We describe a simple but effective method for cross-lingual syntactic
transfer of dependency parsers, in the scenario where a large amount of
translation data is not available. The method makes use of three steps: 1) a
method for deriving cross-lingual word clusters, which can then be used in a
multilingual parser; 2) a method for transferring lexical information from a
target language to source language treebanks; 3) a method for integrating these
steps with the density-driven annotation projection method of Rasooli and
Collins (2015). Experiments show improvements over the state-of-the-art in
several languages used in previous work, in a setting where the only source of
translation data is the Bible, a considerably smaller corpus than the Europarl
corpus used in previous work. Results using the Europarl corpus as a source of
translation data show additional improvements over the results of Rasooli and
Collins (2015). We conclude with results on 38 datasets from the Universal
Dependencies corpora.

本文提出了一种简单而有效的方法，可以在没有大量翻译数据的情况下进行跨语言的句法转移，这种方法基于三个步骤：1）推导跨语言单词簇的方法，可用于多语言解析器；2）将目标语言的词汇信息转移到源语言树库；3）将这些步骤与 Rasooli 和 Collins（2015）的密度驱动注释投影方法相结合。该方法在多个语言中实现了针对先前工作的最新进展，在只使用比利时圣经作为翻译数据的情况下，与以前的工作相比，Europarl 语料库的结果表现出额外的提升。最后，作者在通用依赖语料库的 38 个数据集上进行了结果展示。