Integer-Programming Ensemble of Temporal-Relations Classifiers.
The extraction of temporal events from text and understanding temporal relations between the events are major challenges in natural language processing. We present an ensemble method, which reconciles the output of multiple classifiers of temporal expressions, subject to consistency constraints across the output. Computational experiments with an integer-programming model improve upon the best published results from two recent challenges, SemEval-2013 TempEval-3 (Temporal Annotation) and SemEval-2016 Task 12 (Clinical TempEval).
Publisher URL: http://arxiv.org/abs/1412.1866
DOI: arXiv:1412.1866v3
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