Enabling technology for distributed multimedia applications

Wong, J.W.; Lyons, Kelly; Evans, David; Velthuys, R.; Bochmann, Gregor von; Dubois, Éric; Georganas, N.D.; Neufeld, Gerald W.; Özsu, M. Tamer; Brinskelle, J.; Hafid, Abdelhakim; Hutchinson, Norman C.; Iglinski, Paul; Kerhervé, Brigitte; Lamont, Louise; Makaroff, Dwight; Szafron, Duane

doi:10.1147/sj.364.0489

Cited by 15 publications

(5 citation statements)

References 19 publications

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The News-On-Demand System [18,25] is as a multimedia project developed at the University of Alberta in Canada. Each news document consists of textual and multimedia elements with spatial and temporal relationships.…”

Section: The News-on-demand Systemmentioning

confidence: 99%

A metadata approach to multimedia database federations

Becarevic

Roantree

2004

Information and Software Technology

View full text Add to dashboard Cite

Section: The News-on-demand Systemmentioning

confidence: 99%

A metadata approach to multimedia database federations

Becarevic

Roantree

2004

Information and Software Technology

View full text Add to dashboard Cite

“…The CITR news-on-demand prototype (Wong et al 1997; runs in a fully distributed architecture, where multimedia documents are stored at various sites, which can be accessed from different places throughout the network. The database is the information provider.…”

Section: Case Study: News-on-demand Applicationmentioning

confidence: 99%

Quality-of-service adaptation in distributed multimedia applications

Hafid¹,

Bochmann

1998

Multimedia Systems

View full text Add to dashboard Cite

High-speed networks and powerful end-systems enable new types of applications, such as video-on-demand and teleconferencing. Such applications are very demanding on quality of service (QoS) because of the isochronous nature of the media they are using. To support these applications, QoS guarantees are required. However, even with service guarantees, violations may occur because of resources shortage, e.g., network congestion. In this paper we propose new adaptation approaches, which allow the system to recover automatically, if possible, from QoS violations (1) by identifying a new configuration of system components that might support the initially agreed QoS and by performing a user-transparent transition from the original configuration to the new one, (2) by redistributing the levels of QoS that should be supported, in the future, by the components, or (3) by redistributing the levels of QoS that should be supported immediately to meet end-to-end requirements based on the principle that (local) QoS violation at one component may be recovered immediately by the other components participating in the support of the requested service. The proposed approaches, together with suitable negotiation mechanisms, allow us (1) to reduce the probability of QoS violations which may be noticed by the user, and thus, to increase the user confidence in the service provider, and (2) to improve the utilization of the system resources, and thus to increase the system availability.

show abstract

“…This hardware could be combined in a heterogeneous fashion to enable linear scalability of the system from single workstation-class machines to networks of such workstations and multiprocessor machines, without restrictions on configurations. The server was developed in the context of a research project with the Canadian Institute for Telecommunications Research (CITR), whose research task was to explore enabling technologies for broad-band services [2]. The delivery of continuous media was one aspect of this project; others included quality of service monitoring and negotiation, media synchronization, multimedia databases as well as scalable video encoding methods.…”

Section: Introductionmentioning

confidence: 99%

Development and evolution of a heterogeneous continuous media server: a case study

Makaroff¹,

Hutchinson²

2005

J. Softw. Maint. Evol.: Res. Pract.

View full text Add to dashboard Cite

Media server software is significantly complicated to develop and maintain, due to the nature of the many interface aspects which must be considered. This paper provides a case study of the design, implementation, and evolution of a continuous media file server. We place emphasis on the evolution of the software and our approach to maintainability. The user interface is a major consideration, even though the server software would appear isolated from that factor. Since continuous media servers must send the raw data to a client application over a network, the protocol considerations, hardware interface, and data storage/retrieval methods are of the paramount importance. In addition, the application programmer's interface to the server facilities has an impact on both the internal design and the performance of such a server. We discuss our experiences and insight into the development of such software products within a small research-based university environment. We experienced two main types of evolutionary change: requirements changes from the limited user community and performance enhancements/corrections. While the former were anticipated via a generic interface and modular design structure, the latter were surprising and substantially more difficult to solve.

show abstract

Enabling technology for distributed multimedia applications

Cited by 15 publications

References 19 publications

A metadata approach to multimedia database federations

A metadata approach to multimedia database federations

Quality-of-service adaptation in distributed multimedia applications

Development and evolution of a heterogeneous continuous media server: a case study

Contact Info

Product

Resources

About