Hello,
Very interesting idea. Just to feed the discussion, here is a very recent
literature survey on data quality in Wikidata:
Cheers,
Ettore Rizza
On Sat, 24 Aug 2019 at 13:55, Uwe Jung <jung.uwe(a)gmail.com> wrote:
Hello,
As the importance of Wikidata increases, so do the demands on the quality
of the data. I would like to put the following proposal up for discussion.
Two basic ideas:
1. Each Wikidata page (item) is scored after each editing. This score
should express different dimensions of data quality in a quickly manageable
way.
2. A property is created via which the item refers to the score value.
Certain qualifiers can be used for a more detailed description (e.g. time
of calculation, algorithm used to calculate the score value, etc.).
The score value can be calculated either within Wikibase after each data
change or "externally" by a bot. For the calculation can be used among
other things: Number of constraints, completeness of references, degree of
completeness in relation to the underlying ontology, etc. There are already
some interesting discussions on the question of data quality which can be
used here ( see
https://www.wikidata.org/wiki/Wikidata:Item_quality;
https://www.wikidata.org/wiki/Wikidata:WikiProject_Data_Quality, etc).
Advantages
- Users get a quick overview of the quality of a page (item).
- SPARQL can be used to query only those items that meet a certain
quality level.
- The idea would probably be relatively easy to implement.
Disadvantage:
- In a way, the data model is abused by generating statements that no
longer describe the item itself, but make statements about the
representation of this item in Wikidata.
- Additional computing power must be provided for the regular
calculation of all changed items.
- Only the quality of pages is referred to. If it is insufficient, the
changes still have to be made manually.
I would now be interested in the following:
1. Is this idea suitable to effectively help solve existing quality
problems?
2. Which quality dimensions should the score value represent?
3. Which quality dimension can be calculated with reasonable effort?
4. How to calculate and represent them?
5. Which is the most suitable way to further discuss and implement
this idea?
Many thanks in advance.
Uwe Jung (UJung <https://www.wikidata.org/wiki/User:UJung>)
www.archivfuehrer-kolonialzeit.de/thesaurus
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