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  • 通过定义抽象相关关系这一概念来研究覆盖粗糙集.借助群论中的思想,在覆盖上进行抽象,从而在覆盖粗糙集中定义了元素与元素的抽象相关关系,元素与集合的依赖关系.进而在粗糙集上定义了独立集、基、秩甬数等概念,并在此基础...
    独立集秩函数覆盖粗糙集
  • [期刊论文] 《电子科技学刊》 - 2011年2期
    In many machine learning applications,data are not free, and there is a test cost for each data item. For the economical reason, some existing works try to minimize the test cost and at the same time,p...
    Cost-sensitive learningconstraintheuristic algorithmtest cost
  • [期刊论文] 《南昌工程学院学报》 - 2006年2期
    Rough set theory is a technique of granular computing. In this paper, we study a type of generalized rough sets based on covering. There are several literatures[ 1,40-43 ] exploring covering-based roug...
    rough setcoveringgranular computingduality
  • [会议论文] ,2008 - 2008 3rd International Conference on Intelligent System and Knowledge Engineering(第三届智能系统与知识工程国际会议)(ISKE 2008)
    Besides scoring function methods,correlation analysisis another index to indicate homology of the sequences.In this paper,the statistical properties of correlationbetween two comparing sequences were a...
  • [会议论文] ,2008 - 2008 3rd International Conference on Intelligent System and Knowledge Engineering(第三届智能系统与知识工程国际会议)(ISKE 2008)
    Maintaining an accurate assessment of military situation assessment is essential to prevention, containment and effective response to military conflicts of all kinds.This research developed an intellig...
  • [会议论文] ,2008 - 2008高等智能国际会议(2008 International Conference on Advanced Intelligence)
    Two issues on rough sets are discussed in this paper. Firstly, a mistake on rough Nelson algebra is pointed out, and generalized rough Nelson algebra is introduced. Secondly, the following result is pr...
    Rough setsRough Nelson algebraRoughfuzzy setDe Morgan algebra
  • [会议论文] ,2012 - 2012 International Conference on Intelligent System Design and Engineering Applications(2012年智能系统设计与工程应用国际会议 ISDEA 2012)
    Rough set theory is an effective mathematical tool for dealing with inconsistencies in information systems. Dominance based rough set (DBRS) is an extension to the original rough set, in which the equi...
    Variable consistencyDominance-based rough setDominance matrix
  • [会议论文] ,2014 - The 9th International Conference on Rough Sets and Knowledge Technology (RSKT 2014)(第九届粗糙集与知识技术国际会议)
      The minimal test cost attribute reduction is an important component in data mining applications,and plays a key role in cost-sensitive learning.Recently,several algorithms are proposed to address thi...
    Cost-sensitive learningMinimal test costAttribute reductionGranular computingBiologically-inspired algorithm
  • [会议论文] ,2014 - The 9th International Conference on Rough Sets and Knowledge Technology (RSKT 2014)(第九届粗糙集与知识技术国际会议)
      Minimal test cost attribute reduction is an important problem in cost-sensitive learning since it reduces the dimensionality of the attributes space.To address this issue,many heuristic algorithms ha...
    Cost-sensitive learningGranular computingAttribute reductionTest costLogarithmic weighted algorithm
  • [会议论文] ,2014 - The 9th International Conference on Rough Sets and Knowledge Technology (RSKT 2014)(第九届粗糙集与知识技术国际会议)
      Recommender systems are popular in e-commerce as they provide users with items of interest.Existing top-K approaches mine the K strongest granular association rules for each user,and then recommend r...
    Granular computingrecommender systemgranule association rulesconfidencesignificance
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