OpenCitations#OpenCitations Corpus

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OpenCitations publishes the following datasets which encompass bibliographic data, citation metadata, and in-text reference data. The datasets can be accessed via SPARQL, a REST API, as dumps on Figshare, as individual bibliographic entities, or using OSCAR (OpenCitations RDF Search Application) or Lucinda (The OpenCitations RDF Resource Browser). {{cite web|author=Chiara Di Giambattista|url=https://opencitations.hypotheses.org/1535|website=opencitations.hypothesis.org|title=OpenCitations Access Tokens: how they work and why they are important|date=2022-09-02|access-date=2022-11-05}}

The OpenCitations Corpus (OCC) is an open repository of scholarly citation data. The repository is released under the CC0 public domain to ensure that the scholarly citation data is open to all.{{cite journal |first1=Silvio |last1=Peroni |first2=David |last2=Shotton |first3=Fabio |last3=Vitali |year=2017 |title=One year of the OpenCitations Corpus: Releasing RDF-based scholarly citation data into the Public Domain |journal=Proceedings of the 16th International Semantic Web Conference (ISWC 2017) |volume=184 |issue=192 |doi=10.1007/978-3-319-68204-4_19 |url=https://essepuntato.it/papers/oc-iswc2017.html#__RefNumPara__112759_1209124841|access-date=2019-05-28|url-access=subscription }}

As of March 19, 2022, the OCC has ingested the references from 326,743 citing bibliographic resources and contains information about 13,964,148 citation links to 7,565,367 cited resources.

The OpenCitations Indexes are collections of citations, which treat citations as first-class data objects that include citation metadata, as well as identifiers to the citing and cited works. {{citation |title=Citations as First-Class Data Entities: Introduction |url=https://opencitations.wordpress.com/2018/02/19/citations-as-first-class-data-entities-introduction/ |author=David Shotton|access-date=2022-11-05}} For example, COCI is the OpenCitations Index of Crossref open DOI-to-DOI citations. A 2021 comparison with other citations tools found that COCI was the smallest in coverage,{{cite journal |last1=Martín-Martín |first1=Alberto |last2=Thelwall |first2=Mike |last3=Orduna-Malea |first3=Enrique |last4=Delgado López-Cózar |first4=Emilio |title=Google Scholar, Microsoft Academic, Scopus, Dimensions, Web of Science, and OpenCitations’ COCI: a multidisciplinary comparison of coverage via citations |journal=Scientometrics |date=January 2021 |volume=126 |issue=1 |pages=871–906 |doi=10.1007/s11192-020-03690-4|doi-access=free |hdl=10251/192850 |hdl-access=free }} and a 2020 study found that 54% of the citation links in Web of Science were also in COCI.{{cite journal |last1=Chudlarský |first1=Tomáš |last2=Dvořák |first2=Jan |title=Can Crossref Citations Replace Web of Science for Research Evaluation? The Share of Open Citations |journal=Journal of Data and Information Science |date=1 November 2020 |volume=5 |issue=4 |pages=35–42 |doi=10.2478/jdis-2020-0037|doi-access=free |hdl=10467/90574 |hdl-access=free }}

The Open Biomedical Citations in Context Corpus (CCC) is a database of citations providing in-text references,{{cite web|url=https://wellcome.org/grant-funding/people-and-projects/grants-awarded/open-biomedical-citations-context-corpus|title=Open Biomedical Citations in Context Corpus|website=wellcome.org|access-date=2022-11-05}} extending OpenCitations records with in-text reference pointer information.

• Initiative for Open Citations

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• {{official website|http://opencitations.net}}
• {{cite web |url= https://tagteam.harvard.edu/hubs/oatp/tag/oa.occ |title=(OpenCitations Corpus) |work=Open Access Tracking Project |publisher=Harvard University |oclc= 1040261573 }}

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Category:Open access (publishing)

Category:Open science

Category:Projects established in 2010

Category:Citation indices

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