Event Extraction
- Tags
- text-processing
[see page 28, Identify] all reports of event instances, typically in a small-set of classes.
can be divided into:
| Task | Meaning |
|---|---|
| Event detection | find all mentions of events in a text |
| Event classification | assign a class to the detected event |
[see page 31, Challenges]
Events can be thought of as relations between entities (attending the event) however they can be shown to be more complex.
They're:
- Temporally situated, often in a short duration
- Involve multiple role-players (>2)
- Often expressed across multiple sentences