This document provides an overview of the semantic web, including its objectives to allow machines to better understand web content, a layered approach using standards like RDF, RDFS and OWL, and challenges in developing this vision such as complexity, lack of industry adoption, and remaining technical issues. It concludes that the semantic web could fundamentally change internet searches and knowledge sharing by enabling more personalized and relevant results through conceptual modeling of web resources.

1. SEMANTIC WEB
1AbhijitC. Manepatil. 2Prof. P. R. Barapatre
Student, 1st year M.E.( Computer Engineering) Seminar Guide
E-mail: abhimanepatil@gmail.com
SKN Sinhgad Institute Of Technology, Kusgaon (bk.), Lonavala.
• ABSTRACT : • A LAYERED APPROACH TO THE
The Semantic Web is an evolving development of the World Wide
SEMANTIC WEB :
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.
• ISSUES AND CHALLENGES :
• OBJECTIVE : It’s Too Complex
The RDF model is felt to be complex
The World Wide Web (WWW) has changed the way people The RDF representation in XML looks complex
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communicate with each other, information is disseminated and
retrieved, and business is conducted. The term Semantic Web
Industry Isn’t Interested
The Semantic Web won’t take off unless the IT sector develops tools
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comprises techniques which promise to dramatically improve the
current WWW and its use. The Semantic Web will only be possible
Its Too Researchy
The Semantic Web is an idea for the AI research community and not
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once further levels of interoperability have been established. Standards
must be defined not only for the syntactic form of documents, but also
for mainstream use
Consensus Not Yet Reached On Architectural Approach
for their semantic content. Notable among recent W3C standardization
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efforts are XML/XML schema and RDF/RDF schema, which facilitate
There is still debate on RDF, patent issues, etc.
semantic interoperability.
……………………………………………………………………………………………………………… • CONCLUSION :
• BACKGROUND :
……………………………………………………………………………………………………………… Semantic Web is the future of Internet. Semantic
web is expected to re write the internet as we know it and change the
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The key components of semantic web technology are as follows:
1) OWL: The Web Ontology Language (OWL) is a family of
way we search information on net. The searches will become
personalized and the results will be more accurate and more relevant.
knowledge representation languages for authoring ontologies endorsed
....gftfgf of Resource Description Format will help in the advent of this
by the World Wide Web Consortium. They are characterized by formal
The use
technology. Although there are many challenges that have to be
semantics and RDF/XML-based serializations for the Semantic Web.
overcome in order to do so but the possibility of this technology
2) Resource Description Format: The Resource Description
overcoming and replacing the traditional web model seem bright
Framework (RDF) is a family of World Wide Web Consortium (W3C)
currently.
specifications originally designed as a metadata data model. It has
The traditional model of internet does not allow for
come to be used as a general method for conceptual description or
intelligent searches and takes a lot of time because of the irrelevant
modeling of information that is implemented in web resources, using a
searches being displayed too. Semantic Web can overcome all these
variety of syntax formats.
problems to provide a better and rich user experience to consumers all
3) RDF Schema: RDF Schema is an extensible knowledge
over the globe. The next generation of web will better connect people
representation language, providing basic elements for the description
and will further advent the information technology revolution
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 • REFERENCES:
like the strings starting with "http:" or "ftp:" that you often find on the • IEEE Internet Computing The Semantic Web: The Roles of XML
World Wide Web. Anyone can create a URI, and the ownership of and RDF Stefan Decker And Sergey Melnik Stanford University.
them is clearly delegated, so they form an ideal base technology with • IEEE INTELLIGENT SYSTEMS Ontology Languages for the
which to build a global Web on top . In fact, the World Wide Web is Semantic Web Asunción Gómez-Pérez and Oscar Corcho,
such a thing anything that has a URI is considered to be "on the Web". 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