- From: Thad Guidry <thadguidry@gmail.com>
- Date: Tue, 6 Mar 2012 11:39:14 -0600
- To: public-vocabs@w3.org
- Message-ID: <CAChbWaOYhHk6Zg2Ti8Lq_9+zm_HDU7QLsNizFrPibP7=53OC+g@mail.gmail.com>
What kind of metadata do you want to capture about Secretariet ? What sport did Secretariet play ? Look at the properties within the types themselves in Freebase: http://www.freebase.com/topic/edit/en/secretariat versus http://www.freebase.com/topic/edit/en/kobe_bryant What do Greyhound racing <http://www.youtube.com/watch?v=0VD99RnZXCo> and Horse racing and Formula 1 racing have in common ? What possible properties could Kobe Bryant<http://www.freebase.com/topic/edit/en/kobe_bryant>, Secretariat <http://www.freebase.com/topic/edit/en/secretariat>, Brett Lee<http://www.youtube.com/watch?v=0VD99RnZXCo> (the greyhound), and Sebastian Vettel<http://www.formula1.com/teams_and_drivers/drivers/822/> share ? Is Sebastian Vettel an Athlete ? If Yes, what properties would you gather under Athlete for him ? What properties under Athlete would he share with Kobe Bryant or even Secretariat ? They are all certainly Biological Organisms that came from parents. :) My suggestion: Start at common properties and then work your way up to a higher common type that would encapsulate all their shared common properties on a piece of paper, using those 4 "athletes" or "participants" or "competitors" as your starting point. Perhaps they all "race" and have stats on their "races competed in" and "average lap times", but Kobe doesn't. Perhaps they all "play" or "compete" in a Sport ? That could be TRUE. The bottom line, find out what properties you would place under an Athlete type. Which properties would you place under a Competitor type ? I agree that the Sports domain is very large, and worldwide. I would hope that the Sports proposals continue to look at the domain always from a worldwide perspective. On Tue, Mar 6, 2012 at 3:51 AM, Paul Wilton <paul.wilton@ontoba.com> wrote: > Hi Thad > I dont think I agree with that. > A Person (or an Agent to be more correct) becomes a competitor through > a relationship with a sporting event (eg sport:Competition in the > sport ontology, or schema:SportsEvent in schema.org) - being a > competitor is temporal for the duration of the event (and of course > future and historical sporting events). > > Some more examples why vocations should not be subclasses of a Person: > If we had Actor subClassOf Person, this implies we also need Actor > subClassOf Horse and Dog (Black Beauty and Lassie) - which would mean > that John Wayne (as an instance of Actor) would also thus be a Dog and > a Horse which is clearly incorrect. The concept of an Athlete is > exactly the same. > > When we create closed domain models that only work within our domain, > then you are correct, you can effectively do what you want as you only > have to make the model work for your own closed domain use-cases. > However when specifying an open-world model (ontology, schema or > otherwise) that you expect the world to use, then your model has to > model the world accurately and work for all use cases and edge cases > - not just your own. > > In this case, the Athlete subClassOf Person model does not work for > all use-cases. > If Athlete was a vocation then this vocation would not be restricted > just to People so would work for ESPN's use-case. > > kind regards > Paul > > > > On Mon, Mar 5, 2012 at 3:58 PM, Thad Guidry <thadguidry@gmail.com> wrote: > > My opinion is that Athletes are indeed a sub-type of a Person. > > > > You could look at the problem from a different angle as well. Your > examples > > of a horse, robot, etc... would be a different type, such as > "Competitors". > > > > ESPN simply decided to create their own rule of "ALL COMPETITORS ARE > > ATHLETES". Nothing wrong with making their own rules within their own > > namespace, "their website, or TV channel". My rules would say that "ALL > > ATHLETES ARE PERSONS" and "ALL COMPETITORS COMPETE IN AN SPORTING EVENT" > > > > -- > > -Thad > > http://www.freebase.com/view/en/thad_guidry > -- -Thad http://www.freebase.com/view/en/thad_guidry
Received on Tuesday, 6 March 2012 17:39:42 UTC