Files
Document type
ArticleVersion
Accepted versionPublication date
All rights reserved
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/124913
Assistant Agents to Advice Users in Hybrid Structured 3D Virtual Environments
Journal Title
Director/Tutor
Additional contribution
Journal ISSN
Volume Title
Abstract
Hybrid structured 3D Virtual Environments model serious activities in immersive 3D spaces, where participants are human and SW agents, and their interactions are regulated by an OCMAS (Organization Centered Multi-Agent System). In this context, both OCMAS social model and the tasks that users need to accomplish can be rather complex, and thus, users may benefit from having an assistance service. Hence, we propose Personal Assistant agents (PA) which, based on knowledge about the OCMAS specification and current system state, provide the user with an advice (a plan) to achieve her goal. Additionally, we implement this service with PLAN-EA, an Extension of the $A^{\ast}$ algorithm that generates plans for a user whose actions may depend on other users' actions. Thus, PAs provide plans that do not only include assisted user actions but other users' ones. We illustrate our approach by means of v-mWater -an online water market- and make a comparative analysis, with and without assistance, where efficiency -in terms of number of user actions- shows an improvement (7 vs 10.8), efficacy -percentage of completed tasks- also improves (93% vs 77%), and assistance's overall satisfaction is positive.
Related resource
Subject (English)
Citation
Citation
ALMAJANO, Pablo, et al. Assistant Agents to Advice Users in Hybrid Structured 3D Virtual Environments. Computer Animation and Virtual Worlds. 2014. Vol. 25, num. 3-4, pags. 495-504. ISSN 1546-4261. [consulted: 6 of October of 2026]. Available at: https://hdl.handle.net/2445/124913