Commonsense knowledge in Wikidata
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Accompanying slides for the ISWC Wikidata workshop submission 'Commonsense Knowledge in Wikidata'
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Commonsense knowledge in Wikidata
- 1. Commonsense Knowledge in Wikidata Filip Ilievski - Pedro Szekely - Daniel Schwabe submitted to the Wikidata workshop @ ISWC’20
- 2. 1.1 billion edges 84 million nodes (May 2020) ‘sister’ of Wikipedia
- 3. 1.1 billion edges 84 million nodes (May 2020) ‘sister’ of Wikipedia Q: pictures of animals with female grammatical gender in German but male grammatical gender in French
- 4. Common sense the basic ability to perceive, understand, and judge things that are shared by nearly all people and can be reasonably expected of nearly all people without need for debate
- 5. Research questions Q1: Does Wikidata contain relevant commonsense knowledge? Q2: If so, is this complementary to other commonsense knowledge sources?
- 6. Principles of Commonsense Knowledge P1: Concepts, not entities Houses have rooms Versailles Palace has 700 rooms P2: Commonness Container used for storage Noma subclass of aphthous stomatitis P3: General-domain knowledge wheel is part of a car cholesterol has component cell membrane
- 7. Principles of Commonsense Knowledge P1: Concepts, not entities Houses have rooms Versailles Palace has 700 rooms Keep nodes with lowercase alphanumeric characters P2: Commonness Container used for storage Noma subclass of aphthous stomatitis P3: General-domain knowledge wheel is part of a car cholesterol has component cell membrane
- 8. Principles of Commonsense Knowledge P1: Concepts, not entities Houses have rooms Versailles Palace has 700 rooms Keep nodes with lowercase alphanumeric characters P2: Commonness Container used for storage Noma subclass of aphthous stomatitis Frequent words ~ common concepts Usage stats on a large (independent!) corpus P3: General-domain knowledge wheel is part of a car cholesterol has component cell membrane
- 9. After step 1 & 2: 414 relations 421k edges
- 11. Principles of Commonsense Knowledge P1: Concepts, not entities Houses have rooms Versailles Palace has 700 rooms Keep nodes with lowercase alphanumeric characters P2: Commonness Container used for storage Noma subclass of aphthous stomatitis Frequent words ~ common concepts Usage stats on a large (independent!) corpus P3: General-domain knowledge wheel is part of a car cholesterol has component cell membrane Take the top 50 relations (97.4% of all edges) Annotate: domain-specific? Annotate: map to ConceptNet relations
- 12. Domain-specific relations cell component strand orientation molecular function biological process decays to property constraint
- 14. How much common sense is there in WD?
- 15. Has it been growing over time?
- 16. Is WD’s commonsense knowledge novel?
- 17. Discussion 1. Integrating Wikidata-CS with ConceptNet and other sources 2. Generalizing over instance-level knowledge a. birthplace of people -> functional property 3. Missing knowledge types a. typical/expected quantities (chairs have 4 legs, spiders have 8) b. agent goals (compete in order to win) c. symbolism (red - danger)
- 18. Conclusions Common concepts & general relations allow us to distill Wikidata-CS Wikidata contains some commonsense knowledge (0.01%) Very little overlap with existing commonsense KGs Future work: 1. enrich common sense coverage of Wikidata 2. integrate commonsense knowledge across sources
- 19. Thanks!