郑州大学学报（理学版）2025，Vol.57Issue(3)：57-64,8.DOI:10.13705/j.issn.1671-6841.2023190
基于三支区间集前概念的知识提取及应用
Knowledge Extraction and Application Based on Three-way Interval-set Preconcept
摘要
Abstract
Preconcepts,as a form of knowledge expression that weakened formal concepts in formal con-cept analysis,were used to study practical problems to extract two types of knowledge:common attributes of objects and objects shared by attributes,which were two important types of knowledge that formal con-cepts cannot extract.The interval-set concept lattice combined the interval-set theory with the formal con-cept,so the formal concept could be extended to the interval-set concept by using the characteristics of the uncertain information that the interval set can reflect.By introducing the interval-set concept with pre-concept theory and three-way decisions,the object-induced three-way interval-set preconcept(namely,OE-interval-set preconcept)was proposed.On this basis,the lattice structure of OE-interval-set precon-cept was discussed and then compared with preconcepts,three-way preconcepts and OE-interval-set pre-concepts.The algorithm for finding all OE-interval-set preconcepts was constructed using the relationship among preconcepts,three-way preconcepts and OE-interval-set preconcepts.These theoretical results were validated by doctors in summarizing the practical content of cases,demonstrating the effectiveness and practicality of the defined knowledge representation form.This would help expand the research depth and application scope of interval-set concept and preconcept theory and provide a feasible method for knowledge extraction and information mining.关键词
前概念/区间集/区间集概念/三支决策/三支区间集前概念Key words
preconcept/interval-set/interval-set concept/three-way decision/three-way interval-set preconcept分类
信息技术与安全科学引用本文复制引用
毛华,胥德华,刘川,郑博雅,袁晓垒,杨兰珍..基于三支区间集前概念的知识提取及应用[J].郑州大学学报（理学版）,2025,57(3):57-64,8.基金项目
国家自然科学基金项目(61572011) （61572011）
