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本文揭示级阶成分分析法(简称RCA)对直接成分分析法(简称ICA)在四个方面的革新,即(1)摒弃ICA的二分原则,以语言层次系统和级阶系统作为成分切分的主要依据,(2)改变ICA侧重组合关系描写的传统,从聚合关系出发对语言运作的底层关系进行全面描写,(3)引入基于精密度阶的特征选择系统,使语言描写有序化,(4)对描写过程进行功能标记,明示描写对象各成分间的深层关系,但ICA的一些基本概念仍然在RCA中具有重要地位,且两种方法的切分过程均可用树形图或加扩法予以表征,切分结果均为等级结构。
This article reveals the innovation of the direct analytic hierarchy process (referred to as RCA) in four aspects: (1) the dichotomy of abandonment of ICA, the segmentation by the language level system and the hierarchical system (2) To change the tradition that ICA focuses on the description of portfolio relations, and to describe the bottom-line relations of language operations from the perspective of polymerization; (3) To introduce the feature selection system based on the order of precision to make the description of languages orderly and ( 4) The process of marking the function, clearly describing the deep relationship between the various components of the object, but some of the basic concepts of ICA still in the RCA has an important position, and the two methods of segmentation can be tree or extended method To be characterized, segmentation results are hierarchical structure.