Event Instance

An Event Instance is a phenomena state with entities, a start time.

• Context:
  • It can be in a Sequence Relation with Preceeding Events and Succeeding Events.
  • It can contain Co-Occurrences.
  • It can be triggered by an Event Trigger.
  • It can result in one or more Event Outcomes.
  • It can range from being a Deterministic Event to being a Random Event.
  • It can range from being an Adverse Event, a Neutral Event, or a Positive Event. (Altman & Bland, 1998)
  • It can be represented by an Event Referencer, such as an event record or an event mention.
  • …
• Example(s):
  • an Act.
  • a System Change Event (e.g. associated to a process such as a Business Event.
  • a Meeting.
  • …
• Counter-Example(s):
  • a Random Experiment Event, a subset of a Sample Space.
  • a Formal Operation.
• See: Prediction, Causal Relation, Event Summary.

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References

2009

• (WordNet, 2009) ⇒ http://wordnetweb.princeton.edu/perl/webwn?s=event
  • S: (n) event (something that happens at a given place and time)
  • S: (n) event, case (a special set of circumstances) "in that event, the first possibility is excluded"; "it may rain in which case the picnic will be canceled"
  • S: (n) event (a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory)
  • S: (n) consequence, effect, outcome, result, event, issue, upshot (a phenomenon that follows and is caused by some previous phenomenon) "the magnetic effect was greater when the rod was lengthwise"; "his decision had depressing consequences for business"; "he acted very wise after the event"
• http://en.wiktionary.org/wiki/event
  • 1. An occurrence of social or personal importance.
  • 2. (physics) A point in spacetime having three spatial coordinates and one temporal coordinate
  • 3. (computing) A possible action that the user can perform and is monitored by an application or the operating system (event listener). When an event occurs an event handler is called which performs a specific task.
• (Wikipedia, 2009) ⇒ http://en.wikipedia.org/wiki/Event_(philosophy)
  • In philosophy, events are objects in time or instantiations of properties in objects. However, a definite definition has not been reached, as multiple theories exist concerning events.
• http://en.wikipedia.org/wiki/Event_(probability_theory)
  • In probability theory, an event is a set of outcomes (a subset of the sample space) to which a probability is assigned. Typically, when the sample space is finite, any subset of the sample space is an event (i.e. all elements of the power set of the sample space are defined as events). However, this approach does not work well in cases where the sample space is infinite, most notably when the outcome is a real number. So, when defining a probability space it is possible, and often necessary, to exclude certain subsets of the sample space from being events

1998

• (Altman & Bland, 1998) ⇒ Douglas G Altman, and J Martin Bland. (1998). “Statistics Notes: Time to Event (survival) Data.” In: BMJ: British Medical Journal. doi:10.1136/bmj.317.7156.468
  • QUOTE: In many medical studies an outcome of interest is the time to an event. Such events may be adverse, such as death or recurrence of a tumour; positive, such as conception or discharge from hospital; or neutral, such as cessation of breast feeding. It is conventional to talk about survival data and survival analysis, regardless of the nature of the event. Similar data also arise when measuring the time to complete a task, such as walking 50 metres.

    The distinguishing feature of survival data is that at the end of the follow up period the event will probably not have occurred for all patients. For these patients the survival time is said to be censored, indicating that the observation period was cut off before the event occurred.

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