arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.00800cs.CL
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用于域外依存句法分析的树库嵌入向量

Treebank Embedding Vectors for Out-of-domain Dependency Parsing

ADAPT Centre(ADAPT中心);Dublin City University(都柏林城市大学)

Joachim Wagner, James Barry, Jennifer Foster

摘要:

单语依存句法分析的最新进展是树库嵌入向量的思想,它允许特定语言的所有树库用作训练数据,同时允许模型从一个树库中优先选择训练数据,并在测试时选择首选的树库。我们基于这个想法,通过1)引入一种方法来预测不是来自训练中使用的树库的句子的树库向量,以及2)探索当我们在测试时远离预定义的树库嵌入向量,而是设计定制的插值时会发生什么。我们表明,1)有插值向量优于预定义的,和2)树库向量可以预测足够的准确性,为九出十测试语言,以匹配的性能的Oracle方法,知道最合适的预定义树库嵌入的测试集。

英文摘要:

A recent advance in monolingual dependency parsing is the idea of a treebank embedding vector, which allows all treebanks for a particular language to be used as training data while at the same time allowing the model to prefer training data from one treebank over others and to select the preferred treebank at test time. We build on this idea by 1) introducing a method to predict a treebank vector for sentences that do not come from a treebank used in training, and 2) exploring what happens when we move away from predefined treebank embedding vectors during test time and instead devise tailored interpolations. We show that 1) there are interpolated vectors that are superior to the predefined ones, and 2) treebank vectors can be predicted with sufficient accuracy, for nine out of ten test languages, to match the performance of an oracle approach that knows the most suitable predefined treebank embedding for the test set.

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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