPGs) present a large-scale, digital environment that fosters organizational behaviour of players in which multi-agent systems (MASs) can be used for various purposes including but not limited to automated testing, bot detection or analysis of social player behaviour and human – artificial agent...

A work-in-progress agent-based framework for automated testing of an open-source massively multi-player on-line role playing game (MMORPG) called The Mana World is presented. The implemented system, in its current state, allows for model-driven development of tests using a graphical user interface (GUI), implementation of automated artificial playe...

Large-scale multi-agent systems (LSMAS), a rather novel concept in the domain of multi-agent systems (MAS), are reaching for soaring heights in the wake of the Internet of Everything era. Interacting pieces of software on interconnected machines, enabled by rapid development of the Internet and connected devices, are creating systems comprising ten...

Massively On-Line Role Playing Games (MMORPGs) costitute an ideal test-bed scenario for the development and testing of large-scale agent organizations. In this paper the possibility of us- ing a recent agent-based framework called Smart Self-Sustainable Human Settlements (SSSHS) in agent based organizations is analyzed. We provide a conceptual fram...

The main objective of this research is to ease organizational design of large-scale multi-agent systems (LSMAS) development. Methods including ontology engineering, metamodeling and code generation are proposed to achieve the set goal. The resulting modeling tool is expected to aid in development of LSMAS for numerous application domains.

Large-scale multi-agent systems (LSMAS) development methods are becoming a necessity in a world of ever growing numbers of computer agents incorporated in various devices and services used by people in all areas of life. Organization in such large-scale systems, becomes therefore a very relevant concept in research on LSMAS, as the mentioned agents...

A social network analysis is conducted in an instance in the Mana World, an open source massively on-line role playing game (MMORPG), during a controlled experiment in which data from 181 player characters was gathered during a period of 2 months. The presented results are part of the first phase of the Model MMORPG (Large-Scale Multi-Agent Modelin...

In the last decade advances of computer technologies have lead towards a technological reality where the line between information consumers and information producers is blurred. This technological omnipresence allows for unprecedented data creation capabilities. Based on various data sources, it seems humans have fully embraced data-generating acti...

An instance of a massively on-line role playing game called The Mana World is analyzed for its social networks. The gathered data is the result of the first phase of the ModelMMORPG project in which players played a specially designed quest during a controlled experiment. Observations based on the monitored virtual community behaviour and individua...

This paper deals with a problem of describ- ing role-playing games in a computer readable format, such as an ontology. Ontology as a model represents a union of gaming, knowledge and artificial intelligence aproaches, and is therefore interesting to research as a description of a domain included in the modern market of role-playing games (and espec...

The social web or web 2.0 has become the biggest and most accessible repository of data about human (social) behavior in history. Due to a knowledge gap between big data analytics and established social science methodology, this enormous source of information, has yet to be exploited for new and interesting studies in various social and humanities...

Massively Multi-Player On-Line Role-Playing Games (MMORPG) give us the opportunity to study two important aspects of computing: (1) large-scale virtual social interaction of people (players) and (2) the design, development and coordination of large-scale distributed artificial inteligence (AI). A common denominator for both aspects are the methods...

The social web has become a major repository of social and behavioral data that is of exceptional interest to the social science and humanities research community. Computer science has only recently developed various technologies and techniques that allow for harvesting, organizing and analyzing such data and provide knowledge and insights into the...

Massively Multi-player Online Role Playing Games (MMORPGs) have become rather popular type of online games which include a larger number of players who play together or against each other. In order to increase artificial intelligence of these kind of games one of prerequisites is to determine a model of different players' behaviour which would enab...

Programming is hard and demanding course that presents a problem for many computer science students. In order to try to make programming courses more interesting and engaging for students various approaches that use computer games as an aiding means in programming courses have been proposed and implemented. Computer games, as a well- known source o...

Since there are many ways in which one could establish a multiagent knowledge-based system, some of the most popular ways should be evaluated and presented in an end-user-friendly form. One such assumption is based on the phenomenon of implicit culture, where agents interact with each other. Such a system has been developed, but has some room for i...