CORLDCOMP09 Conference LA, USA

WORLDCOMP'09 - The 2009 World Congress in Computer Science, Computer Engineering, and Applied Computing is organiging International conference on semantic web which will be held in July 2009.

Fore more detail :
//hoip.hostinguk.com/worldcomp09/

IMPORTANT DATE:

February 25, 2009 Submission of papers

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March 25, 2009 Notification of acceptance

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April 25, 2009 Camera-Ready papers
Registration due

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July 13-16, 2009 The WORLDCOMP'09
22 joint conferences

Ontology based semantic search engine Design approach

Design of a semantic search engine based on the Ontology is one of the search engine design approach. this system framework is divided into four modules, and the overall framework is as follows:
1) Ontology processing module: mainly establish the ontology, encapsulate some operations on ontology, and offer interfaces of ontology operation to each part of the system.
2)Website collection module: collect website information in terms of the concrete crawling strategy, and store them in data base for subsequent operations.
3)Pre-processing module: analyze collected websites, mark the ontology of each website, and establish the inverted index on the marked metadata.
4)Query processing module: mainly provide users with interfaces for them to carry out queries and return results.

PageRank Algorithm

PageRank is a link analysis algorithm that assigns a numerical weighting to each element of a hyperlink set of documents, such as the WWW, with the purpose of "measuring" its relative importance within the set. The Algorithm may be applied to any collection of entities with reciprocal quotations and references. The numerical weight that it assigns to any given element E is also called the PageRank of E and denoted by PR(E). The name PageRank is a trademork of Google. This is the basic search algorithm which google use for search.

Conferences and workshps

As Semantic web is new domain of research there are lot of research work and conferences are going on now days. Most of AI and Knowledge base conferences consider semantic web as a topic of research paper presentation and publications. the further detail about the conferences can be gathered from IEEE, ACM and Semantic web conferences.
Latest confereces is: IEEE Conference on AI at Bangladesh. Fore more conference details visit
1. www.allconferences.com
2. www.conferencealert.com

Web Ontology Language (OWL)

The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies, and is endorsed by the World Wide Web Consortium. This family of languages is based on two (largely, but not entirely, compatible) semantics: OWL DL and OWL Lite semantics are based on Description Logics, which have attractive and well understood computational properties, while OWL Full uses a novel semantic model intended to provide compatibility with RDF Schema.
The W3C-endorsed OWL specification includes the definition of three variants of OWL,
with different levels of expressiveness.
1. OWL Lite was originally intended to support those users primarily needing a classification
hierarchy and simple constraints. Development of OWL Lite tools has thus proven almost
as difficult as development of tools for OWL DL, and OWL Lite is not widely used.
2. OWL DL was designed to provide the maximum expressiveness possible while retaining
computational completeness, decidability, and the availability of practical reasoning
algorithms. OWL DL includes all OWL language constructs, but they can be used only under
certain restrictions.
3. OWL Full is based on a different semantics from OWL Lite or OWL DL, and was designed
to preserve some compatibility with RDF Schema.

Protege

Protege is the latest tool in an established line of tools developed at Stanford University for knowledge acquisition. Protege has thousands of users all over the world who use the system for projects ranging from modeling cancer-protocol guidelines to modeling nuclearpower stations. Protege is freely available for download under the Mozilla open-source license. One of the major advantages of the Protege architecture is that the system is constructed in an open, modular fashion. Its component-based architecture enables system builders to add new functionality by creating appropriate plug-in. The Protege Plug-in Library 3 contains contributions from developers all over the world.

XML in Semantic web

Extensible Markup Language (XML) is a subset of SGML (the Standard Generalized Markup Language), i.e. it is totally compatible with SGML. But it is simple and flexible. It’s original aim to tackle the problems of large-scale electronic publishing. However, it is also very important in data exchange on the Web. Despite its name, XML is not a markup language but a set of rules to build markup languages.