[Wikidata-bugs] [Maniphest] [Updated] T244341: Wikibase RDF dump: stop using blank nodes for encoding SomeValue and OWL constraints

[Multichill]

Multichill added a project: Community-consensus-needed.

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  https://phabricator.wikimedia.org/T244341

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To: Multichill
Cc: Pfps, Mmarx, Dipsacus_fullonum, Luitzen, VladimirAlexiev, Lea_Lacroix_WMDE, 
Jheald, Daniel_Mietchen, mkroetzsch, Denny, Lucas_Werkmeister_WMDE, Aklapper, 
dcausse, CBogen, darthmon_wmde, Viztor, 94rain, Nandana, Lahi, Gq86, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, 
Scott_WUaS, Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, Snowolf, aude, 
Tobias1984, Manybubbles, Shizhao, Mbch331, Rxy
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[Wikidata-bugs] [Maniphest] [Updated] T244341: Wikibase RDF dump: stop using blank nodes for encoding SomeValue and OWL constraints

[Gehel]

Gehel added a project: Discovery-Search (Current work).

TASK DETAIL
  https://phabricator.wikimedia.org/T244341

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To: Gehel
Cc: Luitzen, VladimirAlexiev, Lea_Lacroix_WMDE, Jheald, Daniel_Mietchen, 
mkroetzsch, Denny, Lucas_Werkmeister_WMDE, Aklapper, dcausse, CBogen, 
darthmon_wmde, Nandana, Lahi, Gq86, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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[Wikidata-bugs] [Maniphest] [Updated] T244341: Wikibase RDF dump: stop using blank nodes for encoding SomeValue and OWL constraints

[Lucas_Werkmeister_WMDE]

Lucas_Werkmeister_WMDE added a comment.


  In T244341#5897785 , 
@dcausse wrote:
  
  > @Jheald about blank nodes usage in T239414 
 we investigated how blank nodes are 
currently used and extracted some numbers here: P9859 
 (count per predicate where a blank 
node is used a an object).
  
  Sorted TSV version: P10531  – the 
most common properties (apart from the `owl:complementOf` construct) are 
described by source  (78k), 
publisher  (58k), date of death 
 (14k), given name 
 (13k), and then the first 
qualifier use, end time  (10k).
  
  I had no luck investigating the qualifiers of those properties (assuming that 
some of the “unknown value” publishers, for instance, may specify the value in 
some qualifier, be it named as  
or something else) – T246238  will 
hopefully shed more light on this.

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To: Lucas_Werkmeister_WMDE
Cc: Lea_Lacroix_WMDE, Jheald, Daniel_Mietchen, mkroetzsch, Denny, 
Lucas_Werkmeister_WMDE, Aklapper, dcausse, darthmon_wmde, Nandana, Lahi, Gq86, 
GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, 
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[Wikidata-bugs] [Maniphest] [Updated] T244341: Wikibase RDF dump: stop using blank nodes for encoding SomeValue and OWL constraints

[dcausse]

dcausse added a comment.


  @Lucas_Werkmeister_WMDE thanks!
  
  Indeed this becomes a bit more challenging as the statement identifier alone 
cannot be used to identify a bnode under a particular statement. I'll continue 
to discuss about this specific issue in T245541 
 to limit noise on this ticket.
  
  @Jheald about blank nodes usage in T239414 
 we investigated how blank nodes are 
currently used and extracted some numbers here: P9859 
 (count per predicate where a blank 
node is used a an object).
  
  Sadly such counts won't be faster using this new proposed approach.

TASK DETAIL
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To: dcausse
Cc: Jheald, Daniel_Mietchen, mkroetzsch, Denny, Lucas_Werkmeister_WMDE, 
Aklapper, dcausse, darthmon_wmde, Nandana, Lahi, Gq86, GoranSMilovanovic, 
QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, 
Xmlizer, jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, Tobias1984, 
Manybubbles, Mbch331
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