From Freebase to Wikidata
The Great Migration
Thomas Pellissier Tanon,[ex-Google] Denny Vrandečić,[Google] Sebastian Schaffert,[Google] Thomas Steiner,[Google] and Lydia Pintscher[Wikimedia Deutschland]
WWW 2016, April 14, 2016, Montreal, Canada
Introduction
Proprietary + Confidential
Web-based Knowledge Bases
Freebase
Wikidata
Freebase Data Model
Wikidata Data Model
Motivation for the Freebase Shutdown
Migration Challenges—Licensing
Migration Challenges—References
Migration Challenges—Data Quality and Maintenance
Migration Challenges—Data Topic Mappings
Primary Sources Tool—Front-end
Proprietary + Confidential
Primary Sources Tool—Introduction
Primary Sources Tool—Front-end
Primary Sources Tool—Leaderboard
Primary Sources Tool—Other Datasets
Primary Sources Tool—Back-end
Proprietary + Confidential
Implementation
Back-end:
Persistence:
Requirements vs. Reality
Requirements:
Implementation:
Evaluation / Statistics
Proprietary + Confidential
Freebase vs. Wikidata (August 2015)
Freebase:
Wikidata:
Differences:
Raw Data
Usage Data (April 2016)
Data Statistics:
Access Statistics:
Conclusions and Future Work
Proprietary + Confidential
Future Work
Conclusions
Freebase article spatio-temporal distribution
Wikidata article spatio-temporal distribution
Resources