Long words in maximum entropy phonotactic grammars*
Long words in maximum entropy phonotactic grammars*
复制标题
最大熵语音语法中的长词*
作者：
Robert Daland
音位语法给所有可能的表面形式赋予一个良好的分数。本文讨论了音序语法是否应该是概率性的，并给出了几个论证。Hayes & Wilson（2008）证明了最大熵和声语法作为概率音位语法的前景。本文指出了一个理论问题与maxent phonotactic语法：他们不能保证分配一个定义良好的概率分布，因为序列，包含任意重复的未标记序列可能会受到惩罚。本文提出了一个解决方案：包括一个 *Struct约束。数学证明的必要条件和充分条件，以避免处罚不足的问题是在网上补充材料。
A phonotactic grammar assigns a well-formedness score to all possible surface forms. This paper considers whether phonotactic grammars should be probabilistic, and gives several arguments that they need to be. Hayes & Wilson (2008) demonstrate the promise of a maximum entropy Harmonic Grammar as a probabilistic phonotactic grammar. This paper points out a theoretical issue with maxent phonotactic grammars: they are not guaranteed to assign a well-defined probability distribution, because sequences that contain arbitrary repetitions of unmarked sequences may be underpenalised. The paper motivates a solution to this issue: include a *Struct constraint. A mathematical proof of necessary and sufficient conditions to avoid the underpenalisation problem are given in online supplementary materials.
分词、词汇习得和语音变异的联合学习模型
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作者：
Micha Elsner (Author)
通讯作者：
Micha Elsner (Author)