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Re: [ontolog-forum] Event Ontology

From: Ansgar Scherp <scherp@uni-koblenz.de>
Date: Wed, 02 Sep 2009 16:28:03 -0700
Message-ID: <4A9EFF83.8030509@uni-koblenz.de>
To: abdoul@cytanet.com.cy
CC: semantic-web@w3.org, ontolog-forum@ontolog.cim3.net
Dear Azamat and all


It is very interesting that on this mailinglist a similar discussion 
started that happened some time ago on the Linked Open Data mailinglist. 
Thus, firstly I like to refer to the relevant thread on the LOD list:
http://lists.w3.org/Archives/Public/public-lod/2009Jul/

In fact, the concept of events is well studied in foundational sciences 
such as philosophy. This work was the input for the development of the 
Event-Model-F. There is some brief description about that model in the 
LOD mailinglist archive as well:
http://lists.w3.org/Archives/Public/public-lod/2009Jul/0383.html

The Event-Model-F provides comprehensive support to represent time and 
space, objects and persons participating in events, and mereological, 
causal, and correlative relationships between events. In addition, the 
Event-Model-F provides a flexible means for event composition, modeling 
event causality and event correlation, and representing different 
interpretations of the same event.
It will be presented this Friday at the Knowledge Capturing conference 
(K-CAP) in Redondo Beach, CA.

Further information on the ontology can be found on its web page, 
including the ontology itself, documentation, and a Java-based API 
implementation: http://isweb.uni-koblenz.de/eventmodel

Best

Ansgar


> John Bottoms wrote:
> "An interesting question might be: how do we migrate from detecting 
> simple events to more complex ones. Or, we might discuss how those 
> events are represented in an ontology so that they are anticipated and 
> detected correctly."
>
> Indeed. Being the universal and ubiquitous real world phenomena, 
> events deserve a full scale discussion. Events as happenings, 
> occurrences and occasions are the most familiar things, as being 
> everywhere and every time to everything. They are key elements in the 
> very Nature, from subatomic to cosmic scale, as well as in life, 
> mental life, social life, in technology and industry, mass media and 
> computing, particularly. Natural events, physical events, chemical 
> events, biological events, mental events, social events, political 
> events, cultural events are just some types of generic Event.
>
> Imo, most confusion could be avoided with its adequate defining as "a 
> change happening at a given place/time, followed and caused by some 
> other events (changes, acts, or actions)."
>
> I am inclined to think that the current downgrading of event as a real 
> world "nonevent" comes from its poor ontological study.
>
> Azamat Abdoullaev
>
>
>
>
> ----- Original Message ----- From: "John Bottoms" 
> <john@firststarpress.com>
> To: "[ontolog-forum]" <ontolog-forum@ontolog.cim3.net>
> Sent: Wednesday, September 02, 2009 7:01 PM
> Subject: Re: [ontolog-forum] Vocabularies for file data, content 
> events,errors
>
>
> Azamat,
>
> There are some events that are easily detected. It is not hard
> to tell when a firecracker has exploded. It is much harder to
> find the bottom of a recession. It's all in the classifiers
> or filters.
>
> An interesting question might be: how do we migrate from detecting
> simple events to more complex ones. Or, we might discuss how those
> events are represented in an ontology so that they are anticipated
> and detected correctly. I am particularly interested in the linkage
> between predicates and the metrics for detection.
>
> I just finished G.Lakoff's book on category theory, it is popular
> writing but quite an interesting read, "Women, Fire and Dangerous
> Things".
>
> -John Bottoms
>  FirstStar
>  Concord, MA
>  T: 978-505-9878
>
> AzamatAbdoullaev wrote:
>
>> "events are primarily linguistic or cognitive in nature. That is, the 
>> world
>> does not really contain events. Rather, events are the way by which 
>> agents
>> classify certain useful and relevant patterns of change."
>> http://motools.sourceforge.net/event/event.html
>> I read many event ontologies, but this one is the most idiosyncratic, 
>> softly
>> speaking.
>> Wonder if it is in the Linked Data Cloud. If yes, then it hardly will 
>> give
>> any refreshing rainwater.
>> The world without events is the world without any precipitation as 
>> well :).
>> Thanks.
>> Azamat Abdoullaev
>> http://standardontology.org
>>
>>
>> ----- Original Message ----- From: "Toby Inkster" <tai@g5n.co.uk>
>> To: "Niklas Lindström" <lindstream@gmail.com>
>> Cc: "Semantic Web" <semantic-web@w3.org>
>> Sent: Wednesday, September 02, 2009 1:14 PM
>> Subject: Re: Vocabularies for file data, content events, errors
>>
>>
>> On 2 Sep 2009, at 10:37, Niklas Lindström wrote:
>>
>>
>>> * simple file data properties, describing:
>>>  - checksum+algorithm (and/or direct properties for md5, sha1/-2  
>>> etc.),
>>>  - filename/slug (unless dct:identifier is suitable enough?).
>>
>>
>> foaf:sha1 exists, but that might not be much use if you if you want
>> to...
>>
>>
>>> * content-related events, such as "the act of reading from a
>>> dataset/collection (e.g. a feed)", "create", "update" and specifically
>>> "delete" (or "deletion")
>>
>>
>> ... track changes to the document's hash over time.
>>
>>
>>> Currently we use AtomOwl to represent versioned entries
>>
>>
>>
>> That's probably a pretty good start.
>>
>> If you add in an events ontology (and I'd recommend starting with
>> Yves Raimond's one and building on top of it) then you should be able
>> to define a EntryChange class as a subclass of Yves' ev:Event class
>> with accompanying previousVersion (subproperty of ev:factor) and
>> subsequentVersion (subproperty of ev:product).
>>
>> Building on Yves' ontology for tracking document changes is more or
>> less what I've done here:
>>
>> http://ontologi.es/status
>>
>
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Received on Wednesday, 2 September 2009 23:29:02 UTC

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