yago: a multilingual knowledge base from wikipedia...

YAGO: a Multilingual Knowledge Basefrom Wikipedia, Wordnet, and Geonames

Thomas Rebele 1, Fabian Suchanek 1, Johannes Hoffart 2,Joanna Biega 2, Erdal Kuzey 2, Gerhard Weikum 2

1 Télécom ParisTech 2 Max Planck Institute for Informatics

2016-10-17

Outline

What is a knowledge base?

YAGO

Applications

Conclusion


I What is a knowledge base?

YAGO

Applications

Conclusion

1/15


Albert Einstein Mileva Maricmarried

Nobel Prize in Physics

won

prizeImage source: https://wikipedia.de

https://wikipedia.de

YAGO


I YAGO

Applications

Conclusion

2/15

YAGO

I >100m facts and >100 relationsI combines Wordnet and WikipediaI merges facts from 10 WikipediasI includes space and time metafactsI manually evaluated

Contributors:

Fabian Suchanek Johannes Hoffart Joanna Biega Gerhard Weikum

Erdal Kuzey FarzanehMahdisoltani

Gjergji Kasneci Thomas Rebele

YAGO - Taxonomy: WordNet and Wikipedia


YAGOI Taxonomy: WordNet and Wikipedia

Multilingual: 10 WikipediasMetafacts: Time and SpaceAccuracy: Manual Evaluation

Applications

Conclusion

3/15


<wikicat_20th-century_physicists>

<wordnet_physicist>

<wordnet_person>

rdfs:subClassOf

rdfs:subClassOf

Wikipedia categories

Wordnet taxonomy

YAGO

Albert Einstein

rdf:type

4/15


Graph Browser � w3id.org/yago/svgbrowser

http://w3id.org/yago/svgbrowser

YAGO - Multilingual: 10 Wikipedias


YAGOTaxonomy: WordNet and Wikipedia

I Multilingual: 10 WikipediasMetafacts: Time and SpaceAccuracy: Manual Evaluation

Applications

Conclusion

5/15


Icons designed byMadebyoliver from Flaticon

· · ·

· · ·

· · ·

http://www.flaticon.com/authors/madebyoliver

http://flaticon.com

6/15


birth_place geburtsort lieu de naissance

(Einstein, Ulm)(Hawking, Oxford)(Euler, Basel)...



GEBURTSORT→ birth_placelieu de naissance→ birth_place...

7/15


YAGO architecture

YAGO - Metafacts: Time and Space


YAGOTaxonomy: WordNet and WikipediaMultilingual: 10 Wikipedias

I Metafacts: Time and SpaceAccuracy: Manual Evaluation

Applications

Conclusion

8/15



<id_tiwmcu_16x_11ovtp>

1903-##-##

since

1919-##-##

until

<http://en.wikipedia.org/wiki/Albert_Einstein>

source

8/15



<id_tiwmcu_16x_11ovtp>

1903-##-##sin

ce

1919-##-##

until

<http://en.wikipedia.org/wiki/Albert_Einstein>

source

YAGO - Accuracy: Manual Evaluation


YAGOTaxonomy: WordNet and WikipediaMultilingual: 10 WikipediasMetafacts: Time and Space

I Accuracy: Manual Evaluation

Applications

Conclusion

9/15


Screenshot of evaluation interface

10/15


Screenshot of evaluation result

I 2 months evaluation, 15 participantsI evaluated 4412 facts of 76 relations (with 60m total facts)I 98% facts of the sample were correctI Wilson center: 95%, interval width: 4.2%

Applications


YAGO

I Applications

Conclusion

11/15

Applications - DBpedia

I research and community projectI knowledge base built from WikipediaI imported YAGO’s taxonomy

12/15

Applications - IBM Watson

IBM Watson

I participated in Jeopardy (TV quizz show)I first place against humansI used YAGO’s type hierarchy

13/15

Applications - AIDA

Analysis of the panama papers � github.com/yago-naga/aida

http://github.com/yago-naga/aida

14/15

Applications - Semantic Culturomics

0

0.05

0.10

0.15

1950 1960 1970 1980

Ratio of womenRatio of women among politicians

Gender imbalance over time � w3id.org/yago/mpi/le-monde

http://w3id.org/yago/mpi/le-monde

Conclusion


YAGO

Applications

I Conclusion

15/15

Conclusion

I combines Wikipedia with WordnetI facts from 10 WikipediasI time and space metafactsI >100 relationsI >100m factsI >95% precision

Future work:I improve release cycleI textual extensionI commonsense knowledgeI intensional knowledgeI completeness

yago: a multilingual knowledge base from wikipedia...

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