From Freebase to Wikidata: The Great Migration
Venue
World Wide Web Conference, ACM (2016)
Publication Year
2016
Authors
Thomas Pellissier Tanon, Denny Vrandečić, Sebastian Schaffert, Thomas Steiner, Lydia Pintscher
BibTeX
Abstract
Collaborative knowledge bases that make their data freely available in a
machine-readable form are central for the data strategy of many projects and
organizations. The two major collaborative knowledge bases are Wikimedia’s Wikidata
and Google’s Freebase. Due to the success of Wikidata, Google decided in 2014 to
offer the content of Freebase to the Wikidata community. In this paper, we report
on the ongoing transfer efforts and data mapping challenges, and provide an
analysis of the effort so far. We describe the Primary Sources Tool, which aims to
facilitate this and future data migrations. Throughout the migration, we have
gained deep insights into both Wikidata and Freebase, and share and discuss
detailed statistics on both knowledge bases.
