Contextualizing Semantic Representations Using Syntactically Enriched Vector Models

We present a syntactically enriched vector model that supports the computation of contextualized semantic representations in a quasi compositional fashion. It employs a systematic combination of first- and second-order context vectors. We apply our model to two different tasks and show that (i) it substantially outperforms previous work on a paraphrase ranking task, and (ii) achieves promising results on a wordsense similarity task; to our knowledge, it is the first time that an unsupervised method has been applied to this task.

• Type: Journal
• Year: 2010
• Where: ACL
• Authors: Stefan Thater, Hagen Fürstenau, Manfred Pinkal
• Keywords: ACL 2010, Computational Linguistics, Paraphrase Ranking Task, Quasi Compositional Fashion, Second-order Context Vectors