Problems associated with current search system : Solutions

While surfing the web , 50 % of results to our queries are irrelevant. Why is it so? Because still the searches are not based on the context of the query but on the keyword. There is still so much to be done in this field.To curb this problem of unwanted results all the search engines are working on their algorithm.
Secondly , users need to know some basics of web before using it.Like, how it works? How queries are processed? So that the user may get the most accurate results.

After researching thoroughly about this problem I came across W3C's rcommendation of SEMANTIC WEB , OWL and RDF . This seems to be a solution.

SEMANTIC WEB   means "WEB with a MEANING".It provides a common platform that allows data to be shared & reused across various applications.It is able to describe things in a way that computers can understand.Semantic web describes things and properties of things.
It can be well understood after learning about RDF and ontology.

RDF(Resource description framework) 

• It is a framework for describing web resources like title, author etc. of the webpage.
• It is designed to be read and understood by computers.
• RDF is not to be displayed to users.
• It is written in XML.
• It is a part of W3C's semantic web activity.
• It is a W3C recommendation.

RDF & Semantic web : As RDF is a part of semantic web activity, it can work wonders together.The vision is where Web info has exact meaning, it can be understood as well as processed by computers.Also computers can integrate info from web.

RDF rules :

1.  RDF uses web identifiers (URI:Uniform Resource Identifiers) to identify resources.
2.  RDF describes resources with properties & property.

ONTOLOGY  On semantic web , vocabularies define the concepts and relationships(terms) used to represent and define an area of concern. Ontology is structural framework for organizing information and is used in artificial intelligence, semantic web , system engineering etc. It is a model for describing the world that consists of a set of types , properties and relationship types.

Example :

                

Here, the labeled  dots represent the 'things' and links between the things are 'relationships'.This is known as a class.The way things are related with each other in a class ,makes it easier to navigate or access the data altogether.Thus, using ontology in web structures will make it easy for the users to access relevant information without any specific knowledge of internet.


PROTEGE  It is a tool used to create classes using ontology web language(OWL).


OWL  is based on ontology where classes are formed and is designed to be interpreted by computers just like RDF or semantic web. It is easy to conclude that OWL is also a W3C recommendation under semantic web vision. It is a language for processing web. Its notable features are -

• W3C recommendation in 2004
• Designed to be interpreted by computers.
• Not to be read by people.
• written in XML.
• 3 sub-languages : 
• OWL Lite
• OWL DL (includes OWL Lite)
• OWL FULL ( includes OWL DL)

OWL is different from RDF :  OWL & RDF are much of the same thing , but OWL is a stronger language with greater machine interpret ability than RDF.

These are not very fast growing technologies , because they were developed by people with academic background in logic and artificial intelligence.But the fact is that these technologies are worth learning.Websites developed after considering these technologies have the possibility to be ranked better.

Friends , please let me know if this article is educative to you.Your feedback will help me bring required topics to you with a better explanation.