The Circumstantial Event Ontology (CEO) and ECB+/CEO: an Ontology and Corpus for Implicit Causal Relations between Events (L18-1)
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| Challenge: | a new ontology for calamity events models semantic circumstantial relations between event classes . a circumstancial relation makes clear "why" something happened, without necessarily predicting it. |
| Approach: | They propose a circumstantial event ontology that models semantic circumstancial relations between event classes . they propose ECB+ annotated corpus for circumstantal relations and a meta model . |
| Outcome: | The proposed model captures that the change yielded by one event explains to people the happening of the next event when observed. |
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| Challenge: | Existing work on event relation extraction focuses on hierarchical, temporal and causal relations but ignores the interdependence between events. |
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| Challenge: | Existing datasets for causal discovery from text lack granularity and abstraction for domains characterized by such complex causality. |
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