Towards a Semantic Model for Textual Entailment

Linguistic Issues in Language Technology

Sophie Chesney¹  Benno Kruit²  Assaf Toledo³  Sophia Katrenko³  Heidi Klockmann³  Pepijn Kokke³  Stavroula Alexandropoupou³  Yoad Winter³ 

[1] University College London;University of Amsterdam;Utrecht University

关键词: textual entailment;    textual annotation;    semantic modeling;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: C S L I Publications

【 摘 要 】

We introduce a new formal semantic model for annotating textual entailments that describes restrictive, intersective, and appositive modification. The model contains a formally defined interpreted lexicon, which specifies the inventory of symbols and the supported semantic operators, and an informally defined annotation scheme that instructs annotators in which way to bind words and constructions from a given pair of premise and hypothesis to the interpreted lexicon. We explore the applicability of the proposed model to the Recognizing Textual Entailment (RTE) 1–4 corpora and describe a first-stage annotation scheme on which we based the manual annotation work. The constructions we annotated were found to occur in 80.65% of the entailments in RTE 1–4 and were annotated with cross-annotator agreement of 68% on average. The annotated parts of the RTE corpora are publicly available for further research.   .

【 授权许可】

Unknown