Post on 10-Aug-2020
transcript
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
What is a knowledge base?
I What is a knowledge base?
YAGO
Applications
Conclusion
1/15
What is a knowledge base?
Albert Einstein Mileva Maricmarried
Nobel Prize in Physics
won
prizeImage source: https://wikipedia.de
YAGO
What is a knowledge base?
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
What is a knowledge base?
YAGOI Taxonomy: WordNet and Wikipedia
Multilingual: 10 WikipediasMetafacts: Time and SpaceAccuracy: Manual Evaluation
Applications
Conclusion
3/15
YAGO - Taxonomy: WordNet and Wikipedia
<wikicat_20th-century_physicists>
<wordnet_physicist>
<wordnet_person>
rdfs:subClassOf
rdfs:subClassOf
Wikipedia categories
Wordnet taxonomy
YAGO
Albert Einstein
rdf:type
4/15
YAGO - Taxonomy: WordNet and Wikipedia
Graph Browser � w3id.org/yago/svgbrowser
YAGO - Multilingual: 10 Wikipedias
What is a knowledge base?
YAGOTaxonomy: WordNet and Wikipedia
I Multilingual: 10 WikipediasMetafacts: Time and SpaceAccuracy: Manual Evaluation
Applications
Conclusion
5/15
YAGO - Multilingual: 10 Wikipedias
Icons designed byMadebyoliver from Flaticon
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5/15
YAGO - Multilingual: 10 Wikipedias
Icons designed byMadebyoliver from Flaticon
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6/15
YAGO - Multilingual: 10 Wikipedias
birth_place geburtsort lieu de naissance
(Einstein, Ulm)(Hawking, Oxford)(Euler, Basel)...
(Einstein, Ulm)(Hawking, Oxford)(Euler, Basel)...
(Einstein, Ulm)(Hawking, Oxford)(Euler, Basel)...
GEBURTSORT→ birth_placelieu de naissance→ birth_place...
6/15
YAGO - Multilingual: 10 Wikipedias
birth_place geburtsort lieu de naissance
(Einstein, Ulm)(Hawking, Oxford)(Euler, Basel)...
(Einstein, Ulm)(Hawking, Oxford)(Euler, Basel)...
(Einstein, Ulm)(Hawking, Oxford)(Euler, Basel)...
GEBURTSORT→ birth_placelieu de naissance→ birth_place...
7/15
YAGO - Multilingual: 10 Wikipedias
YAGO architecture
YAGO - Metafacts: Time and Space
What is a knowledge base?
YAGOTaxonomy: WordNet and WikipediaMultilingual: 10 Wikipedias
I Metafacts: Time and SpaceAccuracy: Manual Evaluation
Applications
Conclusion
8/15
YAGO - Metafacts: Time and Space
Albert Einstein Mileva Maricmarried
<id_tiwmcu_16x_11ovtp>
1903-##-##
since
1919-##-##
until
<http://en.wikipedia.org/wiki/Albert_Einstein>
source
8/15
YAGO - Metafacts: Time and Space
Albert Einstein Mileva Maricmarried
<id_tiwmcu_16x_11ovtp>
1903-##-##
since
1919-##-##
until
<http://en.wikipedia.org/wiki/Albert_Einstein>
source
8/15
YAGO - Metafacts: Time and Space
Albert Einstein Mileva Maricmarried
<id_tiwmcu_16x_11ovtp>
1903-##-##sin
ce
1919-##-##
until
<http://en.wikipedia.org/wiki/Albert_Einstein>
source
8/15
YAGO - Metafacts: Time and Space
Albert Einstein Mileva Maricmarried
<id_tiwmcu_16x_11ovtp>
1903-##-##sin
ce
1919-##-##
until
<http://en.wikipedia.org/wiki/Albert_Einstein>
source
YAGO - Accuracy: Manual Evaluation
What is a knowledge base?
YAGOTaxonomy: WordNet and WikipediaMultilingual: 10 WikipediasMetafacts: Time and Space
I Accuracy: Manual Evaluation
Applications
Conclusion
9/15
YAGO - Accuracy: Manual Evaluation
Screenshot of evaluation interface
10/15
YAGO - Accuracy: Manual Evaluation
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
What is a knowledge base?
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
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
Conclusion
What is a knowledge base?
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