Rise of the Semantic Web
• Web 1.0 - Many Web sites consisting of
unstructured, textual content.
• Web 2.0 - Few large Web sites specialized
with specific content types.
• Web 3.0 - Many Web sites containing and
semantically syndicating arbitrary structured content.
• Goal - To represent Web content in a form that is more
• “The Semantic Web is an extension of the current web
in which information is given well-defined meaning,
better enabling computers and people to work in co-
operation.“ - [Berners-Lee et al., 2001] 3
Can we ask these questions ?
Search answers for the following queries in the
current search engines.
- Researchers actively working on semantic
technology related topics in India.
- Apartments near Bengali dominated area in
- Guided tour providers with offices in Jaipur,
Delhi and Bangalore.
• The required information to answer the above
queries is available on the Web, but the current
Web search engines are not yet smart enough to
understand and answer the queries.
• Defines vocabulary for RDF
• Organizes this vocabulary in a typed hierarchy
- Class, subClassOf, type.
- Property, subPropertyOf.
- domain, range .
‘ ... /twain/mark’ ‘ ... /ISBN0001047582’
An ontology formally represents knowledge as a hierarchy of concepts
within a domain, using a shared vocabulary to denote the types,
properties and interrelationships of those concepts.
• OWL – a formal ontology language, and it provides standard labels for
- Classes (owl:class, owl:unionOf etc.)
- Properties (owl:ObjectProperty, owl:DatatypeProperty, rdfs:domain,
-Relations (owl:equivalentClass, rdfs:subClassOf, owl:equivalentProperty
Querying and reasoning using an ontology can help reveal implicit
Inference = Ontologies + Rules .
If <Durgapur> <isPartOf> <WestBengal> and
<WestBengal> <isPartOf> <India>,
Then <Durgapur> <isPartOf> <India>. 10
Scope of Work
• “Which relief organizations can provide how
many tents for the earthquake-affected region
Gujrat in India ? ”
• In the field of disaster management to
structurise the data such that any information
needed during emergency will be easily
• Different structure of websites.
My Proposed Work
• This work emphasises on categorising of the
• The data is organised semi-automatically and
an universal document structure is formed.
• This structure serves globally to all web
developers and accessors to simplify the task of
website development and website navigation.
• Website development is made easier through
RDF and Website navigation is made easier
Form triplet and adding standard ,
domain specific vocabulary
SPARQL ARQ Processor
• How to make global Ontology from a set of
websites within a domain .
• Mapping from Natural Language Query to
• Publishing Linked Data on the World Wide
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