We may want to apply to P31=Q13442814 the same kind of negative boost that is applied to disambig pages.
|operations/mediawiki-config : master||Add configuration deboosting scientific articles on Wikidata|
|Open||None||T46529 Wikidata search problems (tracking)|
|Open||None||T183243 The fulltext search engine should rank items with human edits higher than bot edits|
|Resolved||Smalyshev||T183510 Deboost Q13442814 (scientific article) in wikidata search|
Asked for feedback here: https://www.wikidata.org/wiki/Wikidata:Project_chat#Deboosting_scientific_article_(Q13442814)
If nobody objects, we can do this in Jan. Exact value of the boost is TBD, I'll do some experiments. Probably less than disambig one, but enough to be efficient.