Authors
Nathanael Chambers, Taylor Cassidy, Bill McDowell, Steven Bethard
Publication date
2014/10/1
Journal
Transactions of the Association for Computational Linguistics
Volume
2
Pages
273-284
Publisher
MIT Press
Description
The past 10 years of event ordering research has focused on learning partial orderings over document events and time expressions. The most popular corpus, the TimeBank, contains a small subset of the possible ordering graph. Many evaluations follow suit by only testing certain pairs of events (e.g., only main verbs of neighboring sentences). This has led most research to focus on specific learners for partial labelings. This paper attempts to nudge the discussion from identifying some relations to all relations. We present new experiments on strongly connected event graphs that contain ∼10 times more relations per document than the TimeBank. We also describe a shift away from the single learner to a sieve-based architecture that naturally blends multiple learners into a precision-ranked cascade …
Total citations
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Scholar articles
N Chambers, T Cassidy, B McDowell, S Bethard - Transactions of the Association for Computational …, 2014