IST-2005-027595NeOn-project.org

The Semantic Web is growing…The Semantic Web is growing…

05

1015202530354045

2003 2004

#SW Pages

Lee, J., Goodwin, R. (2004) The Semantic Webscape: a View of the Semantic Web. IBM Research Report.

IST-2005-027595NeOn-project.org

The Semantic Web is growing…The Semantic Web is growing…

http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData

IST-2005-027595NeOn-project.org

Next Generation Semantic Web ApplicationsNext Generation Semantic Web Applications

NG SW Application Semantic WebSmart Features

Able to exploit the SW at large – Dynamically retrieving the relevant semantic resources – Combining several, heterogeneous Ontologies

Need tools and infrastructures to efficiently access the knowledge available on the SW: a Gateway…

IST-2005-027595NeOn-project.org

A Gateway to the Semantic WebA Gateway to the Semantic Web

IST-2005-027595NeOn-project.org

Watson ArchitectureWatson Architecture

Keyword Search

SPARQLQuery

Crawling Parsing(Jena)

Validation/Analysis

Indexing

RepositoryURLs Metadata Indexes

populates populates populates populatesusedextractedretrieved

OntologyExploration

queries queriesqueriesqueries queries

request

WWW

discovered

Collecting Analyzing

Querying

IST-2005-027595NeOn-project.org

Collecting and Analyzing KnowledgeCollecting and Analyzing Knowledge

• Specialized crawlers for ontology repositories and semantic relations. • Watson has collected tens of thousands of semantic documents. • This represents Millions of RDF entities, most of them being instances.

• New sources of knowledge are frequently integrated (FOAF, DBPedia, etc.), so that this number is growing rapidly.

IST-2005-027595NeOn-project.org

Analyzing Semantic ContentAnalyzing Semantic Content

Have to deal with Heterogeneity! Great variety in…

Size Coverage

Richness

Etc.

IST-2005-027595NeOn-project.org

Interfaces, Demos and Applications…Interfaces, Demos and Applications…Interfaces: WUIInterfaces: WUI

Web User Interface: http://watson.kmi.open.ac.uk/WatsonWUI

IST-2005-027595NeOn-project.org

Web services and APIWeb services and API

Watson Server

Semantic repositoryMetadata repository

Indexes

Ontology SearchService

Entity SearchService

Semantic Web Application

Watson API

SOAP

• Allows applications developers to access Watson features, and so the collected knowledge, in a lightweight way.

• But what applications (can) do with it?

IST-2005-027595NeOn-project.org

ApplicationsApplications

PowerAqua: Question Answering

PowerMagpie: Semantic Browsing

Folksonomy Enrichment

Protégé and NeOn Toolkit plugin:Knowledge reuse

Ontology Matching, etc…

IST-2005-027595NeOn-project.org

IST-2005-027595NeOn-project.org

IST-2005-027595NeOn-project.org

Final MessageFinal Message

Watson is an ongoing project to build a Gateway to the Semantic Web

Usable Now!

But lost of directions for improvements

So…

Use it! Show it! Torture it!

Build new applications with it!And…

Send feedbacks! Suggest new features!

Suggest new applications!

IST-2005-027595NeOn-project.org

Thank you!Website: http://watson.kmi.open.ac.uk

Blog: http://watson.kmi.open.ac.uk/blog

E-mail: m.daquin@open.ac.uk

WUI: http://watson.kmi.open.ac.uk/WatsonWUI

API: http://watson.kmi.open.ac.uk/WS_and_API.html

Twitter: watson_swg