Structured Data on Commons
(Redirected from SDoC)
Structured Data on Commons (SDC) is a Wikibase instance for Wikimedia Commons to register structured metadata about media files.
It is a polyglot solution to store metadata:
- captions
- depicts ((P180))
- other media properties
It can be used to query for specific media files. Much metadata (EXIF, depict) is maintained by bots.
Technology
[edit]
Intead of using Wiki text, data is stored in a dedicated triplestore database. This offers more advanced query and search possibilities.
- Wikibase has been implemented in 2012 for Wikidata, and in 2018 for Wikimedia Commons.
- Since 2022 OpenRefine allows to update both instances.
Data instances
[edit]Both are Linked open data database systems that are referring to each other. Wikidata is maintaining the common definition of the properties.
- Wikidata is documenting objects (items);
- SDC is documenting media files (pictures, audio, video).
Media properties
[edit]Structured data makes it possible to perform structured search for media files.
| Property | Description | Structured search list | haswbstatement collage | Item search (all properties) |
|---|---|---|---|---|
| P170 | fotographer | Photo taken by Michiel Hendryckx | P170=Q2602433 | Q2602433 |
| P180 | depicts | Depicts Leuven | P180=Q118958 | Q118958 |
| P1071 | locality of creation | Photo taken in Leuven | P1071=Q118958 | |
| P1344 | participated in | Photo participated in Wiki Loves Monuments 2023 | P1344=Q122920339 | Q122920339 |
See c:Commons:Structured data/Properties table
See also
[edit]Pywikibot scripts: (GitHub)