计算机科学与探索
計算機科學與探索
계산궤과학여탐색
JOURNAL OF FRONTIERS OF COMPUTER SCIENCE & TECHNOLOGY
2014年
4期
467-472
,共6页
不协调决策表%μ-约简%辨识矩阵%辨识公式
不協調決策錶%μ-約簡%辨識矩陣%辨識公式
불협조결책표%μ-약간%변식구진%변식공식
inconsistent decision table%μ-reduction%identification matrix%identification formula
研究了不协调决策表中基于对象的μ-约简问题,给出了μ-约简的一些性质及等价定义,得到了μ-约简的判定定理和相应的可辨识矩阵及辨识公式,从而提供了不协调目标信息系统知识约简的新方法。并通过实例将决策表中基于对象的约简与整体约简进行了对比,结果表明前者可以得到更简洁的知识。该方法也适用于协调目标信息系统。
研究瞭不協調決策錶中基于對象的μ-約簡問題,給齣瞭μ-約簡的一些性質及等價定義,得到瞭μ-約簡的判定定理和相應的可辨識矩陣及辨識公式,從而提供瞭不協調目標信息繫統知識約簡的新方法。併通過實例將決策錶中基于對象的約簡與整體約簡進行瞭對比,結果錶明前者可以得到更簡潔的知識。該方法也適用于協調目標信息繫統。
연구료불협조결책표중기우대상적μ-약간문제,급출료μ-약간적일사성질급등개정의,득도료μ-약간적판정정리화상응적가변식구진급변식공식,종이제공료불협조목표신식계통지식약간적신방법。병통과실례장결책표중기우대상적약간여정체약간진행료대비,결과표명전자가이득도경간길적지식。해방법야괄용우협조목표신식계통。
This paper studies the μ- reduction for the objects in inconsistent decision tables, introduces some properties and the equivalent definition of μ- reduction, obtains the judgment theorem and corresponding identification matrix and formula with respect to the μ-reduction, and proposes new approaches to knowledge reductions in inconsistent information systems. Compared with the overall reduction for a decision table, the reduction for the objects in the decision table not only can get more concise knowledge, but also has good application value in real life. In addition, this method is also suitable for the consistent information systems.