IMSS Tech TalkLinked Data- Moving the Web into Global Data Space

Sathish PV

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WWW as of Today and Web of Lined Data

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Difference?

WWW today-Web of Documents• Is a web of linked documents.• Contents intended to be displayed for human consumption.• Need to write code intensive programs to extract information from the

documents. Web of Linked Data• Link together data from different sources.• Automate and leverage machine capabilities to extract knowledge from data.• Discover new business possibilities.

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Use Case- Automotive- Volkswagen

• Developed contextual site search and browser project using linked data.• Helped make decision quickly and resulted in Increased sales

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Search in Action

Before• Find me all the derivatives priced between x and y that have an engine power

greater than z and come in red.

After• Find me all the derivatives priced between x and y that have an engine power

greater than z and come in red and have a user review of greater that 4 stars

• Find me all the derivatives priced between x and y that have an engine power greater than z and come in red and have a user review of greater that 4 stars. Include results not only from VW, but also other car manufacturers, external car review sites and second hand car dealers.

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Use Case- Google Search

• Enhances search with more structured information using Linked data (Rich Snippets)

Image Preview

People Interested in same artist Price

Information

Who else is attending

Direction

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Use Case- BBC

• BBC combines data from Dbpedia (Wikipedia’s linked data store) and other Open Data Sources

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Use Case- Cyber Security (Sqrrl)

• Built proprietary Linked Data platform for threat hunting.

Architecture Linked Data Model

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Anomaly Detection Example

• Automatic extraction contextual knowledge from raw data • Understanding association between entities and their activities. • Discover anomalies, patterns, and information via data science and machine learning techniques

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LINKED DATA- TECHNICAL BRIEF

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Linked Data- How it works?

• Build a knowledge graph that represents knowledge domain.• Connect digital resources along the knowledge graph.• Link the digital assets.

RDF-Resource Description FrameworkOntologyGraph Data Store

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Linked Data- Technology Stack

Provide Structure and describe ‘things’

Provide vocabulary compatible for WWW

Query RDF Data

Identifier for name of things

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Linked Data Principles

• Use URI (Uniform Resource Identifier) for name of things.• Use HTTP URIs for people can lookup those names.• Provide useful information by using RDF(Resource

Description Framework)• Include links to other URIs to discover more information

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RDF Triplet Representation

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RDF Graph Example

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OWL (Web Ontology Language)

• Definition and classification of concepts and entities, and their relationship between them.

• Relationship with classes (i.e. sameAs)

• <sathish>sameAs<sathish.pv>

• <imssMembers>equivalentClass<happiestmindsEmployees>

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Vocabulary and Ontologies Available Today

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SPARQL - Querying Language for RDF

• RDF data stores can be queried sparql.• SPARQL General Form:

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Enterprise Benefits- Competitive Advantage

• Better innovation management leading to faster time-to-market

• Differentiation from competition• Talent management• Leverage full intellectual capital for improvements of business

and operations

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Additional Information

• http://linkeddata.org/• http://linkeddata.future-internet.eu/index.php/Main_Page• http://linkeddatabook.com/editions/1.0/• http://eprints.soton.ac.uk/271285/1/bizer-heath-berners-lee-ijswis-linked-data.pdf• http://sqrrl.com/product/linked-data-analysis/• https://www.ted.com/talks/tim_berners_lee_on_the_next_web?language=en

Thank you!