Mapping Texts to Scripts: An Entailment Study
Simon Ostermann, Hannah Seitz, Stefan Thater, Manfred Pinkal · 2018
Commonsense knowledge as provided by scripts is crucially relevant for text understanding systems, providing a basis for commonsense inference.This paper considers a relevant subtask of script-based text understanding, the task of mapping event mentions in a text to script events.We focus on script representations where events are associated with paraphrase sets, i.e. sets of crowdsourced event descriptions.We provide a detailed annotation of event mention/description pairs with textual entailment types.We demonstrate that representing events in terms of paraphrase sets can massively improve the performance of text-to-script mapping systems.However, for a residual substantial fraction of cases, deeper inference is still required.