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arXiv 2009.00672cs.CLcs.DS
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基于向量空间密度的文档相似性研究

Document Similarity from Vector Space Densities

Harvard University(哈佛大学)

Ilia Rushkin

摘要:

我们提出了一个计算轻的方法来估计文本文档之间的相似性,我们称之为密度相似性(DS)的方法。该方法基于高维欧氏空间中的词嵌入和核回归,并考虑到词之间的语义关系。我们发现,这种方法的精度几乎是相同的一个国家的最先进的方法,而在速度上的增益是非常可观的。此外,我们引入广义版本的前k精度度量和Jaccard度量相似性模型之间的协议。

英文摘要:

We propose a computationally light method for estimating similarities between text documents, which we call the density similarity (DS) method. The method is based on a word embedding in a high-dimensional Euclidean space and on kernel regression, and takes into account semantic relations among words. We find that the accuracy of this method is virtually the same as that of a state-of-the-art method, while the gain in speed is very substantial. Additionally, we introduce generalized versions of the top-k accuracy metric and of the Jaccard metric of agreement between similarity models.

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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