# [Open Data and Open Government](https://hackmd.io/s/HkIUxvcNM#)
[<img src="https://www.hdm-stuttgart.de/bi/studierende_dozenten/summerschool2018/isl-f.jpg" style="border:none; box-shadow:none;"/>](https://www.hdm-stuttgart.de/bi/studierende_dozenten/summerschool2018)
Philipp Zumstein, Oliver Rack
Stuttgart, 26.-28.07.2018
<img src="https://mirrors.creativecommons.org/presskit/buttons/88x31/svg/by.svg" style="border:none; box-shadow:none;"/>
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## Part 6: WikiCite
![](https://upload.wikimedia.org/wikipedia/commons/c/c2/WikiCite_wordmark.svg)
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### Introduction & Motivation
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#### What is WikiCite?
* Project around Wikipedia, Wikidata, ...
* Free bibliographic database in Wikidata
* Bibliographic Metadata
* Citation data
* Collaborative Cataloging (Social Cataloging)
* open data (CC0)
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#### Size
**Publications**: 19 million Wikidata entries
**Citations**: 60 million citations in Wikidata
[![](https://i.imgur.com/t0Wo7o8.png)](http://wikicite.org/statistics.html)
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#### Motivation for Wikipedia
Provide evidence for statements, e.g.
![](https://raw.githubusercontent.com/wikicite/bibtag2018/master/img/Wikipedia-Belege.png)
Vision: Provide bibliographic metadata central for all articles and language versions
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#### Motivation for Wikidata
Verify facts in Wikidata with references,\
e.g. highest point in Berlin
[![](https://raw.githubusercontent.com/wikicite/bibtag2018/master/img/fundstelle-wikidata-berlin.jpg)](https://www.wikidata.org/wiki/Q64#P610)
<!--
## Motivation for bibliometric evaluations
Evaluation and visualization of citation data
[![](img/Scholia-Coauthorgraph-Zika-Corpus.jpg)](https://tools.wmflabs.org/scholia/topic/Q202864#Co-author%20graph)
-->
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#### Evaluation and visualization of publication data
[![](https://raw.githubusercontent.com/wikicite/bibtag2018/master/img/scholia-organization-example.png)](https://tools.wmflabs.org/scholia/organization/Q1269766#Page%20production)
Fig. Screenshot of Scholia: https://tools.wmflabs.org/scholia/
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#### Evaluation and visualization of citation data
[![](https://raw.githubusercontent.com/wikicite/bibtag2018/master/img/scholia-citation-graph.png)](https://tools.wmflabs.org/scholia/work/Q24314690)
Fig. Screenshot of Scholia: https://tools.wmflabs.org/scholia/
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### Implementation of WikiCite
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#### Wikidata data model
* [Metadata](https://www.wikidata.org/wiki/Wikidata:WikiProject_Source_MetaData)
* [Books](https://www.wikidata.org/wiki/Wikidata:WikiProject_Books),
* [Periodicals](https://www.wikidata.org/wiki/Wikidata:WikiProject_Periodicals)...
* E.g. [Q30000000](http://www.wikidata.org/entity/Q30000000)
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#### Link to standards data
* Wikidata is itself a universal standard file
* Links to external entries
* DOI, ISBN, PMID, arXiv-ID, ... (Publications)
* GND, VIAF, ORCID, dblp-ID, ... (Authors...)
* ...
* 2824 of 4741 Wikidata properties serve the linking with other databases
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#### Query WikiCite
* Examples:
* Books written together by parents and children: http://tinyurl.com/y7oe8uo8
* Authors whose works became public domain in 2018: http://tinyurl.com/yc8v6l9c
* Most cited female scientists http://tinyurl.com/y9ay3fcy (the older query http://tinyurl.com/y8ell8nw times out)
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### Perspectives for libraries
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#### Reuse of data from Wikidata
* Catalogue enrichment for standards data
* multilingual keyword search
* Article index for Discovery from Wikidata?
* Catalogue enrichments with open citation data?
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#### Ideas for cataloging tools
* Can data collection approaches in Wikidata also be used for cataloguing?
* Aren't batch processing tools in greater demand?
* What about control and auditing tools?
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#### Scope of cataloging
* Catalogue of articles
* Topic for libraries?
* WikiCite shows that it is possible.
* Cataloguing of citations
* Can libraries contribute to open citation data?
* Save citation data in union catalog?
* [Linked Open Citation Database (LOC-DB)](https://locdb.bib.uni-mannheim.de/)
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### Questions / Discussion / Answers? :loudspeaker:
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### Further Reading
* Jakob Voß, Philipp Zumstein (2018): WikiCite als kollaborativer Ansatz für offene Zitationsdaten. https://ub-madoc.bib.uni-mannheim.de/45483/
* Dario Taraborelli Daniel Mietchen Andy Mabbett Andra Waagmeester (2018): Lifting a veil on the sources of free knowledge: A WikiCite workshop. https://doi.org/10.6084/m9.figshare.6863774.v1
* Philipp Zumstein, Konrad Förstner (2017): Tagungsbericht WikiCite 2017. O-Bib, 4(3), 106-112. https://doi.org/10.5282/o-bib/2017H3S106-112
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