摘要
字符串文法不适于描述二维以上事物的特征，无法定义事物之间的复杂关系．本文提出了关系图的概念，对关系图的性质进行了研究．在此基础上提出了一种新的文法——关系图文法．该文法能够方便地抽象和概括二维以上复杂对象的特征，为分析和识别这些对象提供工具和方法，可以广泛应用于模式识别、高维文本分析和描述图示语言的语法等领域．为了使关系图文法实用化。
It's difficult to describe 2 _D objects and more complicated ones with string grammar, for it can't be used to define the complex relations among them. This paper presents the concept of relation graph and its properties. As a new type of grammar, relation graph grammar is able to abstract the attributes of complicated objects conveniently and provide tools to analyze and recognize them. Relation graph grammar can be used in many fields such as pattern recognition, high dimensional text analysis and visual languages. To make the grammar applicable, the recognition and the matching algorithms of it are also introduced respectively.
出处
《软件学报》
EI
CSCD
北大核心
1997年第2期87-92,共6页
Journal of Software
基金
国家自然科学基金
国家863高科技项目基金
国家"八五"攻关项目基金
关键词
文法
关系图
形式语言
模式识别
算法
Grammar, relation graph, formal languages, pattern recognition, algorithm.
