Handling Dislocated and Discontinuous Constituents in Chinese Semantic Role Labeling
msra(2004)
摘要
This paper discusses two outstanding is- sues, dislocated and discontinuous argu- ments, in the construction of the Penn Chi- nese PropBank, a corpus that has already been treebanked. It describes the verb- specific approach in our semantic role an- notation in which arguments and adjuncts are treated differently in the sense that ar- guments are assigned labels that are inter- pretable only within the scope of the verb while adjuncts receive labels that reflect a more global classification. The paper dis- cusses the rationale behind this approach in comparison with other semantic role la- beling projects. difference between the various approaches can be characterized in terms of levels of abstraction. The Propbank style of annotation can be considered to be the least abstract, as the role labels (arg0, arg1, etc.) in a propbank are meaningful only with regard to a specific verb. The FrameNet role labels are more abstract than a propbank label in the sense that they abstract away from any specific verb and instead ap- ply to a class of related verbs (or nouns that have
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关键词
dislocations,noun,semantic role labeling
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