How to acquire the relation between the concepts and how to label the type of the conceptual relation are two basic problems of the ontology relation learning. 如何确定概念间语义关系的存在性和如何确定概念间的关系类型是本体关系学习的两个基本问题。
Based on the analysis of activity floats existed, three new concepts of float are proposed, intrinsic relation of the same activity's float is offered, and label algorithm is given, moreover, float's transitivity of different activities is computed. 本文在已有时差概念分析的基础上,提出了三个新时差概念,给出了同一工序不同时差关系,提出了标值算法,算出了不同工序时差传递量。
So, it has positive meanings that this research expanded the depth of study with the relation of perceived risk and purchase intention. It could also direct the retailers scientifically choose private label category based on perceived risk, raised private label purchase intention. 因此,本研究对于拓展感知风险与购买倾向间研究深度具有积极意义;同时也能够从实践上指导零售商从感知风险的角度出发,科学选择自有产品种类,提高超市自有品牌购买倾向。