[Story] Create real URLs for wikidata ontology
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	Smalyshev
	Apr 24 2015, 10:46 PM

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Right now we have URL http://wikidata.org/entity/Q1 resolve to real data page. However, a lot of other URLs mentioned in RDF dumps do not correspond to anything. Specifically:

http://wikiba.se/ontology - ontology base
http://www.wikidata.org/prop/ - all property predicates
http://www.wikidata.org/entity/statement - all statements
http://www.wikidata.org/value/ - prefix for RDF values
http://www.wikidata.org/reference/ - prefix for RDF preferences

We should devise and implement URL scheme in which, at least on wikidata, all these URLs would exist and lead to a sensible place.

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Related Changes in Gerrit:

	Subject	Author	Repo	Branch	Lines +/-
	Create real URIs for wikidata RDF URIs	2096	operations/puppet	production	+28 -1

Customize query in gerrit

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Status	Assigned	Task
Open	None	T88728 Improve Wikimedia dumping infrastructure
Open	None	T88991 improve Wikidata dumps [tracking]
Open	None	T46581 Partial Wikidata dumps
Resolved	Smalyshev	T46580 Script for creating RDF dumps of all entities
Duplicate	None	T211495 Dump(s) of Wikidata classes
Duplicate	None	T211497 Dump(s) of Wikidata instances of Q5
Open	None	T162351 Create a "page prop" RDF dump for Wikidata entities ("pagePropertiesRdf")
Open	None	T98320 [Task] Create dump of entity redirects (JSON or n-triples)
Invalid	None	T285307 Create randomly split partial entity dumps
Resolved	Lydia_Pintscher	T44063 [Epic] Provide a plain linked data interface for accessing entities
Resolved	hoo	T101837 [Story] switch default rdf format to full (include statements)
Open	None	T50143 Implement complete RDF mapping for entities (tracking)
Resolved	Smalyshev	T99820 [Task] Add reference to ontology.owl to the RDF output
Resolved	Smalyshev	T97195 [Story] Create real URLs for wikidata ontology
Resolved	Smalyshev	T97522 update Wikibase ontology schema (owl)
Resolved	Lydia_Pintscher	T93207 Decide which domain to use for the wikibase ontology URI
Resolved	daniel	T94747 Make decision on RDF ontology prefix
Resolved	Smalyshev	T112042 [Story] http://wikiba.se/ontology should lead to documentation for the ontology

Event Timeline

Smalyshev created this task.Apr 24 2015, 10:46 PM

Smalyshev raised the priority of this task from to Needs Triage.

Smalyshev updated the task description. (Show Details)

Smalyshev added a project: Wikidata.

Smalyshev added subscribers: Smalyshev, daniel, • Manybubbles and 3 others.

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptApr 24 2015, 10:46 PM

Lydia_Pintscher added a subtask: T93207: Decide which domain to use for the wikibase ontology URI.Apr 29 2015, 12:49 PM

Lydia_Pintscher triaged this task as Medium priority.Apr 29 2015, 1:07 PM

Lydia_Pintscher set Security to None.

Lydia_Pintscher moved this task from incoming to ready to go on the Wikidata board.

daniel closed subtask T93207: Decide which domain to use for the wikibase ontology URI as Resolved.May 11 2015, 2:44 PM

The ontology base URI is now decided: http://wikiba.se/ontology# (resp for now http://wikiba.se/ontology-beta#). That should redirect (303?) to the OWL document URL, http://wikiba.se/schema/ontology-0.0.1.owl

The base URI for entities on wikidata.org should remain inside the wikidata.org domain. The suggested paths seem fine:
http://www.wikidata.org/prop/ - all property predicates
http://www.wikidata.org/entity/statement - all statements
http://www.wikidata.org/value/ - prefix for RDF values
http://www.wikidata.org/reference/ - prefix for RDF preferences

Though I'm not quite sure whether we should be using http or https here. That disctinction is a bit silly for URIs. is there some Best Practice for dealing with this?

Sounds good.

I am not aware of any best practice re "http vs. https" but all URIs I know are using http as a protocol.

Should it be linked with docs/ontology.owl in Wikibase repo?

As for https, I don't see big need to do https - it's less cacheable and it's not something that contains sensitive non-public information.

@Smalyshev http://wikiba.se/schema/ontology-0.0.1.owl should be docs/ontology.owl from the repo. I don't know what you mean by "linked to" though.

I suppose the file should be copied to https://github.com/wmde/Wikiba.se, an the appropriate redirect/rewrite should be configured there, too. I have filed an issue ticket there: https://github.com/wmde/Wikiba.se/issues/32

By linked I meant some automatic process that makes that happen between repos, but we also can do it manually for now.

thiemowmde mentioned this in T102717: https switch changed wdata prefix to https:.Jun 23 2015, 2:01 PM

Smalyshev added a parent task: T99820: [Task] Add reference to ontology.owl to the RDF output.Jul 10 2015, 12:37 AM

Smalyshev added a parent task: T50143: Implement complete RDF mapping for entities (tracking).

Smalyshev closed subtask T97522: update Wikibase ontology schema (owl) as Resolved.Aug 10 2015, 3:56 AM

• Jonas renamed this task from Create real URLs for wikidata ontology to [Story] Create real URLs for wikidata ontology.Aug 15 2015, 12:35 PM

Smalyshev updated the task description. (Show Details)Sep 9 2015, 7:37 AM

Change 230483 had a related patch set uploaded (by Smalyshev):
Create real URIs for wikidata RDF URIs

https://gerrit.wikimedia.org/r/230483

gerritbot added a project: Patch-For-Review.Sep 9 2015, 7:38 AM

Ricordisamoa subscribed.Sep 9 2015, 7:39 AM

wikiba.se part probably needs to be split out since it is a different site from wikidata.org with different codebase (and static one at that which also complicates things).

Another proposal from @mkroetzsch:

I don't know what the implementation status is for generated URIs like http://www.wikidata.org/value/8000228965cf554cf1baf641980f657d, since we cannot resolve them so easily. One way would be to redirect to a suitable DESCRIBE query result on the SPARQL endpoint. But this may require some more implementation work first. I think our main goal should be to have proper RDF replies for items and (all URI variants of) properties.

Smalyshev claimed this task.Sep 10 2015, 5:00 AM

Smalyshev added a subtask: T112042: [Story] http://wikiba.se/ontology should lead to documentation for the ontology.Sep 10 2015, 5:03 AM

JanZerebecki merged a task: T109937: Create the redirections of properties to their wiki pages.Sep 10 2015, 7:14 PM

JanZerebecki added a subscriber: Karima.

Change 230483 merged by RobH:
Create real URIs for wikidata RDF URIs

https://gerrit.wikimedia.org/r/230483

RobH mentioned this in rOPUPca32030b32b5: Create real URIs for wikidata RDF URIs.Sep 22 2015, 4:43 PM

Smalyshev closed this task as Resolved.Sep 22 2015, 4:52 PM

Smalyshev removed a subtask: T112042: [Story] http://wikiba.se/ontology should lead to documentation for the ontology.

JanZerebecki added a project: Wikidata-Sprint-2015-09-15.Sep 22 2015, 6:36 PM

JanZerebecki moved this task from Backlog to Done on the Wikidata-Sprint-2015-09-15 board.