Predicting network traffic for collaborative virtual environments

Greenhalgh, Chris; Benford, Steve; Bullock, Adrian; Kuijpers, Nico; Donkers, Kurt

doi:10.1016/s0169-7552(98)00209-8

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…The past can also be a resource for predictive resource management, as in the QoS management system of the MASSIVE CVE system (Greenhalgh 1998) and the web page prefetcher of (Signer 2000).…”

Section: The Past As Part Of Contextmentioning

confidence: 99%

A Historical View of Context

Chalmers

2004

Comput Supported Coop Work

127

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Abstract. This paper re-examines a number of the approaches, origins and ideals of context-aware systems design, looking particularly at the way that the past influences what we do in our ongoing activity. As a number of sociologists and philosophers have pointed out, past social interaction, as well as past use of the heterogeneous mix of media, tools and artifacts that we use in our everyday activity, influence our ongoing interaction with the people and media at hand. We suggest that the past is thus part of one's current context, and can be seen as combining and interweaving the temporal and subjective patterns of individuals' use of heterogeneous media as well as objectively structured representations of individual media. Based on this theoretical discussion, we present a number of critiques, examples and suggestions for systems designs that reflect this historical aspect of context, and which make good use of the past in supporting ongoing user activity.

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Section: The Past As Part Of Contextmentioning

confidence: 99%

A Historical View of Context

Chalmers

2004

Comput Supported Coop Work

127

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“…Research on classification of and statistics about tasks on a shared object was conducted by Greenhalgh, Benford, Bullock, Kuijpers, and Donkers (1998). They analyzed network traffics and behaviors of users within a collaborative conference system using MASSIVE (Greenhalgh, 1997a(Greenhalgh, , 1997bGreenhalgh et al).…”

Section: Related Workmentioning

confidence: 99%

“…They analyzed network traffics and behaviors of users within a collaborative conference system using MASSIVE (Greenhalgh, 1997a(Greenhalgh, , 1997bGreenhalgh et al). The results showed that the most frequent tasks were translation and rotation of avatars or objects.…”

Section: Related Workmentioning

confidence: 99%

Supporting Fine-Grained Concurrent Tasks and Personal Workspaces for a Hybrid Concurrency Control Mechanism in a Networked Virtual Environment

Lee

Lim

Kim

et al. 2012

Presence: Teleoperators and Virtual Environments

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A concurrency control mechanism for a networked virtual environment is a key element in many collaborative computer-aided design applications. However, conventional object-based locking mechanisms restrict the behaviors of nonowners, and an attribute-based locking mechanism may produce another problem called task-surprise, which disturbs users' collaboration. In this paper, we propose a hybrid concurrency control mechanism that reduces restrictions of nonowners' behaviors and tasksurprises in a networked virtual environment. The proposed method consists of two concurrency control approaches: task-based concurrency control and personal workspaces. The task-based concurrency control approach allows nonowners to do some tasks if they do not conflict with the tasks of the owner of the shared object. The personal workspaces approach provides an independent workspace where a user can manipulate copies of the shared objects. The proposed method was applied to a collaborative level design for a large-scale online game as a case study. We evaluated its performance by experiments and user studies to check acceptance and usability of the proposed method.

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