Dependency Distances and Their Frequencies in Indo-European Language
Dependency Distances and Their Frequencies in Indo-European Language
复制标题
印欧语言中的依存距离及其频率
DOI：
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发表时间：
2020
影响因子：
1.4
通讯作者：
Kim Gerdes
中科院分区：
文献类型：
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作者：
Xinying Chen;Kim Gerdes
摘要：本研究调查了依赖关系的两个特征之间的关系，即依赖距离和依赖频率。该研究基于对包含 10 种印欧语言的并行依存关系树库的分析。生成两个相应的随机依赖树库作为比较的基线。在计算出这些树库中的依赖距离值及其频率后，对于每种语言，我们将四个函数（即二次函数、指数函数、对数函数和幂律函数）拟合到其原始随机数据集。初步结果表明，所有 10 种印欧语言的两个依存特征之间都存在关系。该关系可以进一步形式化为幂律函数，可以将观察到的数据与随机生成的数据集区分开来。
ABSTRACT The present study investigates the relationship between two features of dependencies, namely, dependency distances and dependency frequencies. The study is based on the analysis of a parallel dependency treebank that includes 10 Indo-European languages. Two corresponding random dependency treebanks are generated as baselines for comparison. After computing the values of dependency distances and their frequencies in these treebanks, for each lan-guage, we fit four functions, namely quadratic, exponent, logarithm, and power-law func-tions, to its original and random datasets. The preliminary result shows that there is a rela-tion between the two dependency features for all 10 Indo-European languages. The relation can be further formalized as a power-law function which can distinguish the observed data from randomly generated datasets.