P2P SCCM: Service-Oriented Community Coordinated Multimedia over P2P and Experience on Multimedia Annotation Service Development

P2P SCCM: Service-Oriented Community Coordinated Multimedia over P2P and Experience on Multimedia Annotation Service Development

Jiehan Zhou (University of Oulu, Finland), Mika Rautiainen (University of Oulu, Finland), Zhonghong Ou (Aalto University, Finland) and Mika Ylianttila (University of Oulu, Finland)
Copyright: © 2012 |Pages: 18
DOI: 10.4018/978-1-60960-774-6.ch014
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Peer-to-Peer Service-oriented Community Coordinated Multimedia (SCCM) is envisioned as a novel paradigm in which the user consumes multiple media through requesting multimedia-intensive Web services via diversity display devices, converged networks, and heterogeneous platforms within a virtual, open and collaborative community in this chapter. A generic P2P SCCM scenario is created and examined first. A SCCM model is designed with the adoption of the service orientation approach and principles. A tunneled hierarchical P2P model is designed for improving performance of service lookup and session setup. Next, performance analysis is presented with the average number of service lookup hops in the tunneled hierarchical P2P model. Finally, a prototype service implementation is presented with the design of content annotation service and application on face detection.
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In this chapter an analysis of the discourses and practices around intellectual property is carried out on the specialist social networking site Ravelry. This site is for knitters, spinners and crocheters1 and has attracted over 600 000 users (in the two and a half years to March 20102), many of whom are very active contributors to the site. Individuals have their own profile areas on the site where they are able to upload photos of the items they are knitting, with details of the yarn they used and the patterns they followed and any modifying for their own purposes. These details are aggregated for other users to find, and linked variously to commercial and non-commercial sites where the patterns or yarn can be found (sometimes for sale, sometimes for free in the case of patterns) both on and off the Ravelry site. Local yarn stores and libraries are also linked (with maps and contact details). Searches allow the user to browse photos of the multiple versions of a pattern that have been knitted by other users, thus allowing for them to see how the pattern knits up in different yarns, sizes, colours and variations/modifications. Sometimes there are hundreds of finished versions of a particular pattern available for viewing. Comments about patterns and yarns are made, alerting people to their pitfalls or joys, there is a ‘favourites’ system which generates searchable popularity metrics in all available categories and so on. Much of the data available about the patterns and yarns has been previously available elsewhere on the net, but the aggregation of the data into one very user-friendly searchable database which draws on user-generated content has proved immensely popular.

Designers are able to upload their patterns to either sell or give away, with a PayPal payment system in operation within the site. They can link to their own websites if they already have an online payment mechanism available there. Advertising is also available on the site, with both commercial retailers and individual designers paying for ads on the site. Ravelry also has very active discussion boards about not only all things associated with yarn, knitting and crocheting, but also about politics, tv shows, special interests and just about anything else imaginable. These boards are surprisingly well populated. By June 2008, a little over a year after the public beta test began, there had been over 5 million posts to the boards.

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