A Knowledge Representation Language for Arabic Semantic Web Using Resources Description Framework

The World Wide Web is the greatest repository of information ever assembled by man. The web was not designed to be processed by machines. The web information is meaningless for computer


Introduction
The Web has influenced the way people communicate and collaborate.Publishing information on the Web, make it accessible to anyone with access to the Web, or using the Web as a source of information to derive new knowledge.The amount of information that is accessible on the Web has increased enormously in a short period of time.This increase of information is a desirable evolution, but it has also made the problems with the Web more evident.
Everyone that has used the Web to search for information knows that it is not as easy or as fast as one would like it to be.Because the Web was not designed to be processed by machines, intelligent tools must developed for integration of information that can be extracted from pages including special information that tells a computer how to display a particular piece of text or where to go when a link is clicked.They help the machine to determine what the text means.
Tim Berners-Lee, inventor of the Web has coined the term Semantic Web to describe this approach.Berners-Lee, Hendler and Lassila provide the following definition [1]: The Semantic Web is not a separated Web but an extension of the current one, in which the information is given a welldefined meaning, better enabling computers and people to work in cooperation.For this definition, there are two main features to the Semantic Web:-1.The Semantic Web is not a separated Web, but an extension of the current Web.That means two names to the same thing.The Semantic Web exists in the Web and is a part of the Web at the same time.This makes them inseparable at the Uniform Recourse Identifier (URI) level.

The name Semantic Web comes
from the fact that it represents as a set of semantically and formally interlinked data units there by creating a Semantic Web inside the Web.

Knowledge Representation
The Semantic Web depends on the ability to associate formal meaning with content.The field of knowledge representation provides a good starting point for the design of a Semantic Web language because it offers insight into the design and use of languages that attempt to formalize meaning.) and the attribute ( property ) is ( َ ‫َﻢ‬ ‫َﻈ‬ ‫ﻧ‬ ) and the ( object ) is (

Rdf Language And Model
The Resource Description Framework (RDF) is a graphical language for representing information about resources in the World Wide Web.Information takes the form of a directed graph.[5]Resources are described in terms of properties and property values using RDF statements.Statements are represented as triples, consisting of subject, predicate and object.
RDF offers developers a powerful toolkit for making statements and connecting those statements to derive meaning.RDF offers a different, and in some ways more powerful, framework for data representation than XML or relational databases.
The foundation of RDF is a model for representation named properties and property value.The RDF model draws on well-established principles from various data representation communities.RDF properties may be thought of as attributes of resources and in this sense correspond to traditional attribute-value pairs.RDF properties also represent relationship between resources and RDF model can there for resemble an entityrelationship diagram.[6] The RDF data model is a syntaxneutral way of representing RDF expressions.
The data model representation is used to evaluate equivalence in meaning.Two RDF expressions are equivalent if and only if their data model representation is the same [7].
RDF is a knowledge representation language which allows the representation of an Arabic sentence in web environment to be annotated with semantics.There are many kinds of statements in Arabic language.In this paper we represent a verb statement in RDF and used it the RDF document.

Rdf Triple And Model For Arabic Sentence
The Poem metadata is structured information about poem, such as the poet, poem name, rhyme and prosody that were using in the poem.
Metadata can also include information about a poet that says the poem.Metadata can also include information about verses of the poem, and the date of the poem.
Throughout the search in this paper, it was founding that, there are three principles for poem metadata: 1. Metadata is essential to identify poem.2. Ownership metadata must never be removed.3. Metadata must be written in formats that are understood by all.If all application writes metadata using open standards that are fully consistent and interoperable, then information will be able to move seamlessly between different system and environments.

Rdf Vocabulary Schema
The RDF schema (RDFS) is a general-purpose language for representing information in the web.

This specification describes how to use RDF to describe RDF vocabularies.[9]
A Resource Description Foundation (RDF) vocabulary is a defined set of predicates that can be used in an application.A vocabulary is similar to a schema in that it defines a set of elements that can be used in an application.However, a vocabulary also helps you to define the domain and range of a predicate.RDF vocabularies can describe relationships between vocabulary items from multiple vocabularies that have been developed independently.

The Proposed Rdf Poem Schema
In this paper, the RDF Vocabulary schemas are used to describe these characteristics of the poem and much information about poet.

& Tech. Journal, Vol.28, No.18, 2010 Knowledge Representation Language for Arabic Semantic Web Using Resources Description Framework 5634
PDF created with pdfFactory Pro trial version www.pdffactory.comEng.PDF created with pdfFactory Pro trial version www.pdffactory.comEng.& Tech.

Journal, Vol.28, No.18, 2010 Knowledge Representation Language for Arabic Semantic Web Using Resources Description Framework 5636
PDF created with pdfFactory Pro trial version www.pdffactory.com PDF created with pdfFactory Pro trial version www.pdffactory.comEng.& Tech.

Eng. & Tech. Journal, Vol.28, No.18, 2010 Knowledge Representation Language for Arabic Semantic Web Using Resources Description Framework 5637
PDF created with pdfFactory Pro trial version www.pdffactory.com