Phonological Features for Morphological Inflection
Phonological Features for Morphological Inflection
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形态变化的语音特征
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Mans Hulden
中科院分区：
文献类型：
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作者：
Adam Wiemerslage;Miikka Silfverberg;Mans Hulden
形态变化建模是自然语言处理中的一项重要任务。与以前主要使用拼写表示法的工作不同，我们在语音字符空间中进行了这项任务的实验，将输入表示为IPA片段或语音区别性特征束。我们表明，这两个输入，有些违反直觉，在形态变化方面实现了类似的精度，略低于正射模型。我们的结论是，与IPA片段相比，提供详细的语音表示在很大程度上是多余的，与单词词形变化相关的发音差异已经潜伏在许多字形书写系统的分布特性中。
Modeling morphological inflection is an important task in Natural Language Processing. In contrast to earlier work that has largely used orthographic representations, we experiment with this task in a phonetic character space, representing inputs as either IPA segments or bundles of phonological distinctive features. We show that both of these inputs, somewhat counterintuitively, achieve similar accuracies on morphological inflection, slightly lower than orthographic models. We conclude that providing detailed phonological representations is largely redundant when compared to IPA segments, and that articulatory distinctions relevant for word inflection are already latently present in the distributional properties of many graphemic writing systems.