Wikidata:Property proposal/DFG Science Classification

DFG Science Classification

Originally proposed at Wikidata:Property proposal/Authority control

   Done: DFG Science Classification (P10287) (Talk and documentation)

Description	German Research Foundation (DFG) classification of Scientific Disciplines, Research Areas, Review Boards and Subject Areas
Represents	DFG Science Classification (2020-2024) (Q110439023)
Data type	External identifier
Domain	subclass of (P279) branch of science (Q2465832)
Example 1	life sciences (Q864928) → 2
Example 2	medicine (Q11190) → 22 and 205
Example 3	gastroenterology (Q120569) → 205-15
Example 4	engineering (Q11023) → 4
Example 5	mechanical engineering (Q101333) → 41 (named as Mechanical and Industrial Engineering)
Example 6	Mechanics and Constructive Mechanical Engineering → 402
Example 7	mechanics (Q41217) → 402-02
Source	https://www.dfg.de/en/dfg_profile/statutory_bodies/review_boards/subject_areas/index.jsp https://www.dfg.de/download/pdf/dfg_im_profil/gremien/fachkollegien/amtsperiode_2020_2024/fachsystematik_2020-2024_en_grafik.pdf https://www.dfg.de/download/pdf/dfg_im_profil/gremien/fachkollegien/amtsperiode_2020_2024/fachsystematik_2020-2024_de_grafik.pdf https://github.com/tibonto/DFG-Fachsystematik-Ontology https://github.com/tibonto/DFG-Fachsystematik-Ontology/blob/main/csv/Fachsystematik_2020-2024.csv
Planned use	make MnM catalog for matching
Number of IDs in source	211+50+14+4=279
Expected completeness	eventually complete (Q21873974)
Formatter URL	https://www.dfg.de/dfg_profil/gremien/fachkollegien/liste/index.jsp?id=$1 (not very good, see below)
See also	ANZSRC 2020 FoR ID (P8529), ANZSRC 2008 FoR ID (P5922), All-Science Journal Classification Codes (P10203), Wikidata:Property proposal/UKÄ standard classification of Swedish science topics 2016
Applicable "stated in"-value	DFG Science Classification (2020-2024) (Q110439023)
Distinct-values constraint	no

Motivation

The established science classification of Germany. Vladimir Alexiev (talk) 14:20, 6 January 2022 (UTC)

• @AndreCstr: has converted it to an ontology, see https://github.com/tibonto/DFG-Fachsystematik-Ontology.
  • https://github.com/tibonto/DFG-Fachsystematik-Ontology/blob/main/dfgfo.ttl has all 4 levels (as RDF turtle)
  • The list of source links is from there.
• https://joetm.github.io/dfg-fachsystematik/index-en.html (https://github.com/joetm/dfg-fachsystematik) is another semantic representation
  • https://github.com/joetm/dfg-fachsystematik/blob/master/dfg-fachsystematik.ttl in RDF turtle
  • https://github.com/joetm/dfg-fachsystematik/tree/master/scrape in JSON: all levels, separate for en, de
• The CSV has lowest level in first col, and the higher levels to the right (with duplicate values)
• https://tudatalib.ulb.tu-darmstadt.de/handle/tudatalib/2079 is a mapping to DNB subjects
• Examples are taken from en_grafik.pdf
• Neither single-valued nor distinct:
  • Some WD items appear at 2 hierarchy levels (eg medicine (Q11190)) so will be mapped to 2 codes
  • Some codes are a conjunction of 2 things, so might be mapped to 2 WD items
• formatterURL, i.e. individual per-discipline pages
  • The current one will need a redirector tool (eg 402-02 -> id=402#402-02), and lists boards/colleges (so maybe not very appropriate)
  • Various DE libraries have searches by DFG Fachsystematik, so we can list them as third-party formatters
  • Do you know any better?

Discussion

•  Support The ontology version uses URI's like https://github.com/tibonto/dfgfo/101-01 but they don't resolve (404 response). ArthurPSmith (talk) 17:43, 6 January 2022 (UTC)
•  Support RShigapov (talk) 11:46, 20 January 2022 (UTC)
•  Support —MasterRus21thCentury (talk) 04:54, 21 January 2022 (UTC)
•  Support, an important property for Wikidata.--Arbnos (talk) 23:53, 21 January 2022 (UTC)
• @Vladimir Alexiev, ArthurPSmith, RShigapov, MasterRus21thCentury, Arbnos:  Done as DFG Science Classification (P10287). I used the formatter URL given in the proposal, but it may need to be changed, since some of the links will not resolve. UWashPrincipalCataloger (talk) 04:01, 24 January 2022 (UTC)

Thanks @UWashPrincipalCataloger: but I think that "conjunctive" (or precoordinated) items like mechanics and constructive mechanical engineering (Q110660336) don't belong in WD (the two conjuncts do).

Also, a description like "subject area in the DFG Classification of Subject Areas and Review Boards (2020-2024)" is not quite ok: Items should be defined on their own worth, not in reference to some external dataset.

IMHO It's ok if some of the top DFG categories stay unmapped, or are mapped to 2 WD items --Vladimir Alexiev (talk) 05:40, 26 January 2022 (UTC)

• Example 6 in the proposal had a classification number but no item. I created the item for this example. I didn't think it was my place to delete the example, and it is a category in this classification, which I thought was valid for Wikidata. UWashPrincipalCataloger (talk) 05:44, 26 January 2022 (UTC)