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基于内涵亏值的概念格渐进式构建
  • ISSN号:1001-9081
  • 期刊名称:《计算机应用》
  • 时间:0
  • 分类:TP18[自动化与计算机技术—控制科学与工程;自动化与计算机技术—控制理论与控制工程]
  • 作者机构:[1]辽宁科技大学软件学院,辽宁鞍山114051, [2]辽宁科技大学应用技术学院,辽宁鞍山114051
  • 相关基金:基金项目:国家自然科学基金资助项目(61273019);辽宁科技大学青年基金资助项目(2014QN21).
中文摘要:

为了避免构建概念格时的繁琐过程,提高概念格构建的效率,提出了一种基于内涵亏值通过查找顶元素来快速渐进式生成概念格的新方法。首先,形式化地定义了顶元素、旧概念、产生概念、新概念、产生子概念、内涵亏值集合、剩留父概念、超集删除与正则队列;提出了概念格元素是否为顶元素的判定定理并给出了其证明;其次,在原概念格的正则队列中依次取概念元素,经超集删除后得到剩留父概念;最后,从剩留父概念查找其所在等价类的顶元素,逐步生成新概念格的正则队列。理论分析时间复杂度较基于属性的渐进式概念格生成(CLIF_A)算法与FastAddIntent算法有效降低,在实验例证对比中,概念数目大于150时,所用时间远少于对比算法。实验结果表明该算法方法简单,构建效率较对比算法明显提高。

英文摘要:

Concerning the tedious process during the construction of concept lattice, to improve the efficiency of building concept lattices, a new incremental method of constructing concept lattice based on intent waned value by seeking top elements was proposed. Firstly, top element, original concept, produced concept, new concept, producer concept, the set of intent waned values, reminded parent concept, superset delete and regular queue were formally defined; the judging theorem and proof whether the concept elements were top elements were given. Secondly, the elements were extracted from the regular queue of the original lattice in due order and the reminded parent concepts were got after superset delete. Finally, the top elements were found from the equivalent classes of the reminded parent concepts and the regular queue of the new lattice was gradually generated. Time complexity was effectively reduced compared with the Attribute-based Concept Lattice Incremental Formation (CLIF-A) algorithm and the FastAddIntent algorithm by theory analysis. In comparison with simulated experiments, the time consumption of the proposed algorithm was far less than the comparative approaches in large size of population. The simulation results show that the proposed algorithm is simple, and can effectively improve the time performance, meanwhile provides better performance in construction efficiency.

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期刊信息
  • 《计算机应用》
  • 北大核心期刊(2011版)
  • 主管单位:四川省科学技术协会
  • 主办单位:四川省计算机学会中国科学院成都分院
  • 主编:张景中
  • 地址:成都市人民南路四段九号科分院计算所
  • 邮编:610041
  • 邮箱:xzh@joca.cn
  • 电话:028-85224283
  • 国际标准刊号:ISSN:1001-9081
  • 国内统一刊号:ISSN:51-1307/TP
  • 邮发代号:62-110
  • 获奖情况:
  • 全国优秀科技期刊一等奖,国家期刊奖提名奖,中国期刊方阵双奖期刊,中文核心期刊,中国科技核心期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,波兰哥白尼索引,美国剑桥科学文摘,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:53679