We study in this paper the integration of elastic and streaming traffic on a same link in an IP network. We are specifically interested in the computation of the mean bit rate obtained by a data transfer. For this purpose, we consider that the bit rate ...

Nowadays, Web services are usually aggregated into a composite one to satisfy customer's more and more complex requirements. Generally, there may be several different candidate services to carry out one task in a composite service, so a choice needs ...

This paper puts forward a grid resource discovery mechanism based on Mobile Agent. We introduce the total framework, work mechanism of system and analyze a strategy of resource discovery. Key words: Resource discovery, Mobile Agent, Virtual Organization

This paper identifies and presents relevant differencesbetween network measurement and simulation for testingnetwork mechanisms. The intention is to uncover a broadspectrum of differences by using a realistic and dynamictraffic load. For this task a ...

Mobile services are steadily gaining greater foothold in everyday life, both in leisure and business. However, a real mobile services breakthrough, other than voice calls and SMS, has not yet been realized. This study focuses on how different dimensions ...

Social tagging describes a community of users labeling web content with tags. It is a simple activity that enriches our knowledge about resources on the web. For a computer to help users search the tagged repository, it must know when tags are good or ...

The growing availability of information on the Web has raised a challenging problem: can a Web-based information system tailor itself to different user requirements with the ultimate goal of personalizing and improving the users' experience in accessing ...

Universities have severe difficulties in using e-learning applications successfully due to organizational problems to provide them. Providing a web-based learning environment is an enormous effort not only from the didactical and organizational perspective, ...

To build a Web-based community it's necessary to create a structure¿an edifice¿in which this community can live and function. The construction of a physical structure (a house or office complex, for example) is a useful metaphor for the different subareas ...

Web-based access to sensitive and confidential data is realized today via different approaches, using a variety of methods to specify and combine access control policies. In an optic of change management and evolution, a structured and flexible model ...

In this paper, we explore the use of domainindependent and domain-specific ontologies to find matching service descriptions.The domainindependent relationships are derived using an English thesaurus after tokenization and part-of-speech tagging. Thedomain-specific ...

It is now common for academic institutes, government sectors and commercial corporations all over the world to engage in collaborative, complex applications. Most of them require international and interoperable access to large quantities of distributed, ...

Web service modeling research is largely limited to service conversation i.e. choreography. Recently, we have proposed a method to model both service orchestration and choreography using a FSM. But a flat approach (i.e. modeling at one level only) is ...

Role based security and access to information in a portal is the current trend, but be prepared to find the concept of defining who belongs in each "role" much more difficult than it seems. Colleges have a lot of "gray" areas.Prospective students, students, ...

Collaborative and distributed visualization applications generally require access to high-performance and high-end resources that are both expensive to own and maintain. Often there are also a limited number of such resources available. The development ...

In this study, 150 undergraduates answered questions about their Internet usage and completed a loneliness and an Internet self-efficacy questionnaire. A factor analysis of the Internet usage items revealed three facets of online recreation, including, ...

Web users are not passive, but provide valuable information throughout the process of information generation, delivery and access. User-provided information is openly available in various novel web services and can often be a valuable resource for constructing ...

On-demand streaming from a remote server through best-effort Internet poses several challenges because of network losses and variable delays. The primary technique used to improve the quality of distributed content service is replication. In the context ...