Professional Documents
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ISSN No:-2456-2165
Abstract:- Semantic Web is an advanced form of the “Web Service” concept was introduced in web
World Wide Web (WWW) to collect, manipulate and technology to amplify the incorporation and interoperability to
interpret the information. It is an intelligent incarnation access the information. Web services become extremely
that provides classification, identical access to the property trending in production in a small span because of its dynamic
and transforms the available information into machine nature but some authorization problems were identified [1]
readable format. To make up the information in to because of the heavy raise in numeral services with the
machine readable format, “Ontology” concept was passage of time. To solve some existing web based problems
introduced by the semantic web technology. Ontology like information filtering, confidentiality, security and
concept is approved by World Wide Web Consortium exaggeration of the context that is available in arrangement
(W3C). It is a collection of interrelated concepts of above the web, a solution “Semantic Web” base on semantic
semantic web that are modeled based on the defined finite concept was designed [2] by Tim Berners Lee. Semantic web
set of conditions in information integration and knowledge is a shared exertion by the W3C and it can be used to
management. Ontology provides solutions to some issues encourage the universal format for data. The basic concept of
like document detection, end-to-end service validation, semantic web is presented in Fig.1. It cancels vagueness from
endorsement, concealment, association, data veracity and available data format which has been constituted on the World
allocation of isolated parts of information problems. It is Wide Web.
said to be a good technique to embody the available data in
machine processable format. Implementing ontology in an
OWL (Ontology Web Language) depends on some
ontology tool support which is said to be complex and time
consuming process. Several research fellows and
development organizations have designed a number of
ontology building environments and algorithms for
different applications. A survey of various ontology
concepts, building environments, ontology designing tools
and the algorithms developed in semantic web technology
is presented in the paper which mainly concentrates on the
real time applications.
I. INTRODUCTION
Fig 1:- Basic concept of Semantic Web
World Wide Web (WWW) is an information space
Semantic web allow the enclosure of the semantic
which provides the user to access and share the information
substance that describe the format in the web pages. Semantic
via internet. It consists of three standard representations
Web has proposed the idea of “Ontology” which is used to
namely Uniform Resource Locator (URL), HyperText
structure the information in to machine processable format [3].
Transfer Protocol (HTTP) and HyperText Mark-up Language
The three basic categories in which the ontology concept is
(HTML). The information that is available over the web are in
subdivided are namely given as Ontology Instance (OI),
various formats like audio, video, text and image are presented
Natural Language Ontology (NLO) and Domain Ontology
in HTML. These formats presented are said to be
(DO). The ontology cloud is presented in Fig.2. Produced
individualistic in defining and forming the denotation of the
linguistic token which are acquired from natural language
context. Generally the information accessible are said to be
proclamation can be related by NLO language, the knowledge
unstructured so it is very tricky to extort and valid the
of a particular domain is represented by using DO and
information. Although some hunt engines and display scrapers
automatic object based web pages are generated by OI.
are developed they are not said to be resourceful and require
extreme physical pre-processing like crafting a schematic
concept, clearing uncooked data, physically classifying the
credentials into catalog and post processing.
Peter.F.Patel et.al.,[9] has presented a concept of The interoperability of sensor input data and semantics
Semantic Web Rule Language (SWRL) that combines the of the same data are considered by Dr.Sunitha Abburu
sublanguages of web ontology language (OWL) and Rule et.al.,[11] through domain ontologies. The proposed
Markup Language (RML). It contains OWL DL and OWL methodology provides an effective technical solution by
Lite, which are the sublanguages of OWL aligned with solving some issues like semantic diverseness in the course of
unary/binary data log, which are the sublanguages of the semantic ontology. Such knowledge provides ability to
RML. This paper implements the number of OWL maxims by exchange and make use of information, capability to build
including described rules. Thus the proposed method enables knowledge through data repossession by increasing a powerful
the rules by combining them with an OWL knowledge base notion with the help of domain ontologies. The satellite data
system. A complete explanation of the OWL model theoretic semantic interoperability has been accessed by implementing a
semantics is presented in this paper in order to make available four phase methodology. This paper presents an evaluation by
a recognized significance for OWL ontologies and the rules connecting and assembling the several ontologies to turn up at
for developing. The rules projected are said to be in the a basic ontology terminology for sensor annotations. Indian
structure of an insinuation among a predecessor (stiff) and the Meteorological satellite observation data were used by this
resultant (chief). Such that every time when the state of affairs author as a distinctive model in this paper to demonstrate the
are individual in the predecessor seize, then the state of affairs proposed concepts of ontology.
specified in the resultant must be seized too.
The available sources are categorized into three
Major elements of the architecture of a data retrieval concepts namely data, information and knowledge. Each of
system is presented by Jose A. Piedra et.al., [10]. With the their formats differs from the other where the structure of
intention of achieving a supple and active image retrieval knowledge is said to be highly complex to design than the
system, this architecture has been designed which incorporates other two. Due its complex structure it is difficult to design the
web equipments with new sample pattern detection systems knowledge management concept for traditional information
functional to satellite images [PGC05] as shown in Fig.4. and hard to achieve a common structure for capturing the
More efficiently the picture, sensor and satellite characteristics particular data from the mixed data sources. The basic
can be imported/exported and updated. The algorithms elements of knowledge resource in the semantic web are
developed and the architectures implemented can also be presented in Fig.5. Ontology is the best semantic technology to
imported/exported and advanced/enhanced from the represent knowledge. It provides uniform data structure for the
organization. To make the proposed system capable of knowledge acquired from mixed data structure.
importing/exporting facilities it has to be furnished with the
development methodologies for data and knowledge exchange. It enables the sharing of knowledge within and out of the
Well known web technologies such as XML [W3C07] are organizations [12] and also supports music applications [13].
used for data switch over, and the web ontology Language is Ontology provides a supportive platform for integration of
used for knowledge switch over. related knowledge sources. The proposed ontology is
implemented by using domain ontology (DO) provides an
effective, efficient and good framework for knowledge
management systems by addressing some major issues of the
existing and proposed systems.