Authors : Harshdeep Singh, Robert West, Giovanni Colavizza
Wikipedia’s contents are based on reliable and published sources. To this date, little is known about what sources Wikipedia relies on, in part because extracting citations and identifying cited sources is challenging. To close this gap, we release Wikipedia Citations, a comprehensive dataset of citations extracted from Wikipedia.
A total of 29.3M citations were extracted from 6.1M English Wikipedia articles as of May 2020, and classified as being to books, journal articles or Web contents. We were thus able to extract 4.0M citations to scholarly publications with known identifiers — including DOI, PMC, PMID, and ISBN — and further labeled an extra 261K citations with DOIs from Crossref.
As a result, we find that 6.7% of Wikipedia articles cite at least one journal article with an associated DOI. Scientific articles cited from Wikipedia correspond to 3.5% of all articles with a DOI currently indexed in the Web of Science. We release all our code to allow the community to extend upon our work and update the dataset in the future.