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Network Description Language
Network Description Language (NDL) is a tool to reduce the complexity as networks evolve into the future. NDL enables both humans and machines to have a better grasp on today’s highly evolved networks to ease time consuming and tedious tasks being performed by humans. Through the use of Resource Description Framework (RDF), researchers have been able to create an ontology for complex networks, thus creating a clear view of any network. NDL has proven itself useful in solving many issues as it pertains to the operation of hybrid networks, allowing the creation of network maps and facilitating path finding algorithms. SURFnet6, a Dutch national research and education network A national research and education network (NREN) is a specialised internet service provider dedicated to supporting the needs of the research and education communities within a country. It is usually distinguished by support for a high-speed backb ... was one such network that has utilized NDL for lightpath a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resource Description Framework
The Resource Description Framework (RDF) is a World Wide Web Consortium (W3C) standard originally designed as a data model for metadata. It has come to be used as a general method for description and exchange of graph data. RDF provides a variety of syntax notations and data serialization formats with Turtle (Terse RDF Triple Language) currently being the most widely used notation. RDF is a directed graph composed of triple statements. An RDF graph statement is represented by: 1) a node for the subject, 2) an arc that goes from a subject to an object for the predicate, and 3) a node for the object. Each of the three parts of the statement can be identified by a URI. An object can also be a literal value. This simple, flexible data model has a lot of expressive power to represent complex situations, relationships, and other things of interest, while also being appropriately abstract. RDF was adopted as a W3C recommendation in 1999. The RDF 1.0 specification was published in 2004, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Complex Network
In the context of network theory, a complex network is a graph (network) with non-trivial topological features—features that do not occur in simple networks such as lattices or random graphs but often occur in networks representing real systems. The study of complex networks is a young and active area of scientific research (since 2000) inspired largely by empirical findings of real-world networks such as computer networks, biological networks, technological networks, brain networks, climate networks and social networks. Definition Most social, biological, and technological networks display substantial non-trivial topological features, with patterns of connection between their elements that are neither purely regular nor purely random. Such features include a heavy tail in the degree distribution, a high clustering coefficient, assortativity or disassortativity among vertices, community structure, and hierarchical structure. In the case of directed networks these fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Research And Education Network
A national research and education network (NREN) is a specialised internet service provider dedicated to supporting the needs of the research and education communities within a country. It is usually distinguished by support for a high-speed backbone network, often offering dedicated channels for individual research projects. In recent years NRENs have developed many 'above the net' services. List of NRENs by geographic area East and Southern Africa * UbuntuNet Alliance for Research and Education Networking - the Alliance of NRENs of East and Southern Africa * Eb@le - DRC NREN * EthERNet - Ethiopian NREN * iRENALA - Malagasy NREN * KENET - Kenyan NREN * MAREN - Malawian NREN * MoRENet - Mozambican NREN * RENU - Ugandan NREN * RwEdNet - Rwanda NREN * SomaliREN - Somali NREN SudREN- Sudanese NREN * TENET/ SANReN - South African NREN * TERNET - Tanzanian NREN * Xnet - Namibian NREN * ZAMREN - Zambian NREN North Africa ASREN- Arab States Research and Education Network * TU ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightpath (optical Network)
In optical networking, a lightpath is a path between two nodes in an optical network between which light passes through unmodified. Description When a lightpath can be established between source and destination node endpoints the connection is totally optical and avoids throttling by intermediate electronic conversions and processing. Where a lightpath passes through an Optical add-drop multiplexer (OADM) is known as a ''cut-through lightpath''. Where a lightpath is added or dropped at an OADM, it is known as an ''added/dropped lightpath''. Semi-lightpath Where endpoints are connected by a series of lightpaths with the intermediate nodes only changing the light wavelength at the junctions this may be referred to as a semi-lightpath. See also * Wavelength switched optical network * Multicast lightpaths A multicast session requires a "point-to-multipoint" connection from a source node to multiple destination nodes. The source node is known as the ''root''. The destinat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Theory
Network theory is the study of graphs as a representation of either symmetric relations or asymmetric relations between discrete objects. In computer science and network science, network theory is a part of graph theory: a network can be defined as a graph in which nodes and/or edges have attributes (e.g. names). Network theory has applications in many disciplines including statistical physics, particle physics, computer science, electrical engineering, biology, archaeology, economics, finance, operations research, climatology, ecology, public health, sociology, and neuroscience. Applications of network theory include logistical networks, the World Wide Web, Internet, gene regulatory networks, metabolic networks, social networks, epistemological networks, etc.; see List of network theory topics for more examples. Euler's solution of the Seven Bridges of Königsberg problem is considered to be the first true proof in the theory of networks. Network optimization Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
