By Fernando Almeida, Maria Teresa Andrade, Nicola Blefari Melazzi, Richard Walker, Heinrich Hussmann, Iakovos S. Venieris

Convergence proposes the enhancement of the web with a unique, content-centric, publish–subscribe carrier version in line with the flexible electronic merchandise (VDI): a standard box for every kind of electronic content material, together with electronic representations of real-world assets. VDIs will serve the desires of the longer term web, supplying a homogeneous strategy for dealing with established info, incorporating defense and privateness mechanisms. CONVERGENCE subsumes the next components of research:

· definition of the VDI as a brand new basic unit of distribution and transaction;

· content-centric networking performance to enrich or substitute IP-address-based routing;

· safeguard and privateness safety mechanisms;

· open-source middleware, together with a group dictionary carrier to allow wealthy semantic searches;

· functions, established lower than real-life conditions.

This ebook indicates how CONVERGENCE permits publishing, looking out and subscribing to any content material. Creators can submit their content material via wrapping it and its descriptions right into a VDI, surroundings rights for different clients to entry this content material, display screen its use, and converse with humans utilizing it; they could even replace or revoke content material formerly released. entry to content material is extra effective, as se's take advantage of VDI metadata for indexing, and the community makes use of the content material identify to make sure clients continually entry the reproduction closest to them. each node within the community is a content material cache; handover is simple; multicast is traditional; peer-to-peer is integrated; time/space-decoupling is feasible. program builders can make the most CONVERGENCE’s middleware and community with no need to lodge to proprietary/ad hoc options for common/supporting performance. Operators can use the community extra successfully, larger controlling info move and comparable sales flows. community layout, operation and administration are simplified through integrating varied capabilities and heading off patches and stopgap solutions.

Whether as a textual content for graduate scholars engaged on the way forward for the web, or a source for practitioners supplying e-commerce or multimedia companies, or scientists defining new applied sciences, CONVERGENCE will make a worthwhile contribution to the long run form of the Internet.

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Andrade et al. Fig. 1 Service model publication VDIs to detect matches and subsequently notify the relevant subscribers of the existence of resources meeting their requirements. The VDI object is thus seen by CONVERGENCE as the vehicle through which the future Internet will provide the support for a whole set of operations inherent to the publication, subscription, access to and transaction of any kind of resources within a publish-subscribe operational paradigm. The CONVERGENCE architecture delivers a comprehensive, distributed and extensible set of open software engines, that collectively provides the necessary functionality to manipulate VDIs, enforcing a publish-subscribe operation and enabling the implementation of a broad range of services on top of it.

In IEEE Multimedia, 27 Nov. 2012. IEEE computer Society Digital Library. 57). N. Blefari Melazzi, L. Chiariglione, ‘‘The potential of Information Centric Networking in two illustrative use scenarios: mobile video delivery and network management in disaster situations’’, invited paper, IEEE Journal MMTC, E-letter special issue on ‘‘Multimedia Services in Information Centric Networks’’. P. Carvalho, M. Andrade, C. Alberti, H. Castro, C. Calistru and P. Cuetos, ‘‘A unified data model and system support for the context-aware access to multimedia content’’, In Proceedings of the Workshop on Multimedia Semantics, pp.

The publish/subscribe service model effectively decouples the application end points in both space and time. This decoupling enables a greater systemic scalability, a more dynamic network topology and a much enlarged and flexible typology of services. e. publishers and subscribers. Publishers advertise their resources (data and service-access-points) on the CONVERGENCE system, by way of publications. Subscribers register, within the system, their interest in specific resources or topics. The system notifies subscribers when resources matching their interests become available.

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