SEMANTIC WEB1Abhijit C. Manepatil. 2Prof. P. R. Barapatre Student, 1st year M.E.( Computer Engineering) Seminar GuideE-mail: abhimanepatil@gmail.com SKN Sinhgad Institute Of Technology, Kusgaon (bk.), Lonavala.

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• ABSTRACT :

The Semantic Web is an evolving development of the World Wide Web in which the meaning (semantics) of information and services on the web is defined, making it possible for the web to "understand" and satisfy the requests of people and machines to use the web content. At its core, the semantic web comprises a set of design principle. collaborative working groups, and a variety of enabling technologies. Some elements of the semantic web are expressed as prospective future possibilities that are yet to be implemented or realized. Other elements of the semantic web are expressed in formal specifications. Some of these include Resource Description Framework (RDF), a variety of data interchange formats (e.g. RDF/XML) and notations such as RDF Schema (RDFS) and the Web Ontology Language (OWL), all of which are intended to provide a formal description of concepts, terms, and relationships within a given knowledge.

• OBJECTIVE : The World Wide Web (WWW) has changed the way people communicate with each other, information is disseminated and retrieved, and business is conducted. The term Semantic Web comprises techniques which promise to dramatically improve the current WWW and its use. The Semantic Web will only be possible once further levels of interoperability have been established. Standards must be defined not only for the syntactic form of documents, but also for their semantic content. Notable among recent W3C standardization efforts are XML/XML schema and RDF/RDF schema, which facilitate semantic interoperability.

• BACKGROUND :

The key components of semantic web technology are as follows: 1) OWL: The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies endorsed by the World Wide Web Consortium. They are characterized by formal semantics and RDF/XML-based serializations for the Semantic Web.2) Resource Description Format: The Resource Description Framework (RDF) is a family of World Wide Web Consortium (W3C) specifications originally designed as a metadata data model. It has come to be used as a general method for conceptual description or modeling of information that is implemented in web resources, using a variety of syntax formats.3) RDF Schema: RDF Schema is an extensible knowledge representation language, providing basic elements for the description of ontologies, otherwise called Resource Description Framework (RDF) vocabularies, intended to structure RDF resources.4) Uniform Resource Identifier : A URI is simply a Web identifier like the strings starting with "http:" or "ftp:" that you often find on the World Wide Web. Anyone can create a URI, and the ownership of them is clearly delegated, so they form an ideal base technology with which to build a global Web on top . In fact, the World Wide Web is such a thing anything that has a URI is considered to be "on the Web".

• A LAYERED APPROACH TO THE SEMANTIC WEB :

• ISSUES AND CHALLENGES : It’s Too Complex The RDF model is felt to be complex The RDF representation in XML looks complex Industry Isn’t Interested

The Semantic Web won’t take off unless the IT sector develops tools Its Too ResearchyThe Semantic Web is an idea for the AI research community and not for mainstream use Consensus Not Yet Reached On Architectural ApproachThere is still debate on RDF, patent issues, etc.

• CONCLUSION :

Semantic Web is the future of Internet. Semantic web is expected to re write the internet as we know it and change the way we search information on net. The searches will become personalized and the results will be more accurate and more relevant. The use of Resource Description Format will help in the advent of this technology. Although there are many challenges that have to be overcome in order to do so but the possibility of this technology overcoming and replacing the traditional web model seem bright currently. The traditional model of internet does not allow for intelligent searches and takes a lot of time because of the irrelevant searches being displayed too. Semantic Web can overcome all these problems to provide a better and rich user experience to consumers all over the globe. The next generation of web will better connect people and will further advent the information technology revolution.

• REFERENCES:• IEEE Internet Computing The Semantic Web: The Roles of XML and RDF Stefan Decker And Sergey Melnik Stanford University.• IEEE INTELLIGENT SYSTEMS Ontology Languages for the Semantic Web Asunción Gómez-Pérez and Oscar Corcho, Universidad Politécnica de Madrid.• IEEE Published by the IEEE Computer Society: Semantics Scales Up Beyond Search in Web 3.0• T. Berners-Lee. Semantic Web Road Map