- From: Graham Klyne <gk@ninebynine.org>
- Date: Wed, 20 Jun 2018 08:35:26 +0100
- To: Sebastian Samaruga <ssamarug@gmail.com>, Simon.Cox@csiro.au
- CC: "Peter F. Patel-Schneider" <pfpschneider@gmail.com>, public-schemaorg@w3.org, W3C Semantic Web IG <semantic-web@w3.org>
See also:
CIDOC CRM - http://www.cidoc-crm.org (event here is considered a subclass of a
period - e.g. http://www.cidoc-crm.org/sites/default/files/objProduction.jpg)
PeriodO - http://perio.do (focuses on identifying periods rather than
measurement/calculation)
#g
--
On 20/06/2018 04:48, Sebastian Samaruga wrote:
> Events denoting dimensional changes of State (measures / observations) over
> an entity? Periods / processes: spans while an observation in respect to a
> (dimensional) concept remains the same?
>
> State: countryPresident,
> Event: presidentialElection,
> Period / Process: presidentialRuling.
>
> Still thinking in a more semiotical / dimensional approach.
>
> On Tue, Jun 19, 2018, 10:58 PM Sebastian Samaruga <ssamarug@gmail.com>
> wrote:
>
>> Semiotically, an Event could be regarded as the occurrence of a Concept in
>> the form of a Sign for a given Object (metaclass / class / instance
>> relationship). Occurrences of entities happens as dimensional measures, not
>> only temporal or physical ('birthdays' could be a 'dimension'). Measures
>> bring Data from which Contexts (schema) could be aggregated. And from
>> schema one could infer Interactions or roles in behaviors (DCI OO design
>> pattern).
>>
>> This is roughly sketched at:
>> https://github.com/ssamarug/ssamarug/blob/master/Metamodel.pdf?raw=true
>>
>> I think dimensional modelling approach is not only useful in OLAP cubes
>> but also in the Semantic Web. For example in this Event / Period dilemma.
>>
>> Is this discussion pertinent to the SW community in general
>> (semantic-web)? As this is an ontological issue I'm including the
>> corresponding list. Regards,
>>
>> Sebastián.
>> http://exampledotorg.blogspot.com
>>
>>
>> On Tue, Jun 19, 2018, 10:38 PM <Simon.Cox@csiro.au> wrote:
>>
>>> That is signified by the fact that '19 June 2018' doesn't have a name,
>>> only an index.
>>>
>>> An 'event' that happened on that day would probably have a name relating
>>> to the activity.
>>>
>>> -----Original Message-----
>>> From: Peter F. Patel-Schneider [mailto:pfpschneider@gmail.com]
>>> Sent: Wednesday, 20 June, 2018 11:17
>>> To: public-schemaorg@w3.org
>>> Subject: Re: Historical events
>>>
>>> I think that ages are qualitatively different from events. Consider a
>>> very short age - 19 June 2018. As far as I am concerned that is not an
>>> event.
>>>
>>>
>>> peter
>>>
>>>
>>>
>>> On 06/19/2018 05:06 PM, Anthony Moretti wrote:
>>>> Look, I'm no temporal expert or anything, but maybe the problem is in
>>>> English it could be a continuum from "event" to "period" as the
>>>> interval of time being named gets longer, with no clear boundary.
>>>>
>>>> Mike's birthday party - an event
>>>> The Middle Ages - a period
>>>>
>>>> Because from a data modeling point of view they're the same (at least
>>>> as far as my modeling knowledge goes).
>>>>
>>>> So an unpopular solution I'm guessing would be to rename the type to
>>>> *EventOrPeriod*.
>>>>
>>>> So your previous example:
>>>>
>>>> The Black Death
>>>> superEventOrPeriod: The Middle Ages
>>>>
>>>> People's ideas?
>>>>
>>>> Anthony
>>>>
>>>> On Tue, Jun 19, 2018 at 4:10 PM Richard Wallis
>>>> <richard.wallis@dataliberate.com
>>>> <mailto:richard.wallis@dataliberate.com>>
>>>> wrote:
>>>>
>>>> Anthony,
>>>>
>>>> I’m not following your logic here. I don’t see a Period (of time
>>> from a
>>>> start time/date to an end date/time) as an event.
>>>>
>>>> ~Richard.
>>>>
>>>> Richard Wallis
>>>> Founder, Data Liberate
>>>> http://dataliberate.com
>>>> Linkedin: http://www.linkedin.com/in/richardwallis
>>>> Twitter: @rjw
>>>>
>>>> On 20 June 2018 at 00:05, Anthony Moretti <
>>> anthony.moretti@gmail.com
>>>> <mailto:anthony.moretti@gmail.com>> wrote:
>>>>
>>>> That definitely works, but only if some definition of Period was
>>>> agreed on.
>>>>
>>>> The property periodEventOccurred would be a subproperty of
>>>> superEvent in any case:
>>>>
>>>> superEvent
>>>>
>>>> periodEventOccurred
>>>>
>>>>
>>>> So you could describe the same information using the existing
>>> term
>>>> right?
>>>>
>>>> The Black Death
>>>>
>>>> superEvent: The Middle Ages
>>>>
>>>>
>>>> Anthony
>>>>
>>>>
>>>> On Tue, Jun 19, 2018 at 3:50 PM Richard Wallis
>>>> <richard.wallis@dataliberate.com
>>>> <mailto:richard.wallis@dataliberate.com>> wrote:
>>>>
>>>> Using a Period Type I would suggest a cleaner alternative
>>> way of
>>>> saying an event occurred during a period would be like this:
>>>>
>>>> {
>>>> "@context": "http://schema.org",
>>>> "@type": "Event",
>>>> "name": "The Black Death",
>>>> "Description": "A pandemic that spread throughout Europe",
>>>> "periodEventOccured": {
>>>> "@type": "Period",
>>>> "name": "The Middle Ages",
>>>> "approximateStartDate": "400AD",
>>>> "approximateEndDate":"1500AD"
>>>> }
>>>> }
>>>>
>>>> On 19 June 2018 at 23:41, Anthony Moretti
>>>> <anthony.moretti@gmail.com <mailto:
>>> anthony.moretti@gmail.com>>
>>>> wrote:
>>>>
>>>> I was referencing the development version of Schema, I
>>>> should probably reference production, sorry Roger:
>>>>
>>>> * https://schema.org/subEvent
>>>> * https://schema.org/superEvent
>>>>
>>>> To say some event happened during the Iron Age for
>>> example:
>>>>
>>>> Invention of iron plow
>>>> superEvent: Iron Age
>>>>
>>>>
>>>> Anthony
>>>>
>>>> On Tue, Jun 19, 2018 at 3:05 PM Muri, Allison
>>>> <allison.muri@usask.ca <mailto:allison.muri@usask.ca>>
>>> wrote:
>>>>
>>>> The google Cloud host is really slow and I think
>>> the 404
>>>> is a result of something loading too slowly. I could
>>>> probably publish this more reliably on my own
>>> website! I
>>>> generally just wait a bit and reload the page. Sorry
>>>> about that.
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On Jun 19, 2018, at 3:58 PM, Roger Rohrbach
>>>> <roger@ecstatic.com <mailto:roger@ecstatic.com>>
>>> wrote:
>>>>
>>>>> I get 404 Not Found for both of those pages.
>>>>>
>>>>>
>>>>>> On Jun 19, 2018, at 11:50 AM, Anthony Moretti
>>>>>> <anthony.moretti@gmail.com
>>>>>> <mailto:anthony.moretti@gmail.com>> wrote:
>>>>>>
>>>>>> Isn't it already modeled by these properties?:
>>>>>>
>>>>>> * https://webschemas.org/subEvent
>>>>>> * https://webschemas.org/superEvent
>>>>>>
>>>>>> Events can exist in part-whole hierarchies, aren't
>>>>>> named periods just events high in these
>>> hierarchies?
>>>>>>
>>>>>> Anthony
>>>>>
>>>>
>>>>
>>>
>>>
>>>
>
Received on Wednesday, 20 June 2018 07:35:59 UTC