- From: Vicki Tardif <vtardif@google.com>
- Date: Wed, 30 May 2018 14:19:49 -0400
- To: Thad Guidry <thadguidry@gmail.com>
- Cc: roger@ecstatic.com, martynas@atomgraph.com, allison.muri@usask.ca, koubarak@di.uoa.gr, chaals is Charles McCathie Nevile <chaals@yandex.ru>, "schema.org Mailing List" <public-schemaorg@w3.org>
- Message-ID: <CAOr1obGqpUrAF1TuwxsxQBc6qS8GYYY7Vr+OWbZC1mPOtUftqw@mail.gmail.com>
To Roger's point, I think we should distinguish between events and ages or eras. I think it is fine to call WWII an "event", but the Bronze Age or the 1960s are more timeframes when events happened rather than the events themselves. - Vicki On Wed, May 30, 2018 at 2:04 PM Thad Guidry <thadguidry@gmail.com> wrote: > Hi Roger ! > > Good points. However... > > It is all up to the consuming applications to extract value from any > structured data you provide. Google, Bing, MyApplications, etc. > > 99% of the applications will understand what you mean when you say > > Event : Bronze Age > > If a machine or application has difficulty understanding the Semantic > meaning of that statement ? Then you can supply just a small handful of > additional structure to tell that machine or application what you really > mean. > > Event : Bronze Age > sameAs : https://www.wikidata.org/wiki/Q11761 > > Your looking at the Event class description with the context of "...such > as..." DON'T, we provide merely examples. It is best to concern yourself > with only the leading description... > "an event happening at a certain time and location" > > And where we already have an understanding that Location is ... OPTIONAL :) > > In fact, in all things Schema.org and Semantic Web, the only must-have > property rule is that of "name". Everything else is bonus structured data. > "Some structure is better than no structure at all" > > Its very likely in the next release that we update the description to > simply be ... (which in my opinion we should have done long ago) > > "an event happening at a certain time, this could include a location when > necessary. Examples, concert, lecture, festival, Bronze Age" > > -Thad > > On Wed, May 30, 2018 at 12:25 PM Roger Rohrbach <roger@ecstatic.com> > wrote: > >> Thad, >> >> The Event class’ description is “an event happening at a certain time >> and location, such as a concert, lecture or festival.” Its >> properties—composer, performer, organizer, audience, doorTime, >> workPerformed, review etc.—clearly adhere to this narrow definition. >> You’re suggesting that we shoehorn World War II battles and the Bronze Age >> into this schema, and quell any uneasiness thus induced by referencing an >> external vocabulary. I will admit that this is possible; to my mind, it is >> undesirable. Were the Event type truly a “general type” capable of serving >> as the superclass for these two different semantic elements, I’d feel >> differently. >> >> To use an analogy, it’s as if schema.org provided Funeral, but not >> Ceremony, and you told me “just use Funeral to represent Wedding, and >> reference https://www.wikidata.org/wiki/Q49836 as the additionalType.” >> >> I accept the premise that this is not a universal ontology. But what >> classes there are, ought to retain their semantics. The Bronze Age is not >> a-kind-of concert, lecture or festival. I can’t see how your approach >> would result in truly machine-readable content. >> >> respectfully, >> >> Roger >> >> >> On May 29, 2018, at 2:13 PM, Thad Guidry <thadguidry@gmail.com> wrote: >> >> Allison and Roger... see examples below. Yes, you can still use Event. >> When you don't have a startDate or endDate, then just leave them excluded. >> The use of additionalType and referencing other ontologies or Wikidata is >> quite useful and a generally accepted best practice when you need to easily >> subtype things that Schema.org has only general types available. >> >> { >> "@context": "http://schema.org", >> "@type": "Event", >> "sameAs": "https://www.wikidata.org/wiki/Q327052", >> "additionalType": "https://www.wikidata.org/wiki/Q15815670", >> "name": "Battle of Aachen", >> "startDate": "2 October 1944", >> "description": "major conflict during World War II", >> "endDate": "21 October 1944" >> } >> >> { >> "@context": "http://schema.org", >> "@type": "Event", >> "sameAs": "https://www.wikidata.org/wiki/Q11761", >> "additionalType": "https://www.wikidata.org/wiki/Q15401699", >> "name": "Bronze Age", >> "description": "prehistoric period", >> "about": "Historical Event" >> } >> >> Any other questions ? >> -Thad >> >> >>
Received on Wednesday, 30 May 2018 18:20:27 UTC