Three Kinds of Control Strategies in Two-Dimensional Extended Attribute Grammars
二维扩展属性文法中的三种识别控制机制

This paper presents three kinds of control strategies, the polysemous grammars, the coexisting grammars, and the structure inferrings, realized in two-dimensional extended attribute grammar (2-1) EAG) method for the recognition of hand written Chinese characters. With these control strategies, 2-D EAG method has higher tolerance ability to structural distortion. It makes analogy among similar structures, adopts the manner of "outline preference", and constraints redundant recognition.