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arXiv 1906.04772cs.CL
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英语名词复合表征的系统比较

A Systematic Comparison of English Noun Compound Representations

Bar-Ilan University(巴伊兰大学)

Vered Shwartz

摘要:

构建名词复合词的有意义的表示并不是一件小事,因为它们中的许多很少出现在语料库中。为此,合成函数通过组合其成分分布向量来近似名词复合物的分布表示。在更一般的情况下,短语嵌入是通过最小化表示释义的向量之间的距离来训练的。我们通过一系列的任务和分析,并与大量的底层词嵌入,比较各种类型的名词复合表示,包括分布,成分,和基于释义的表示。我们发现,事实上,在大多数情况下,组合函数产生更高质量的表示比分布的,他们提高了计算能力。没有一个函数在所有情况下都表现最好,这表明联合训练目标可能会产生更好的表示。

英文摘要:

Building meaningful representations of noun compounds is not trivial since many of them scarcely appear in the corpus. To that end, composition functions approximate the distributional representation of a noun compound by combining its constituent distributional vectors. In the more general case, phrase embeddings have been trained by minimizing the distance between the vectors representing paraphrases. We compare various types of noun compound representations, including distributional, compositional, and paraphrase-based representations, through a series of tasks and analyses, and with an extensive number of underlying word embeddings. We find that indeed, in most cases, composition functions produce higher quality representations than distributional ones, and they improve with computational power. No single function performs best in all scenarios, suggesting that a joint training objective may produce improved representations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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