FRED as an Event Extraction Tool
نویسندگان
چکیده
Events are elusive entities; as the authors of [7] argue, even human annotators do not agree on what is an event and what is its boundary in terms of the extension of its participants, temporal and geospatial extent, etc. More aspects of events appear when trying to recognize or extract them from text: polarity of speaker’s judgment on events, negation, modality, relations (temporal, causal, declarative, etc.) to other events, etc. For example, the text:
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