3D agent-based virtual communities

Lecture Notes in Computer Science, 2001

Intelligent agent systems have been the subject of intensive research over the past few years; they comprise one of the most promising computing approaches ever, able to address issues that require abstract modelling and higher level reasoning. Virtual environments, on the other hand, offer the ideal means to produce simulations of the real world for purposes of entertainment, education, and others. The merging of these two fields seems to have a lot to offer to both research and applications, if progress is made on a coordinated manner and towards standardization. This paper is a presentation of VITAL, an intelligent multi-agent system able to support general-purpose intelligent virtual environment applications.

Proc. Workshop on Cognitive Modeling of Agents and Multi-Agent Interactions (IJCAI), 2003

Design agents are rational agents that monitor and modify elements of a designed environment. Special characteristics of design agents include the ability to reason about patterns and concepts, and the ability to act autonomously in modifying or changing the design to achieve their own goals. 3D Virtual Worlds are multi-user distributed systems that provide a designed environment and a closed world environment for studying design agents in a multiagent system. We present a model for a design agent reasoning process and a ...

Proceedings of ACADIA 2002, 2002

Architectural design has relevance to the design of virtual worlds that create a sense of place through the metaphor of buildings, rooms, and inhabitable spaces. The design and implementation of virtual worlds has focused on the design of 3D form for fast rendering to allow real time exploration of the world. Using platforms that were originally designed for computer games, some virtual worlds now contain preprogrammed interactive behaviors. We present an agent model of virtual worlds in which the objects in the world have agency, that is, the objects can sense their environment, reason about their goals, and make changes to the environment. This agent model is presented and illustrated using a wall agent. Following from the wall agent, we generalize how agency can be attached to any 3D model in a virtual world.

2000

ABSTRACT Intelligent agent systems are a new perspective in modern computing. They exhibit a number of properties that allow them to address a wide range of areas–from academic and research purposes to industrial and commercial applications–in a solid, functional and effective way.

The Knowledge Engineering Review, 2008

The simulation of synthetic humans inhabiting virtual environments is a current research topic with a great number of behavioral problems to be tackled. Semantical Virtual Environments (SVEs) have recently been proposed not only to ease world modelling but also to enhance agent-object and agent-agent interaction. Thus, we propose the use of ontologies to define the world's knowledge base and to introduce semantic levels of detail that help the sensorization of complex scenes -containing lots of interactive objects. The object taxonomy also helps to create general and reusable operativity for autonomous characters -for example, liquids can be poured from containers such as bottles. On the other hand, we use the ontology to define social relations among agents within an artificial society. These relations must be taken into account in order to display socially acceptable decisions. Therefore, we have implemented a market-based social model that reaches coordination and sociability by means of task exchanges. This paper presents a multi-agent framework oriented to simulate socially intelligent characters in Semantic virtual environments. The framework has been successfully tested in 3D dynamic scenarios while simulating a virtual university bar, where groups of waiters and customers interact with both the objects in the scene and the other virtual agents finally displaying complex social behaviors.

Aiide, 2006

2019

The development of applications with Virtual Reality technology is currently on the rise. However, there is no formal methodology or architecture for the creation of this type of systems. However, to solve the problem, traditional information systems methodologies, traditional information systems methodologies are used that have been adapted to the development of this type of applications, which has caused a waste of the resources that these technologies offer. That is why we propose the design of architecture specifically for a 3D Virtual Environment, using an artificial intelligence technique, in this case, an Intelligent Reactive Agent. The proposed architecture was developed from a Videogame architecture.

The International journal of Multimedia & Its Applications, 2010

In recent years developments in gaming technology have focused on Massively MultiUser Persistent Worlds. This virtual communities host thousands of users interacting with each other through the Internet in real time. Such communities require new distributed programming paradigms for implementing the virtual life management. In this work we present a practical methodology to add Virtual Agents to Massively MultiUser Persistent Worlds. To demonstrate the use of our methodology we present a realworld application. It adds a set of virtual agents to a 3D chat. The agents survey the users to obtain data to evaluate the processes and components of the virtual world.

2004

Combination of logic-based artificial intelligence with virtual reality in intelligent agent systems is an approach not extensively sought after to date. It is our belief that significant gain is to be expected if the technical challenges involved are overcome. In this paper, we describe the mVITAL intelligent agent system, which is our latest effort towards this direction. The system is a contemporary intelligent agent system with applications in numerous areas, including intelligent virtual environments and formal artificial intelligence research. The system focuses largely on logic-based approaches, which are present in almost every aspect of it, including modeling, knowledge representation, definition of agent behaviors and inter-agent communication. In addition, virtual manifestation of the world and agents is also an inherent characteristic of the system. The system, even if still in a development and evaluation stage, has already been employed in experimental and educational applications, demonstrating the potential benefits of such an approach.

2002

In this paper we will outline the requirements for a software platform supporting embodied conversational agents. These requirements encompass computational concerns as well as presentation facilities, providing a suitably rich environment for applications deploying conversational agents. We will then propose a platform based on the distributed logic programming language DLP and X3D, the extensible Web3D format. Three case studies will be described, illustrating the potential of the DLP+X3D platform: a multiuser game with autonomous players, avatars commenting on rich media presentations, and a gesture scripting language for humanoids based on dynamic logic. In conclusion, we will discuss related work and review the evaluation criteria that pertain to the deployment of embodied conversational agents in rich media 3D environments.