Wikidata talk:WikiProject 20th Century Press Archives/Data structure
Latest comment: 4 years ago by Jneubert in topic Integration of 20th Century Press Archives (Q36948990)'s country/subject archives metadata
"Wirkungsbereich" / field of activity for persons
edit- field of work (P101) does not match well, because it aims at academic subjects (specialization)
- work location (P937) - ok with country? Used in https://www.wikidata.org/wiki/Wikidata:WikiProject_European_Colonialism#Humans
Connect families with their members
editHow are family (Q8436) connected with the human (Q5) belonging to the family?
- Most generic part of (P361)/has part(s) (P527)
- member of (P463), subproperty of affiliation (P1416)
- family (P53), subproperty of member of (P463)
- others?
Jneubert (talk) 17:00, 7 May 2019 (UTC)
- relative (P1038) would be a misfit - not a relation between persons. Jneubert (talk) 14:53, 8 July 2019 (UTC)
- No specific relation to its members comes up with Sqid for family (Q8436).
- Query reveals that has part(s) (P527) had been used 1878 times to link from families to persons, everything else less than 50 times. Jneubert (talk) 15:01, 30 July 2019 (UTC)
Conclusion: For now, use family (P53), and has part(s) (P527) for the inverse relation. Jneubert (talk) 15:03, 8 July 2019 (UTC)
Integration of 20th Century Press Archives (Q36948990)'s country/subject archives metadata
editcopy from Project chat archive 6/2020
A draft for the integration of the large archives' metadata (> 280.000 articles in 9000 digital folders) into Wikidata is outlined here, linking to details of the proposed data structure. Feedback is very welcome - cheers, Jneubert (talk) 09:24, 2 June 2020 (UTC)
- Is Germany : Individual diseases and their control (Q91257808) meant to be a topical item or just some group of files in said archive? Depending on the approach, the use of "location" and "has part" seems a bit odd. --- Jura 09:39, 2 June 2020 (UTC)
- It is meant not as a topical item ("real world object"), but represents the folder for the clippings (= digitized files) collected under that designation. These folders are sometimes rather artificial and may contain material about different items (e.g., 1918-1920 flu pandemic (Q178275), cholera (Q12090) and other diseases). Jneubert (talk) 10:03, 2 June 2020 (UTC)
- For Q91257808, wouldn't "main subject" be more appropriate for statements like "location = German Reich" and "has part = 1918-1920 flu pandemic". --- Jura 09:22, 4 June 2020 (UTC)
- Well, "location" is not a perfect fit here. It would be great to have a property like Dublin Core's dcterms:spatial - however, I was not able not find anything similar among Wikidata's properties. I would have used country (P17), if not some of the "countries" were cities (like Hamburg), regions (like Northern Europe, or the world) or groups of countries (like "Russion peripheral countries"). In my eyes, main subject (P921) would be under-specific here - due to the structure of the archive, each instance of PM20 country/subject folder (Q91257459) is defined by exactly one "country" and one PM20 subject category (Q92707903). In the future, this structure should be supported by a ShEX schema and according validation. Having a mix of different geographical and topical items in "main subject" would make that much more difficult.
- The use of "has part" is different. In the folder, clippings about dozens of different diseases have been collected. The subject "cholera", for example, applies only to a sequence of 7 documents, whereas the other 604 documents in the folder have no informationj about cholera. So this is really a subdivision, not a "primary topic" of the whole folder. You are right that the disease itself (cholera) is not a part of this folder. I suppose the formally correct thing would be to create an item for each subsection, e.g. "Germany : Individual diseases and their control - cholera". But I think that would be overkill.
- The downside of the "has part" shortcut however is that the inverse relation is not true (cholera is not "part of" that PM20 folder). I can imagine that could mess up completely unrelated queries about diseases, which rely on the inverse relation. So perhaps using "has part" is not such a good idea.
- Is there any property for "subtopic"? Could it make sense to propose one? Jneubert (talk) 17:35, 4 June 2020 (UTC)
- For now, a solution seems to be:
- subject link goes to main subject (P921)
- "country" link goes to facet of (P1269)
- use of has part(s) (P527) for subtopics is postponed (new property to propose?)
- Example item Germany : Individual diseases and their control (Q91257808) changed accordingly --Jneubert (talk) 07:39, 14 June 2020 (UTC)
Industry sector for companies
edit- list of sectors
- in database: klassifikator WHERE klass_code='SK' and klass_not like 'SEC%' ORDER BY klass_not
- properties