This paper tries to account for some of the mistakes by employing valency and the notion of semantic roles.
在英语学习中，中国学生会犯很多关于动词的错误，本文力图通过配价理论和语义角色来解释其中的部分错误。
Then semantic roles of sentences are used in answer extraction of the question answering system, and it improves the system's accuracy.
然后将语义角色信息用于问答系统的答案抽取中，提高了问答系统的精度。
In particular, given a sentence and a predicate, semantic role labeling (SRL) identifies its semantic arguments and classifies their semantic roles.
作为其具体实现，语义角色标注的任务是识别并标注句中每个目标谓词的所有充当语义角色的句法成分。
Four characteristics of implied semantic roles are summed up, which include their depended and paradigmatic characters and their complementary and crossing distribution.
隐含语义角色具有被依赖性特征、聚合性特征、互补性分布特征和交叉性分布特征。
This paper firstly discusses three kinds of level in the fineness hierarchy of semantic roles, and introduces their application in some systems of natural language processing(NPL).
本文首先讨论语义角色的三种精细程度不一的分类层级，介绍它们各自在语言信息处理系统中的有关应用。
There are mainly three reasons of the exchanging of subject and object :the agent-patient relationship of subject and object is vague, the features of semantic roles are not very typical;
主宾互易的原因从总体上看主要有三个方面：主宾语施受关系模糊，语义角色的特征不是十分典型；
Providing semantic information, such as roles of objects and relationships between them.
提供语义信息，如对象的作用和它们之间的关系。
Typically, you should define your own roles that suit your business logic with the predefined semantic categories.
通常，您应该使用预定义的语义类别定义适合您的业务逻辑的角色。
The analysis indicates that the theory of semantic fields can play two roles in the formation of a text, the roles of achieving cohesion and coherence and rhetoric embellishment.
分析结果表明，语义场理论在语篇形成中可以起到两大作用：衔接连贯作用和修辞润色作用。
The analysis indicates that the theory of semantic fields can play two roles in the formation of a text, the roles of achieving cohesion and coherence and rhetoric embellishment.
分析结果表明，语义场理论在语篇形成中可以起到两大作用：衔接连贯作用和修辞润色作用。
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