past, present & future

2007

2007

2014

???

Get me all soccer players, who played as goalkeeper for a club that has a stadium with more than 40.000 seats and who are born in a country with more than 10 million inhabitants

Structure in Wikipedia

bnjmbn

...

Infoboxes

???

How it all started

- 2006 - Sören Auer (busy with his PhD) asking people: “Wikipedia fact tables look like triples, don’t you want to write some extractor?”

- 6 months later: Sören wrote the extractor himself and asked Jens Lehmann to help with writing a paper

- Chris Bizer : “We are extracting people and place information from Wikipedia too – lets join efforts and call it DBpedia.”

- Kingsley Idehen: “I need a showcase for my Virtuoso triple store.”

Infobox Extraction

Wikitext

RDF

Taking a closer look

at heterogeneity…

- DBpedia Mappings wiki

Milestones

- 2008: DBpedia Live- 2009: Scala-Based framework- 2009: Mappings wiki- 2011: Internationalization- 2011: DBpedia Spotlight- 2014: DBpedia Association

Now

DBpedia 2014 (English):4.58 mio. entities and 583 mio. triples

131,2 mio. fact assertions (derived from infoboxes)

168,5 mio. triples representing Wikipedia structure

57,1 mio. links to external datasets

Localized DBpedia version for 125 languages, built from corresponding Wikipedia versions

12 DBpedia language chapters

Now

X

DBpedia has to evolve

- Fusion- Validation- NLP- Enterprize

Fusion

Validation

NLP

- Exploit the text…- Let different NLP tools & approaches

compete for the best quality (in a certain language)

- Need to define the interface (help needed)

Every Enterprise needs its DBpedia

- Represent common sense knowledge (DBpedia and other LOD datasets) as well as the specific enterprise knowledge

- Crystallization points for Linked Data intranets – an addition to SOA facilitating enterprise-wide data linking & integration

- Slicing & Dicing

Other ideas?

EU Projects

http://aligned-project.eu

http://smartdataweb.de/ http://www.freme-project.eu/

http://stack.lod2.eu/

http://geoknow.eu/

The soccer players (for the curious)

Thank you

Big thanks to Sören Auer & Markus Ackermann for slide contributions

Big thanks to Sören Auer & Markus Ackermann for slide contributions