FROM DECISION TO ACTION: INTENTIONALITY, A GUIDE FOR THE SPECIFICATION OF INTELLIGENT AGENT'S BEHAVIOR

2006 ◽  
Vol 06 (01) ◽  
pp. 87-99 ◽  
Author(s):  
PIERRE-ALEXANDRE FAVIER ◽  
PIERRE DE LOOR
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Design Process ◽  
Behavioral Model ◽  
Agent Based Simulation ◽  
Agent Based ◽  
Agent Model ◽  
Intentional Agent ◽  
High Level

This article introduces a reflection about behavioral specification for interactive and participative agent-based simulation in virtual reality. Within this context, it is necessary to reach a high level of expressiveness in order to enforce interactions between the designer and the behavioral model during the in-line prototyping. It is required to consider the needs of semantic very early in the design process. The intentional agent model is exposed here as a possible answer. It relies on a mixed imperative and declarative approach which focuses on the link between decision and action. The design of a tool able to simulate virtual environment implying agents based on this model is discussed.

Agent-Based Modelling of Emotional Goals in Digital Media Design Projects

2018 ◽  
pp. 262-284 ◽  
Author(s):  
James Marshall
Keyword(s):  
Digital Media ◽  
Design Process ◽  
Role Play ◽  
User Profiles ◽  
Agent Based ◽  
Media Design ◽  
Development Teams ◽  
Shared Language ◽  
Design Projects ◽  
High Level

The author promotes agent-oriented models to identify, represent, and evaluate high-level abstractions of digital media design projects. The models include emotional goals, in addition to functional goals and quality goals, to describe feelings such as having fun, being engaged, and feeling cared for. To establish emotional goals, digital media design methods and processes were employed including the development of emotional scripts, user profiles, mood boards and followed an iterative creative design process. Using agent-oriented models proved to be highly successful not only to represent emotional goals such as fun, tension, and empathy but also to facilitate the ideation, creation, and progressive evaluation of projects. The design process supported communication between designers, developers, and other stakeholders in large multidisciplinary development teams by providing a shared language and a common artefact. The process is demonstrated by describing the development of Aspergion, a multiplayer online role play game that promotes respect for people with Asperger's Syndrome.

scholarly journals Causal Perception in Virtual Reality and its Implications for Presence Factors

2007 ◽  
Vol 16 (6) ◽  
pp. 623-642 ◽  
Author(s):  
Marc Cavazza ◽  
Jean-Luc Lugrin ◽  
Marc Buehner
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual World ◽  
Positive Impact ◽  
User Interaction ◽  
Experimental Setting ◽  
Psychological Phenomena ◽  
Knowledge Based ◽  
Causal Perception ◽  
High Level

Causality is an important aspect of how we construct reality. Yet, while many psychological phenomena have been studied in their relation to virtual reality (VR), very little work has been dedicated specifically to causal perception, despite its potential relevance for user interaction and presence. In this paper, we describe the development of a virtual environment supporting experiments with causal perception. The system, inspired from psychological data, operates by intercepting events in the virtual world, so as to create artificial co-occurrences between events and their subsequent effects. After recognizing high-level events and formalizing them with a symbolic representation inspired from robotics planning, it modifies the events' effects using knowledge-based operators. The re-activation of the modified events creates co-occurrences inducing causal impressions in the user. We conducted experiments with fifty-three subjects who had to interact with virtual world objects and were presented with alternative consequences for their actions, generated by the system using various levels of plausibility. At the same time, these subjects had to answer ten items from the Presence Questionnaire corresponding mainly to control and realism factors: causal perception appears to have a positive impact on these items. The implications of this work are twofold: first, causal perception can provide an interesting experimental setting for some presence determinants, and second, the elicitation of causal impressions can become part of VR technologies to provide new forms of VR experiences.

Army Unit Warfare Simulation Experiment by Using Agent Technology

2013 ◽  
Vol 655-657 ◽  
pp. 2392-2396
Author(s):  
Xiang Gang Liu ◽  
Hao Jun Wang ◽  
Fei Dong ◽  
Xiong Li
Keyword(s):  
Simulation Experiment ◽  
Critical Force ◽  
Agent Technology ◽  
Agent Based Simulation ◽  
Agent Based ◽  
Agent Model ◽  
Experiment System ◽  
Experiment Platform ◽  
Force Structure ◽  
Model And Simulation

The use of agent-based simulation experiment technology throughout the concept development process and simulation implementing may have a direct impact on the Army’s ability to resolve these critical force structure issues, inform the acquisition of future combat platforms, and determine the future use of new-style vehicles in an Army force. Thus, Army unit warfare simulation experiment by using agent technology is studied in this paper. The warfare task(s) expression is presented and warfare entity agent model is designed. Through an agent-based simulation experiment platform, EINSTein, the demonstration system is established and Army unit warfare simulation experiment is implemented, by which some results are obtained. Simulation experiment proves the feasibility and efficiency of our model and simulation experiment system, and shows its advantages in realizing real-time tactical warfare activities simulation.

scholarly journals Agent-Based Virtual Environments for Marketing

2011 ◽  
pp. 129-137
Author(s):  
Rui Wang ◽  
Xiangyu Wang
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Mixed Reality ◽  
Model System ◽  
Immersive Virtual Reality ◽  
Commercial Sector ◽  
System Framework ◽  
Agent Based ◽  
Learning Agents ◽  
Marketing Process

This chapter investigates the use of SecondLife as a virtual environment to help the commercial sector in marketing process. It presents the use of Immersive Virtual Reality concept to design a distributed marketing system for commercial sector based on the Benford’s Mixed Reality boundaries theory and Motivated Learning Agents model. System framework has been proposed in this chapter and boundaries as well as agents factors in this framework have been discussed.

Predicting Volatile Consumer Markets using Multi-Agent Methods

2013 ◽  
pp. 339-358 ◽  
Author(s):  
Abhijit Sengupta ◽  
Stephen E. Glavin
Keyword(s):  
Prediction Accuracy ◽  
Choice Function ◽  
Behavioral Model ◽  
Agent Based Simulation ◽  
Agent Based ◽  
Memory Length ◽  
Consumer Markets ◽  
Goods Market ◽  
Multi Agent ◽  
Consumer Memory

A behavioral model incorporating utility-based rational choice enhanced with psychological drivers is presented to study a consumer goods market, characterized by repeat purchase incidences by households. The psychological drivers incorporate purchase strategies of loyalty and change-of-pace, which affect the choice set of consumer agents in an agent-based simulation environment. Agent specific memories of past purchases drive these strategies, while attribute specific preferences and prices drive the utility-based choice function. Transactions data from a category in a supermarket is used to initialize, calibrate, and test the accuracy of predictions of the model. Results indicate that prediction accuracy at both macro and micro levels can be significantly improved with the incorporation of purchase strategies. Moreover, increasing the memory length beyond a certain limit does not improve predictions in the model, indicating that consumer memory of past shopping instances is finite and low and recent purchase history is more relevant to current decision making than the distant past.

Curious agents and situated design evaluations

2004 ◽  
Vol 18 (2) ◽  
pp. 153-161 ◽  
Author(s):  
ROB SAUNDERS ◽  
JOHN S. GERO
Keyword(s):  
Individual Experience ◽  
Agent Based Simulation ◽  
Art Gallery ◽  
Agent Based ◽  
Agent Model ◽  
Agent Behavior ◽  
Future Direction

This paper presents a possible future direction for agent-based simulation using complex agents that can learn from experience and report their individual evaluations. Adding learning to the agent model permits the simulation of potentially important agent behavior such as curiosity. The agents can then report evaluations of a design that are situated in their individual experience. The paper describes the architecture of curious agents used in the situated evaluation of designs. It then describes an example of the application of such curious agents in the evaluation of the curating of an exhibition in an art gallery.

scholarly journals VR Unmatched - Leveraging Non-experts as Co-Urban Designers

2020 ◽  
Author(s):  
Shuva Chowdhury ◽  
Marc Aurel Schnabel
Keyword(s):  
Virtual Reality ◽  
Real Time ◽  
Virtual Environment ◽  
Urban Design ◽  
Design Process ◽  
Design Research ◽  
End Users ◽  
Urban Spaces ◽  
Urban Forms ◽  
Immersive Virtual Environment

The recent development in Virtual Reality (VR) allows for novel engagement in participatory urban design. Despite that any design approach cannot include and address all items that are relevant or needed during a design process, social VR design instruments offer additionality via their real-time generation and visualisation possibilities that are unmatched in conventional realms. The research employs an anthropogenic approach to design research to engage end-users in the design process. An Immersive Virtual Environment (IVE) instrument 'SketchPad' allows laypersons to design successfully urban forms. SketchPad engaged laypersons in a meaningful design discussion and generations of urban spaces. The research discusses the findings of the experiments. The paper concludes with a reflection of how non-experts as co-designers can use IVE instruments to drive change of their neighbourhood proactively and to positively impact on the liveability of their neighbourhood.

scholarly journals VR Unmatched - Leveraging Non-experts as Co-Urban Designers

2020 ◽  
Author(s):  
Shuva Chowdhury ◽  
Marc Aurel Schnabel
Keyword(s):  
Virtual Reality ◽  
Real Time ◽  
Virtual Environment ◽  
Urban Design ◽  
Design Process ◽  
Design Research ◽  
End Users ◽  
Urban Spaces ◽  
Urban Forms ◽  
Immersive Virtual Environment

The recent development in Virtual Reality (VR) allows for novel engagement in participatory urban design. Despite that any design approach cannot include and address all items that are relevant or needed during a design process, social VR design instruments offer additionality via their real-time generation and visualisation possibilities that are unmatched in conventional realms. The research employs an anthropogenic approach to design research to engage end-users in the design process. An Immersive Virtual Environment (IVE) instrument 'SketchPad' allows laypersons to design successfully urban forms. SketchPad engaged laypersons in a meaningful design discussion and generations of urban spaces. The research discusses the findings of the experiments. The paper concludes with a reflection of how non-experts as co-designers can use IVE instruments to drive change of their neighbourhood proactively and to positively impact on the liveability of their neighbourhood.

scholarly journals Virtuality Index: Philosophical Justification

2021 ◽  
pp. 99-107
Author(s):  
Oksana Elkhova ◽  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual Worlds ◽  
Real World ◽  
User Involvement ◽  
Human Perception ◽  
Index Method ◽  
The Real ◽  
Virtual Realities ◽  
High Level

This article provides a philosophical justification for the concept of virtuality index (VR Index). The use of the index method is the novelty of this research and allows us to consider virtual reality from a new methodological perspective. In the study, VR Index is schematized: in the author’s opinion, it acts as a certain generalized relative indicator that serves to characterize changes in such a phenomenon as virtual reality. The basic components of VR Index are distinguished: immersion, involvement, and interactivity. They can be represented in quantitative and qualitative terms. VR Index can be schematically presented in the following way: VR Index = Im·Inv·Int (where Im – immersion, Inv – involvement, Int – interactivity). For each specific case, the above pattern takes the following form: VR Index = Imm·Invn·Intp (where the coefficients m, n, p > 0). Immersion characterizes the coverage of senses of a person in an artificially created environment. Involvement indicates the rational and the emotional components of a person’s mental sphere. Interactivity, in its turn, determines the user’s interaction with the virtual environment. Each of these components affects the value of VR Index. The author distinguishes two extreme cases: virtual realities with low and high VR Index. Virtual realities with low VR Index involve two main channels of human perception, i.e. vision and hearing, are characterized by minimal user involvement and weak interactivity; the users are well aware of the fact that they are interacting with a simulation of the real world. Virtual realities with high VR Index cover a large number of channels of human perception and have a high level of user involvement and interactivity; for the user, the events of the real and virtual worlds become indistinguishable from each other.

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