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arXiv 1206.4607cs.LGstat.ML
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分布式树内核

Distributed Tree Kernels

University of Rome Tor Vergata(罗马第二大学)

Fabio Massimo Zanzotto, Lorenzo Dell'Arciprete

摘要:

在本文中,我们提出了分布式树核(DTK)作为一种新的方法,以减少时间和空间复杂度的树核。使用线性复杂度算法计算树的向量,我们将树片段的特征空间嵌入到低维空间中,其中核计算直接用点积完成。我们发现DTK更快,与树内核相关,并在两个自然语言处理任务中获得统计相似的性能。

英文摘要:

In this paper, we propose the distributed tree kernels (DTK) as a novel method to reduce time and space complexity of tree kernels. Using a linear complexity algorithm to compute vectors for trees, we embed feature spaces of tree fragments in low-dimensional spaces where the kernel computation is directly done with dot product. We show that DTKs are faster, correlate with tree kernels, and obtain a statistically similar performance in two natural language processing tasks.

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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