摘要
传统的语义角色标注只能为句中显式表达的句法论元分配语义角色,但是忽略了一些隐式的语义成分,即零形式。该文基于汉语框架语义研究了零形式的识别及消解。在识别阶段,首先使用规则方法进行零形式检测,然后运用筛选过滤的策略去除部分错误识别的零形式;在消解阶段,将篇章中显式表达的框架元素填充项作为零形式的候选先行语,提出结合框架元素语义类型与框架关系的消解方法。在构建的164篇中文语料上进行实验,与其他方法相比,该方法能获得更好的结果。
Semantic Role Labeling is traditionally concerned with searching the fillers of those explicit roles appearing within sentence boundaries,ignoring some implicit arguments called null instantiation.This paper addressed the issue of automatic null instantiation identification based on Chinese FrameNet.We first apply the rule-based approach to detect null instantiation,which is followed by apost filtering to remove errors.Then,to deal with the arguments,we present an approach to combining semantic types of frame elements and frame-to-frame relations.We conduct experiments on 164 Chinese discourses,and compared with some other method,our method can get a better result.
引文
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(1)框架语义角色标注模式是指标注的框架元素,其中也包括被标记为零形式的框架元素。