Statistical Parsing of Tree Wrapping Grammars
Statistical Parsing of Tree Wrapping Grammars
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DOI：
10.18653/v1/2020.coling-main.595
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发表时间：
2020-12
期刊：
影响因子：
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通讯作者：
Tatiana Bladier;J. Waszczuk;Laura Kallmeyer
中科院分区：
文献类型：
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作者：
Tatiana Bladier;J. Waszczuk;Laura Kallmeyer
我们描述了一种方法，统计分析与树包装文法（TWG）。TWG是一种树的重写形式，它包含了替换、姊妹添加和包树替换的树组合操作。TWG可以从选区树库中提取，旨在以语言学上适当的方式表示长距离依赖（LDD）。我们提出了一种基于神经超标记和A* 分析的TWG分析算法。我们提取TWG的角色和参考语法的树库中的英语，并讨论了第一次分析结果与此语法。
We describe an approach to statistical parsing with Tree-Wrapping Grammars (TWG). TWG is a tree-rewriting formalism which includes the tree-combination operations of substitution, sister-adjunction and tree-wrapping substitution. TWGs can be extracted from constituency treebanks and aim at representing long distance dependencies (LDDs) in a linguistically adequate way. We present a parsing algorithm for TWGs based on neural supertagging and A* parsing. We extract a TWG for English from the treebanks for Role and Reference Grammar and discuss first parsing results with this grammar.