| hoo added a comment. |
I poked at this a bit on Thursday and Friday and came up with a new idea which will (hopefully) significantly improve the suggestions given.
Currently there are two types of correlations that the suggester considers:
- "Classifying" ones ("instance of" and "subclass of") where we take into account the Property id and the value of Statements.
- Non-classifying correlations, where only the fact that a Statement with a certain Property id exists on an Item is considered.
Right now these two types of correlations are treated equally when suggesting new Properties to use.
During playing around with various options, I figured that the suggestions based on the "classifying" correlations are usually way better than the ones which are based purely on the fact that two Properties are often used together. Due to this, we decided to implement a setting which will allows us to adjust the weight given to the correlation types ins question.
The pull request for this is at https://github.com/Wikidata-lib/PropertySuggester/pull/179 and the change will need a new PropertySuggester 4.0.
Once this has been deployed, we can undo the workarounds for this bug and then see what the right weight for classifying correlations should be. In my tests rather "extreme" values like 0.75 : 0.25 or even 0.8 : 0.2 worked best, so I would suggest trying these for starters.
Note: Suggestions for qualifiers and references, and suggestions for Items without instance of/ subclass of wont be affected by this at all.
Cc: AnjaJentzsch, Ladsgroup, Tobi_WMDE_SW, daniel, mkroetzsch, Stashbot, thiemowmde, JanZerebecki, Lydia_Pintscher, hoo, Sjoerddebruin, Nikki, Aklapper, D3r1ck01, Izno, Wikidata-bugs, aude, Mbch331
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