co-located wikidata property

[WolfgangFahl]

Is your feature request related to a problem? Please describe.
For Workhops such as Wikidata Workshop 2022 that are colocated with
a conference currently there is no dedicated property to show this "co-located" relation.

As a work-around "part-of" seems to have been used in some cases.

Describe the solution you'd like
Propose a "co-located" property for wikidata and use it.

Describe alternatives you've considered
Stick to the work-around and use and document it.

Additional context
This issues has come up as part of the effort to synchronize CEUR-WS with wikidata

[tholzheim]

I added a few co-located relations by using the part of (P361). But I think there should be a distinct property since part of the series (P179) is a subproperty of part of (P361) and co-located has a different semantic meaning.

Query for workshops that are co-located (part of) a conference

# Workshops that are part of conferences
SELECT ?workshop ?workshopLabel ?conference ?conferenceLabel
WHERE 
{
  ?workshop wdt:P31 wd:Q40444998;
        wdt:P361 ?conference.
  ?conference wdt:P31 wd:Q2020153;
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". } # Helps get the label in your language, if not, then en language
}

Try it!

[fnielsen]

I think a new "co-located with" property would be fine. Would it be most appropriate if it it asymmetric, so there is a link from the workshop to the larger conference? Do there exists examples where events are equally "large"?

[tholzheim]

The co-located term is usually used for workshops that are co-located with an conference

e.g.

• "Proceedings of the 3rd Wikidata Workshop 2022 co-located with the 21st International Semantic Web Conference (ISWC2022)" (proceedings title)
• "The 3rd Wikidata Workshop Workshop for the scientific Wikidata community @ ISWC 2022" (event description)

For equally "large" events there are at least two different types:

• merged conference
  • one call for papers
  • unified schedule (paper can not clearly be assigned to one conference)
  • one program committee for the whole event
  • example: AACL IJCNLP 2022
  • → one wd item for the event (plus links to associated event series)?
• joint location and/or topic
  • each conference has its own call for papers
  • papers at the event can be assigned to one conference
  • each conference has its own program committee
  • example: IJCLR 2021
  • → wd items for the joint event and all the conferences?

Thus, co-located could be an asymmetric property since the "smaller" event usually links to the "larger" event. The joint conferences are a special case where either the "co-located" or part of (P361) property could be used.

[WolfgangFahl]

The property is there now - is it already used in the scholia queries?

[fnielsen]

The property is there now - is it already used in the scholia queries?

I do not think so, but we should.