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《山东大学学报(理学版)》 ›› 2019, Vol. 54 ›› Issue (4): 105-115.doi: 10.6040/j.issn.1671-9352.0.2018.296

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形式概念分析中面向对象粒概念的动态更新

李粉宁1,2,范敏1,2*,李金海1,2   

  1. 1.昆明理工大学数据科学研究中心, 云南 昆明 650500;2.昆明理工大学理学院, 云南 昆明 650500
  • 发布日期:2019-04-08
  • 作者简介:李粉宁(1994— ),女,硕士研究生,研究方向为概念格与粒计算. E-mail:fenningli2016@163.com*通信作者简介:范敏(1975— ),女,博士,副教授,硕士生导师,研究方向为基于粗糙集、模糊集、博弈论的数据挖掘技术与决策分析. E-mail:fmkmust@163.com
  • 基金资助:
    国家自然科学基金资助项目(61562050,61305057,61573173)

Dynamic updating of object-oriented granular concepts in formal concept analysis

LI Fen-ning1,2, FAN Min1,2*, LI Jin-hai1,2   

  1. 1. Data Science Research Center, Kunming University of Science and Technology, Kunming 650500, Yunnan, China;
    2. Faculty of Science, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
  • Published:2019-04-08

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摘要： 粒计算是当前计算智能研究领域中模拟人类思维的新方法,它覆盖了所有有关粒的理论、方法和技术,是解决复杂问题的有效工具。粒概念是粒计算与形式概念分析相结合提出的一个重要概念。针对动态形式背景中粒概念的更新问题,介绍了面向对象粒概念,分析了面向对象粒概念的外延与内涵的变化规律,并在对象与属性逐步删减的环境下给出了更新面向对象粒概念的方法。最后,通过数值实验验证了该算法的有效性。

关键词: 概念格, 粒计算, 粒概念, 动态更新

Abstract: Granular computing(GrC)is a new method to simulate humans thinking in the field of computational intelligence research. GrC includes all theories, methods and technologies related to granularity, and it is an effective tool to solve complex problems. Granular concept is an important notion which is defined by combining granular computing and formal concept analysis. In order to update the granular concepts in a dynamic formal context, this paper introduces the notion of an object-oriented granular concept, analyzes how the extent and intent of the object-oriented granular concept are changed, and puts forward approaches to update the object-oriented granular concepts when objects and attributes are gradually removed from a formal context. Finally, some numerical experiments are conducted to show the effectiveness of the proposed algorithms.

Key words: concept lattice, granular computing, granular concept, dynamic updating

中图分类号: 

  • TP18
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