Computer Science > Computation and Language
[Submitted on 2 Apr 2019]
Title:Using Multi-Sense Vector Embeddings for Reverse Dictionaries
View PDFAbstract:Popular word embedding methods such as word2vec and GloVe assign a single vector representation to each word, even if a word has multiple distinct meanings. Multi-sense embeddings instead provide different vectors for each sense of a word. However, they typically cannot serve as a drop-in replacement for conventional single-sense embeddings, because the correct sense vector needs to be selected for each word. In this work, we study the effect of multi-sense embeddings on the task of reverse dictionaries. We propose a technique to easily integrate them into an existing neural network architecture using an attention mechanism. Our experiments demonstrate that large improvements can be obtained when employing multi-sense embeddings both in the input sequence as well as for the target representation. An analysis of the sense distributions and of the learned attention is provided as well.
Submission history
From: Michael A. Hedderich [view email][v1] Tue, 2 Apr 2019 14:17:19 UTC (51 KB)
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