What is Wikidata?

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Wikidata_Main_Page
Screenshot of Wikidata Main Page

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Datamodel in Wikidata

Underlying concepts of Wikidata

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relational database

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data structure diagram

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RDF Tripe

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Got to Wikidata and either search for “Mae Jemison” or enter the ID Q34091. In the picture below the statement “Mae C. Jemison - part of - NASA Astronaut Group 12” is an RDF triple. Wikidata_Main_Page
Screenshot of Wikidata Main Page

Introduction to editing

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Front Page of the test instance

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Empty create form of the test instance

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Empty create form of the test instance

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Freshly created Item of Mae Jemison

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Wikidata Jemison

Advanced editing

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Go to pubmed, scroll down to “latest literature” and select an article: latest_articles

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choose_doi

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paste_into_sourcemd

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open quickstatements

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run_editing

Introduction to querying

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Example for the knowledge graph spanned by one Wikidata item % source: http://tinyurl.com/y267yz5q

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Example for the knowledge graph spanned by one Wikidata item and more details about Feynman % click on that node in the above query

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Wikidata Query Service results window

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Extract from the SPARQL editor

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Example of displaying cats in grid format

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Extract from the SPARQL editor

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Extract from the SPARQL editor

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Extract from the SPARQL editor

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Extract from the SPARQL editor

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Bubblechart of books weight by genre

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Map of NFDI Consortia in Germany

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Close up look

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Number of participants in NFDI consortia visualized as bar chart

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relationships between NFDI Consortia in Berlin, Germany

Advanced bulk updating, bots