A novel solution for the development of collaborative virtual environment simulations in large scale

2005 ◽  
Author(s):  
A. Boukerche ◽  
D. Duarte ◽  
R. Araujo ◽  
L. Andrade ◽  
A. Zarrad
Keyword(s):  
Virtual Environment ◽  
Large Scale ◽  
Collaborative Virtual Environment

SUPPORTING LARGE-SCALE COLLABORATIVE VIRTUAL ENVIRONMENT IN GRID

GCA 2007 ◽  
2007 ◽  
Author(s):  
LIANG ZHANG ◽  
QINGPING LIN ◽  
HOON KANG NEO ◽  
GUANGBIN HUANG ◽  
ROBERT GAY ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Large Scale ◽  
Collaborative Virtual Environment

scholarly journals ALVIC versus the Internet: Redesigning a Networked Virtual Environment Architecture

2008 ◽  
Vol 2008 ◽  
pp. 1-9 ◽  
Author(s):  
Peter Quax ◽  
Jeroen Dierckx ◽  
Bart Cornelissen ◽  
Wim Lamotte
Keyword(s):  
Virtual Environment ◽  
Large Scale ◽  
Virtual Communities ◽  
Real Life ◽  
Point Of View ◽  
The Internet ◽  
Generic Framework ◽  
Short Period ◽  
Networked Virtual Environment ◽  
Near Future

The explosive growth of the number of applications based on networked virtual environment technology, both games and virtual communities, shows that these types of applications have become commonplace in a short period of time. However, from a research point of view, the inherent weaknesses in their architectures are quickly exposed. The Architecture for Large-Scale Virtual Interactive Communities (ALVICs) was originally developed to serve as a generic framework to deploy networked virtual environment applications on the Internet. While it has been shown to effectively scale to the numbers originally put forward, our findings have shown that, on a real-life network, such as the Internet, several drawbacks will not be overcome in the near future. It is, therefore, that we have recently started with the development of ALVIC-NG, which, while incorporating the findings from our previous research, makes several improvements on the original version, making it suitable for deployment on the Internet as it exists today.

scholarly journals Collaborative Virtual Environment to Simulate on-the-Job Aircraft Inspection Training Aided by Hand Pointing

2005 ◽  
Vol 49 (25) ◽  
pp. 2216-2220
Author(s):  
S. Sadasivan ◽  
R. Rele ◽  
J. S. Greenstein ◽  
A. K. Gramopadhye ◽  
J. Masters ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Visual Inspection ◽  
Training Environment ◽  
Virtual Training ◽  
Collaborative Virtual Environment ◽  
Feedback Training ◽  
Inspection Process ◽  
Safety And Reliability ◽  
The One ◽  
Inspection Performance

The human inspector performing visual inspection of an aircraft is the backbone of the aircraft inspection process, a vital element in assuring safety and reliability of an air transportation system. Training is an effective strategy for improving their inspection performance. A drawback of present-day on-the-job (OJT) training provided to aircraft inspectors is the limited exposure to different defect types. Previous studies have shown offline feedback training using virtual reality (VR) simulators to be effective in improving visual inspection performance. This research aims at combining the advantages of VR technology that includes exposure to a wide variety of defects and the one-on-one tutoring approach of OJT by implementing a collaborative virtual training environment. In an immersive collaborative virtual environment (CVE), avatars are used to represent the co-participants. In a CVE, information of where the trainer is pointing can be provided to a trainee as visual deictic reference (VDR). This study evaluates the effectiveness of simulating on-the-job training in a CVE for aircraft inspection training, providing VDR slaved to a 3D mouse used by the trainer for pointing. The results of this study show that the training was effective in improving inspection performance.

A New Partitioning Method Based on AOI Model Matching in CVE Systems

2012 ◽  
Vol 241-244 ◽  
pp. 3116-3120
Author(s):  
Xiao Mei Hu ◽  
Biao Wang
Keyword(s):  
Virtual Environment ◽  
Virtual World ◽  
Experimental Results ◽  
Model Matching ◽  
Collaborative Virtual Environment ◽  
Area Of Interest ◽  
Key Issues ◽  
Partitioning Problem ◽  
Server Architecture

Collaborative Virtual Environment (CVE) system supports a large number of users to explore a virtual world and interact with each other through networks, so one of the key issues in the design of scalable CVE systems is the partitioning problem. Existing partitioning algorithms in CVE systems based on multiple-server architecture, in our opinion, hardly consider the communication character of virtual environment. In this paper, we propose a new partitioning method based on area of interest (AOI) model matching to improve the quality of partitioning. The experimental results show preliminarily that our partitioning approach based on AOI model matching does decrease the traffic among the servers in the system and improve the partitioning performance.

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