Building a Corpus of Temporal-Causal Structure

While recent corpus annotation efforts cover a wide variety of semantic structures, work on temporal and causal relations is still in its early stages. Annotation efforts have typically considered either temporal relations or causal relations, but not both, and no corpora currently exist that allow the relation between temporals and causals to be examined empirically. We have annotated a corpus of 1000 event pairs for both temporal and causal relations, focusing on a relatively frequent construction in which the events are conjoined by the word and. Temporal relations were annotated using an extension of the BEFORE and AFTER scheme used in the TempEval competition,

• Type: Conference
• Year: 2008
• Where: LREC
• Authors: Steven Bethard, William Corvey, Sara Klingenstein, James H. Martin
• Keywords: Annotation Efforts, Causal Relations, Education, LREC 2008, Temporal Relations